universal power monitor communication functions · this chapter describes the setup procedure...

User’sManual

Yokogawa Electric Corporation

IM 77C01H01-10EN4th Edition

Model UPM100, UPM101

Universal Power MonitorCommunication Functions

iIM 77C01H01-10EN

Introduction

This user’s manual describes the communication functions of the UPM100 and UPM101 universal power monitors and contains information on how to create communication programs.

Read the manual carefully to understand the communication functions of the UPM100 and UPM101 universal power monitors.

In this manual, “UPM100 and UPM101 universal power monitors” are referred to as “UPM100 universal power monitor” because the communication functions of UPM100 and UPM101 universal power monitors are common.And the illustrations of “UPM100 universal power monitor with display function” are used for description.

The UPM100 universal power monitor has the following communication protocols.

• PC link communication protocol• MODBUS communication protocol• UPM01 communication protocol 1

You are required to have background knowledge of the communication specifications of higher-level devices, their communication hardware, language used for creating communication programs, and so on.

1: The UPM01 communication protocol is the original communication protocol for the UPM01, UPM02, and UPM03. The protocol can be used only for the UPM100 universal power monitor with the optional measuring function “Integral resolution Wh” specified at ordering.

Intended ReadersThis manual is intended for people familiar with the functions of the UPM100 universal power monitor, control engineers and personnel in charge of maintaining instrumentation and control equipment.

Related DocumentsThe following user’s manuals all relate to the communication functions of the UPM100 universal power monitor. Read them as necessary.

• Model UPM100 Universal Power Monitor User’s Manual Document number: IM 77C01H01-00EN

• Model UPM100 Universal Power Monitor User’s Manual (for 920 MHz Wireless Communication model) Document number: IM 77C01H01-43EN Note: 920 MHz wireless communication can be used only in the Republic of Korea.

• Model UPM101 Universal Power Monitor (With Dedicated CT) User’s Manual Document number: IM 77C01J01-00EN

4th Edition: Mar. 8All Rights Reserved, Copyright © 2005, Yokogawa Electric Corporation

ii IM 77C01H01-10EN

Documentation Conventions

SymbolsThis manual uses the following symbols.

Symbols Used in the Main Text

MarkingsNote Draws attention to information that is essential for understanding

the operation and/or features of the product.

TIP Gives additional information to complement the present topic.

See Also Gives reference locations for further information on the topic.

Symbols Used in Figures and Tables

Markings[NOTE] Draws attention to information that is essential for understanding

the features of the product.

[TIP] Gives additional information to complement the present topic.

[See Also] Gives reference locations for further information on the topic.

Description of Displays1. Some of the representations of product displays shown in this manual may be

exaggerated, simplified, or partially omitted for reasons of convenience when explaining them.

2. Figures and illustrations representing the universal power monitor’s displays may differ from the real displays in regard to the position and/or indicated characters (upper-case or lower-case, for example), the extent of difference does not impair a correct understanding of the functions and the proper operations and monitoring of the system.

iiiIM 77C01H01-10EN

Notices

Regarding This User’s Manual1. This manual should be passed on to the end user. Keep the manual in a safe place.2. Read this manual carefully to gain a thorough understanding of how to operate this

product before you start using it.3. This manual is intended to describe the functions of this product. Yokogawa Electric

Corporation (hereinafter simply referred to as Yokogawa) does not guarantee that these functions are suited to the particular purpose of the user.

4. Under absolutely no circumstance may the contents of this manual, in part or in whole, be transcribed or copied without permission.

5. The contents of this manual are subject to change without prior notice.6. Every effort has been made to ensure accuracy in the preparation of this manual.

Should any errors or omissions come to your attention however, please contact your nearest Yokogawa representative or our sales office.

Regarding Protection, Safety, and Prohibition Against Unauthorized Modification1. In order to protect the product and the system controlled by it against damage and

ensure its safe use, be certain to strictly adhere to all of the instructions and precautions relating to safety contained in this document. Yokogawa does not guarantee safety if products are not handled according to these instructions.

2. The following safety symbols are used on the product and/or in this manual.

Symbols Used on the Product and in This Manual

MarkingsThis symbol on the product indicates that the operator must refer to an explanation in the user’s manual in order to avoid the risk of injury or death of personnel or damage to the instrument. The manual describes how the operator should exercise special care to avoid electric shock or other dangers that may result in injury or loss of life.

Protective Grounding Terminal

This symbol indicates that the terminal must be connected to ground prior to operating the equipment.

iv IM 77C01H01-10EN

Force Majeure

1. Yokogawa does not make any warranties regarding the product except those mentioned in the WARRANTY that is provided separately.

2. Yokogawa assumes no liability to any party for any loss or damage, direct or indirect, caused by the use or any unpredictable defect of the product.

3. Be sure to use the spare parts approved by Yokogawa when replacing parts or consumables.

4. Modification of the product is strictly prohibited.5. Reverse engineering such as the disassembly or decompilation of software is strictly

prohibited.6. No portion of the software supplied by Yokogawa may be transferred, exchanged,

leased, or sublet for use by any third party without the prior permission of Yokogawa.

vIM 77C01H01-10EN

1

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2

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7

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App

Contents

Introduction ................................................................................................................................................ iDocumentation Conventions .................................................................................................................... iiNotices ..................................................................................................................................................iii

Chapter 1 Setup1.1 Setup Procedure .................................................................................................................1-11.2 Notes on Setting RS-485 Communication Conditions ........................................................1-2

Chapter 2 RS-485 Communication Specifications

Chapter 3 Procedures for Setting UPM100/UPM101 Functions3.1 Basic Setting .......................................................................................................................3-2

3.1.1 Setting of VT Ratio .................................................................................................................3-23.1.2 Setting of CT Ratio .................................................................................................................3-33.1.3 Setting of Integral Low-cut Power ..........................................................................................3-4

3.2 Setting Pulse Output ...........................................................................................................3-53.2.1 Pulse Unit-1 of Electric Energy ..............................................................................................3-53.2.2 ON Pulse Width-1 of Electric Energy .....................................................................................3-63.2.3 Pulse Unit-2 of Electric Energy ..............................................................................................3-73.2.4 LAG/LEAD/Regenerative Selection for Pulse Output of Electric Energy ...............................3-83.2.5 ON Pulse Width-2 of Electric Energy .....................................................................................3-9

3.3 Executing Reset Operations .............................................................................................3-103.3.1 Remote Reset ......................................................................................................................3-103.3.2 Active Energy Reset ............................................................................................................. 3-113.3.3 Maximum/Minimum Values Reset ........................................................................................ 3-113.3.4 Regenerative Energy Reset .................................................................................................3-123.3.5 Reactive Energy Reset ........................................................................................................3-123.3.6 Apparent Energy Reset ........................................................................................................3-13

3.4 Other Settings ...................................................................................................................3-143.4.1 Start of Optional Integration .................................................................................................3-143.4.2 Stop of Optional Integration .................................................................................................3-143.4.3 Start/Stop of Integration .......................................................................................................3-153.4.4 Active Energy Writing ...........................................................................................................3-163.4.5 Apparent Energy Writing ......................................................................................................3-173.4.6 LEAD Reactive Energy Writing ............................................................................................3-183.4.7 LAG Reactive Energy Writing ..............................................................................................3-193.4.8 Regenerative Energy Writing ...............................................................................................3-20

Chapter 4 PC Link Communication4.1 Overview .............................................................................................................................4-1

4.1.1 Configuration of Command ....................................................................................................4-24.1.2 Configuration of Response .....................................................................................................4-34.1.3 Response Error Codes ...........................................................................................................4-44.1.4 Specifying Broadcast .............................................................................................................4-5

4.2 Command and Response ...................................................................................................4-6BRD Reads I relays on a bit-by-bit basis ...............................................................................................4-7BWR Writes data into I relays on a bit-by-bit basis ...............................................................................4-8BRR Reads I relays on a bit-by-bit basis in a random order .................................................................4-9BRW Writes data into I relays on a bit-by-bit basis in a random order ................................................4-10BRS Specifies I relays to be monitored on a bit-by-bit basis ............................................................... 4-11BRM Monitors I relays on a bit-by-bit basis .........................................................................................4-12WRD Reads D registers and I relays on a word-by-word basis ..........................................................4-13WWR Writes data into D registers and I relays on a word-by-word basis ...........................................4-14WRR Reads D registers and I relays on a word-by-word basis in random order ................................4-15WRW Writes data into D registers and I relays on a word-by-word basis in random order .................4-16WRS Specifies the D registers and I relays to be monitored on a word-by-word basis ......................4-17WRM Monitors the D register and I relays on a word-by-word basis ..................................................4-18INF6 Reads the model, suffix codes, and version information ............................................................4-19INF7 Reads the maximum value of CPU.............................................................................................4-20

vi IM 77C01H01-10EN

4.3 Communication with Higher-level Devices ........................................................................4-214.3.1 Communication with FA-M3 (UT Link Module) .....................................................................4-214.3.2 Communication with Touch Panel ........................................................................................4-23

Chapter 5 MODBUS Communication5.1 Overview .............................................................................................................................5-1

5.1.1 Configuration of Message ......................................................................................................5-35.1.2 Specifying D Registers ...........................................................................................................5-45.1.3 Checking Errors .....................................................................................................................5-45.1.4 Responses from Slaves .........................................................................................................5-75.1.5 Specifying Broadcast .............................................................................................................5-9

5.2 Message and Response ...................................................................................................5-1003 Reads data from multiple D registers ............................................................................................. 5-1106 Writes data into D register ..............................................................................................................5-1208 Performs loop back test ..................................................................................................................5-1316 Writes data into multiple D registers ...............................................................................................5-14

Chapter 6 Functions and Usage of D Registers6.1 Overview of D Registers .....................................................................................................6-16.2 Interpretation of D Register Map Table ...............................................................................6-26.3 Configuration of D Registers ...............................................................................................6-36.4 D Register Map ...................................................................................................................6-4

Chapter 7 Functions and Usage of I Relays7.1 Configuration of I Relays .....................................................................................................7-27.2 I Relay Map .........................................................................................................................7-3

Chapter 8 UPM01 Communication (Original Communication Protocol)8.1 Overview .............................................................................................................................8-18.2 Frame Configuration ...........................................................................................................8-28.3 Functions .............................................................................................................................8-5

8.3.1 Measured Items (Category A) ................................................................................................8-58.3.2 Statistical Items (Category B) .................................................................................................8-78.3.3 Set Items (Category C) ..........................................................................................................8-88.3.4 User Control Items (Category E) ..........................................................................................8-10

AppendixAppendix 1 Table of ASCII Codes (Alphanumeric Codes) .................................................................App-1

Revision Information

Contents

1-1IM 77C01H01-10EN

Setup

11 Setup

This chapter describes the setup procedure required to use the communication functions and the communication specifications of the UPM100 universal power monitor.

Hereafter, the UPM100 universal power monitor is simply referred to as the UPM100.

1.1 Setup Procedure

Set up the communication functions on the UPM100 as follows:

Set up the communication function parameters of the UPM100.For the UPM100 with display function, set up the communication conditions using the front panel keys.For the UPM100 without display function, set up the communication conditions using the front DIP switches. (See the user's manual of Model UPM100 Power Monitor <Initial Setup Operations>.)

Connect a higher-level device and a UPM100.(See the user's manual of Model UPM100 Power Monitor <Installation>.)

Create communication programs for the higher-level device to perform communication.(See "4. PC Link Commnication" or "5. MODBUS Communication" for the communication protocol. See "6. Functions and Usage of D Registers", "7. Functions and Usage of I Relays" and "8. UPM01 Communication" for the data storing.)

010101E.EPS

To avoid an electric shock, be sure to turn off the power supply source to the equipment involved before you start wiring.

Note• In the case of PLC (MELSEC:Mitsubishi Electric Corporation’s sequencer), “B” is for (-), and “A”

is for (+).• Do not share the grounding wire with another instrument. Doing so may result in a failure of the

instrument. Use crimp terminals at cable ends.

Note Create communication programs referring to the documentation of each higher-level device. Higher-level devices : PCs, PLCs (sequencers), touch panels, and others.

Chapter 1 Setup

1-2 IM 77C01H01-10EN

1.2 Notes on Setting RS-485 Communication Conditions

This section describes the setting parameters for using the communication functionsand their setting ranges.

NoteThe details of the UPM100 communication conditions need to be the same as those of thecommunication conditions of the higher-level device to be connected.• UPM100 without display function (UPM100-xx0xx-20 or UPM100-xx2xx-20): Set up

the communication conditions using the front DIP switches. (See the user’s manual of Model UPM100 Universal Power Monitor <Initial Setup Operations>.)

• UPM100 with display function (UPM100-xx1xx-20 or UPM100-xx3xx-20): Set up the communication parameters using the front panel keys. (See the user’s manual of Model UPM100 Universal Power Monitor <Initial Setup Operations>.)

Table 1-1 Parameters to be Set for Communication Functions

Parameter Name

Parameter Symbol Setting Range

Initial SettingWithout 920

MHz Wireless Communication

With 920 MHz Wireless

Communication

RS-485 communication protocol (COMM)

PC link without checksum PCLK1

PCLK2 M RTU 3PC link with checksum PCLK2MODBUS (ASCII mode) M ASCMODBUS (RTU mode) M RTU UPM01 UPM01 2

RS-485 station number (ST-NO)

1 to 99 (1 to 31 recommended) 1 1

RS-485 communication baud rate (B-RT)

2400 bps

9600 19200 39600 bps

19200 bps

Parity (PRI)

None NONENONE NONE 3Even EVEN

Odd ODD

Stop bit(STP)

11 1 3

2

Data length 1

(DLN)

78 8 3

8

1: When “MODBUS (ASCII mode)” is selected in protocol selection, select “7” or “8” for the data length. When “MODBUS (RTU mode)” is selected, select “8.” Otherwise, communication cannot be achieved.

2: The UPM01 communication is selectable only when the optional measuring function “Integral resolution Wh” is specified at ordering.

3: When using 920 MHz Wireless Communication, please use the default value above. Note: 920 MHz wireless communication can be used only in the Republic of Korea.

1-3IM 77C01H01-10EN

Setup

1Use the DIP switches to enter the settings on UPM100 without display function.Referring to the diagram below, set the binary values, with the first bit on the left.

When using 920 MHz Wireless Communication, please use the factory setting values except for the address.Note: 920 MHz wireless communication can be used only in the Republic of Korea.

1

0

<Baud rate>00: 2400 bps01: 9600 bps10: 19200 bps

<Address (station number)>0: Usage prohibited1 to 99 can be set (1 to 31recommended) (Initial setting: 1)

<Data length>0: 8 bits1: 7 bits

<Communication protocol>00: PC link without SUM01: PC link with SUM10: MODBUS ASCII11: MODBUS RTU

<Parity>00: None01: Even10: Odd11: Usage prohibited

<Stop bit>0: 1 bit1: 2 bits

denotes initial settings.

<UPM01 protocol>0: None1: With protocol

RS-485 communication protocol (COMM)Set the communication protocol identical to that of the higher-level device to be connected.

RS-485 communication baud rate (B-RT)Set the baud rate identical to that of the higher-level device to be connected. (Otherwise,proper communication cannot be achieved.)

Parity (PRI)Set the handling of parity to be carried out when data is sent or received. Set the parity bitstate identical to that of the higher-level device to be connected.

Stop bit (STP)Set the stop bit identical to that of the higher-level device to be connected.

Data length (DLN)Set the data length identical to that of the higher-level device to be connected. (When“MODBUS (RTU mode)” is selected in protocol selection, select “8” for the data length.When “MODBUS (ASCII mode)” is selected, select “7” or “8.”)

RS-485 station number (ST-NO)Set the station number of the UPM100 itself. A station number of 1 to 99 may be assignedin any order. However, there is a limitation - the number of UPM100 to be connected to asingle communication port is limited to 31.

When connecting two or more power monitors to a single communication port, make surenone of the station numbers 1 to 31 is set twice.


1-4 IM 77C01H01-10EN

Example of connecting four UPM100 to a higher-level device by setting station numbers of01, 05, 10, and 20

Maximum overall cable length of 1200 m for a maximum of 31 slave stations

PC

010202E.EPS

ST-NO=01 ST-NO=05 ST-NO=10 ST-NO=20

<Binary Number Quick Reference Chart>The following table is a binary number quick reference chart for use in setting addresses (station numbers) with DIP switches.1 0000001 21 0010101 41 0101001 61 0111101 81 10100012 0000010 22 0010110 42 0101010 62 0111110 82 10100103 0000011 23 0010111 43 0101011 63 0111111 83 10100114 0000100 24 0011000 44 0101100 64 1000000 84 10101005 0000101 25 0011001 45 0101101 65 1000001 85 10101016 0000110 26 0011010 46 0101110 66 1000010 86 10101107 0000111 27 0011011 47 0101111 67 1000011 87 10101118 0001000 28 0011100 48 0110000 68 1000100 88 10110009 0001001 29 0011101 49 0110001 69 1000101 89 101100110 0001010 30 0011110 50 0110010 70 1000110 90 101101011 0001011 31 0011111 51 0110011 71 1000111 91 101101112 0001100 32 0100000 52 0110100 72 1001000 92 101110013 0001101 33 0100001 53 0110101 73 1001001 93 101110114 0001110 34 0100010 54 0110110 74 1001010 94 101111015 0001111 35 0100011 55 0110111 75 1001011 95 101111116 0010000 36 0100100 56 0111000 76 1001100 96 110000017 0010001 37 0100101 57 0111001 77 1001101 97 110000118 0010010 38 0100110 58 0111010 78 1001110 98 110001019 0010011 39 0100111 59 0111011 79 1001111 99 110001120 0010100 40 0101000 60 0111100 80 1010000


2-1IM 77C01H01-10EN

RS-485 C

omm

unication Specifications

2

2 RS-485 Communication Specifications

The RS-485 communication interface has the PC link communication, MODBUS communication, and UPM01 communication protocols.

Table 2-1 UPM100 Communication Specifications

Communication Hardware 2-wire RS-485 communication system

Communication Protocol Specifications

PC link communication without checksumPC link communication with checksumMODBUS communication (ASCII mode)MODBUS communication (RTU mode)UPM01 communication*1

Maximum Baud Rate 19200 bpsMaximun Communication Distance 1200 m

Communication Cable Shielded twisted-pair cable (wire size equivalent to AWG24)

*1 The UPM01 communication is selectable only when the optional measuring function “Integral resolution Wh” is specified at ordering.

Table 2-2 Communication Protocols and Types of Devices to be Connected

Communication Protocol Example of Connected Devices

MODBUS communicationPCs and the like which are installed with a MODBUS communication driver and SCADA software.PLCs which support MODBUS

PC link communication

PCs and the like which are installed with a PC-link communication driver and SCADA software.Touch panel (GP series)PLCs (FA-M3’s UT link module)

UPM01 communication

PCs and the like which are installed with the PR970 which supports the UPM01 protocol.PCs and the like which are installed with SCADA software which supports the UPM01 protocol.

Table 2-3 RS-485 Communication Interface

Item SpecificationsStandard Conforms to EIA, RS-485Maximum number of devices to be connected 31Communication system 2-wire, half duplexSynchronization Start-stop synchronizationCommunication protocol No protocolMaximum communication distance 1200 mBaud rate 2400, 9600 and 19200 bps

Chapter 2 RS-485 Communication Specifications

3-1IM 77C01H01-10EN

Procedures for Setting UPM

100/UPM

101 Functions

3

3 Procedures for Setting UPM100/UPM101 Functions

To set the functions of the UPM100, use the protocols described in “4. PC Link Communication,” “5. MODBUS Communication,” or “8. UPM01 Communication” according to the instructions in this chapter.

For details of each function, refer to the standard manuals that come with the UPM100.

For set value ranges, initial values, and data backup for registers, refer to “6. Functions and Usage of the D Register.” D Register numbers are explained in this chapter, but refer to Chapter 6 also for reference numbers for MODBUS communications.

The UPM100 offers registers for floating-point data. To perform settings via communication starting from larger digits, floating-point data is displayed by IEEE754 (single precision).

Note• The UPM100 has data (D register) the unit of which is two words. When 2-word data need to

be written or read, writing or reading operations must be performed for the 2- word data at the same time.

• Even if data written to the D register is out of the effective range, a normal response is returned. The part of the written data within the effective range becomes effective on the UPM100 when the equivalent setting change status is written for that data.

Chapter 3 Procedures for Setting UPM100/UPM101 Functions

3-2 IM 77C01H01-10EN

3.1 Basic Setting

3.1.1 Setting of VT Ratio

[Procedure]1. Write a VT ratio to the two D registers in the table below. The data type is 4-byte floating

point.

2. After writing that value, write “1” to the setting change status register, D0072.

D Register Reference No. H No. Description Effective RangeD0043 40043 002A VT ratio (float, lower 2 bytes)

1 to 6000D0044 40044 002B VT ratio (float, upper 2 bytes)

D0072 40072 0047 Setting change status If other than 1: InvalidIf 1: Writing is executed

Default VT ratio: 1 (4-byte floating-point data: 3F800000)

[Example]To set the VT ratio to 10.0:

For station number 01, use PC link communication (without checksum) and the random write command as shown below:

If 10.0 is converted into a 4-byte floating-point value, the value is 4120 0000.

[Command]

[STX] 01010WRW03D0043, 0000, D0044, 4120, D0072, 0001 [ETX] [CR]

[Response]

[STX] 0101OK [ETX] [CR]

Note• When the VT ratio is changed, already integrated values of active energy, reactive energy,

apparent energy, optional electric energy, and regenerative energy will return to 0.• Set the VT and CT ratios so that [Secondary rated power] x [VT ratio] x [CT ratio] is smaller than

10 GW.

3-3IM 77C01H01-10EN


100/UPM

101 Functions

3

3.1 Basic Setting

3.1.2 Setting of CT Ratio

[Procedure]1. Write a CT ratio to the two D registers in the table below. The data type is 4-byte floating

point.


D Register Reference No. H No. Description Effective RangeD0045 40045 002C CT ratio (float, lower 2 bytes) 0.05 to 32000

(with 5 significant digits; can be set to the second place of a decimal point.)

D0046 40046 002D CT ratio (float, upper 2 bytes)


Default CT ratio: 1 (4-byte floating-point data: 3F800000)

[Example]To set the CT ratio to 10.0:



[Command]

[STX] 01010WRW03D0045, 0000, D0046, 4120, D0072, 0001 [ETX] [CR]

[Response]


Note• When the CT ratio is changed, already integrated values of active energy, reactive energy,

apparent energy, optional electric energy, and regenerative energy will return to 0.• Set the VT and CT ratios so that [Secondary rated power] x [VT ratio] x [CT ratio] is smaller than

10 GW.

3-4 IM 77C01H01-10EN

3.1 Basic Setting

3.1.3 Setting of Integral Low-cut Power

[Procedure]1. Write an integral low-cut power value to the two D registers in the table below. The data

type is 4-byte floating point.


D Register Reference No. H No. Description Effective Range

D0047 40047 002E Integral low-cut power value(float, lower 2 bytes) 0.05 to 20.00

Unit: %D0048 40048 002F Integral low-cut power value

(float, upper 2 bytes)


Default integral low-cut power value: 0.05 (4-byte floating-point data: 3D4CCCCD)

[Example]To set the integral low-cut power value to 10.0:



[Command]

[STX] 01010WRW03D0047, 0000, D0048, 4120, D0072, 0001 [ETX] [CR]

[Response]


3-5IM 77C01H01-10EN


100/UPM

101 Functions

3

3.2 Setting Pulse Output

3.2.1 Pulse Unit-1 of Electric Energy

[Procedure]1. Write a pulse unit-1 of electric energy value to the D register in the table below. The data

type is integer.



D0049 40049 0030 Pulse unit-1 of electricenergy value

1 to 50,000Unit: x 10 Wh/pls


Default value of pulse unit-1 of electric energy: 100 (1000 Wh/pls)

[Example]To set the pulse unit-1 of electric energy value to 100 Wh/pls, write “000A.” 1


1: The data written when the integral resolution (kWh) option is specified.

[Command]

[STX] 01010WRW02D0049, 000A, D0072, 0001 [ETX] [CR]

[Response]


Note• The pulse unit-1 of electric energy value can be set for the UPM100 with pulse outputs.• To set the pulse unit-1 of electric energy value using the UPM100 with the integral resolution

(kWh) option via communication, set it to 1/10th the value of the displayed (true) value (e.g., set it to 5 when setting the pulse unit-1 of electric energy value to 50 Wh/pls).

The value of the UPM100 with the integral resolution (Wh) option should be the same as that of the displayed value.

3-6 IM 77C01H01-10EN


3.2.2 ON Pulse Width-1 of Electric Energy

[Procedure]1. Write an ON pulse width-1 of electric energy value to the D register in the table below.

The data type is integer.


NoteWhen the value to be set for the ON pulse width-1 is greater than the value calculated by the following equation, the value cannot be set:

ON pulse width (ms) ≤ Pulse unit [Wh/pls] x 60 x 60 x 1000

Secondary rated power [W] x VT ratio x CT ratio x 1.2 x 2


D0052 40052 0033 ON pulse width-1 of electricenergy value

1 to 127Unit: x 10 ms


Default value of ON pulse width-1 of electric energy: 5 (50 ms)

[Example]To set the ON pulse width-1 of electric energy value to 100 ms, write “000A.”


[Command]

[STX] 01010WRW02D0052, 000A, D0072, 0001 [ETX] [CR]

[Response]


Note• The ON pulse width-1 of electric energy value can be set for the UPM100 with pulse outputs.• To set the ON pulse width-1 of electric energy value via communication, set it to 1/10th the

value of the displayed (true) value (e.g., set it to 5 when setting the ON pulse width-1 of electric energy value to 50 ms).

3-7IM 77C01H01-10EN


100/UPM

101 Functions

3


3.2.3 Pulse Unit-2 of Electric Energy

[Procedure]1. Write a pulse unit-2 of electric energy value to the D register in the table below. The data

type is integer.



D0085 40085 0054 Pulse unit-2 of electric energy value

1 to 50,000Unit: x 10 varh/pls


Default value of pulse unit-2 of electric energy: 100 (1000 varh/pls)

[Example]To set the pulse unit-2 of electric energy value to 100 varh/pls, write “000A.” 1

For station number 01, use PC link communication (without checksum) and the randomwrite command as shown below:

1: The data written when the integral resolution (kWh) option is set.

[Command]

[STX] 01010WRW02D0085, 000A, D0072, 0001 [ETX] [CR]

[Response]


Note• The pulse unit-2 of electric energy value can be set for the UPM100 with pulse outputs and the

one with the reactive power/reactive energy measuring function.• To set the pulse unit-2 of electric energy value using the UPM100 with the integral resolution

(kWh) option via communication, set it to 1/10th the value of the displayed (true) value (e.g., set it to 5 when setting the pulse unit-2 of electric energy value to 50 varh/pls).

The value of the UPM100 with the integral resolution (Wh) option should be the same as that of the displayed value.

3-8 IM 77C01H01-10EN


3.2.4 LAG/LEAD/Regenerative Selection for Pulse Output of Electric Energy

[Procedure]1. Write a value for LAG/LEAD/regenerative selection for pulse output of electric energy to

the D register in the table below. The data type is integer.



D0087 40087 0056Value for LAG/LEAD/regenerative selection for output pulse of electric energy

0: LAG PULSE1: LEAD PULSE2: Regenerative PULSE


Default value for LAG/LEAD/regenerative selection for output pulse of electric energy:With the optional reactive power/reactive energy measuring function: 0 (LAG PULSE)Without the optional reactive power/reactive energy measuring function: 2 (Regenerative PULSE)

[Example]To set a value for LAG/LEAD/regenerative selection to 1 (LEAD):


[Command]

[STX] 01010WRW02D0087, 0001, D0072, 0001 [ETX] [CR]

[Response]


NoteThe value for LAG/LEAD/regenerative selection for output pulse of electric energy value can be set for the UPM100 with pulse outputs and the one with the reactive power/reactive energy measuring function. For the UPM100 without the reactive power/reactive energy measuring function, only the regenerative PULSE is available.

3-9IM 77C01H01-10EN


100/UPM

101 Functions

3


3.2.5 ON Pulse Width-2 of Electric Energy

[Procedure]1. Write an ON pulse width-2 of electric energy value to the D register in the table below.



NoteWhen the value to be set for the ON pulse width-2 is greater than the value calculated by the following equation, the value cannot be set:

ON pulse width (ms) ≤ Pulse unit [Wh/pls] x 60 x 60 x 1000

Secondary rated power [W] x VT ratio x CT ratio x 1.2 x 2


D0085 40085 0054 ON pulse width-2 of electric energy value

1 to 127Unit: x 10 ms


Default value of ON pulse width-2 of electric energy: 5 (50 ms)

[Example]To set the ON pulse width-2 of electric energy value to 100 ms, write “000A.”


[Command]

[STX] 01010WRW02D0088, 000A, D0072, 0001 [ETX] [CR]

[Response]


Note• The ON pulse width-2 of electric energy value can be set for the UPM100 with pulse outputs

and the one with the reactive power/reactive energy measuring function.• To set the ON pulse width-2 of electric energy value via communication, set it to 1/10th the

value of the displayed (true) value (e.g., set it to 5 when setting the ON pulse width-2 of electric energy value to 50 ms).

3-10 IM 77C01H01-10EN

3.3 Executing Reset Operations

3.3.1 Remote Reset

[Procedure]1. To execute remote reset, write data to the D register or the I relay in the table below.


D Register Reference No. H No. I relay Description Effective Range

D0059 40059 003A I0010 Remote reset If other than 1: InvalidIf 1: UPM100 is reset

Note• By executing remote reset, the maximum, minimum, and instantaneous voltage and current

values are reset. Remote reset stops while the optional electric energy measuring function is in operation.

• Even if remote reset is executed, data on active energy, reactive energy, and apparent energy and the values set to their parameters will be saved.

• The D register and the I relay in the table above have the same functions.

[Example]To execute remote reset:


[Command]

[STX] 01010WRW01D0059, 0001 [ETX] [CR]

[Response]


NoteAfter remote reset is executed, the micro-computer of the UPM100 is reset. Wait for more than 5 seconds before executing another command.

3-11IM 77C01H01-10EN


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3.3.2 Active Energy Reset

[Procedure]1. To execute active energy reset, write data to the D register or the I relay in the table

below. The data type is integer.


D0060 40060 003B I0011 Reset the active energy(D0001 and D0002)

If other than 1: InvalidIf 1: Active energy is reset

NoteThe D register and the I relay in the table above have the same functions.

[Example]To execute active energy reset:

For station number 01, use PC link communication (without checksum) and the randomwrite command as shown below:

[Command]

[STX] 01010WRW01D0060, 0001 [ETX] [CR]

[Response]


3.3.3 Maximum/Minimum Values Reset

[Procedure]1. To execute maximum/minimum values reset, write data to the D register or the I relay in

the table below. The data type is integer.


D0061 40061 003C I0012Reset the maximum/minimum values (D0023 to D0040)

If other than 1: InvalidIf 1: Maximum/minimum values are reset


[Example]To execute maximum/minimum values reset:


[Command]

[STX] 01010WRW01D0061, 0001 [ETX] [CR]

[Response]


3-12 IM 77C01H01-10EN


3.3.4 Regenerative Energy Reset

[Procedure]1. To execute regenerative energy reset, write data to the D register in the table below.



D0064 40064 003F Reset the regenerative energy(D0067 and D0068)

If other than 1: InvalidIf 1: Regenerative energy is reset

[Example]To execute regenerative energy reset:


[Command]

[STX] 01010WRW01D0064, 0001 [ETX] [CR]

[Response]


3.3.5 Reactive Energy ResetNote

Data can be written to the UPM100 with the optional reactive power/reactive energy measuring function.

[Procedure]1. To execute reactive energy reset, write data to the D register or the I relay in the table



D0093 40093 005C I0015 Reset the reactive energy(D0077 to D0080)

If other than 1: InvalidIf 1: Reactive energy is reset


[Example]To execute reactive energy reset:


[Command]

[STX] 01010WRW01D0093, 0001 [ETX] [CR]

[Response]


3-13IM 77C01H01-10EN


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3.3.6 Apparent Energy Reset

[Procedure]1. To execute apparent energy reset, write data to the D register in the table below.



D0097 40097 0060 Reset the apparent energy(D0083 and D0084)

If other than 1: InvalidIf 1: Apparent energy is reset

[Example]To execute apparent energy reset:


[Command]

[STX] 01010WRW01D0097, 0001 [ETX] [CR]

[Response]


3-14 IM 77C01H01-10EN

3.4 Other Settings

3.4.1 Start of Optional Integration

[Procedure]1. To start optional integration, write data to the D register or the I relay in the table below.



D0062 40062 003D I0013 Start of optional integration (D0003 to D0006)

If other than 1: InvalidIf 1: Optional integration is started


[Example]To start optional integration:


[Command]

[STX] 01010WRW01D0062, 0001 [ETX] [CR]

[Response]


3.4.2 Stop of Optional Integration

[Procedure]1. To stop optional integration, write data to the D register or to the I relay in the table



D0063 40063 003E I0014 Stop of optional integration (D0003 and D0004)

If other than 1: InvalidIf 1: Optional integration is stopped


[Example]To stop optional integration:


[Command]

[STX] 01010WRW01D0063, 0001 [ETX] [CR]

[Response]


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3.4 Other Settings

3.4.3 Start/Stop of Integration

[Procedure]1. To start/stop integration, write data to the D register in the table below. The data type is

integer.


D0053 40053 0034

Active energy (D0001 and D0002)Apparent energy (D0083 and D0084)Regenerative energy (D0067 and D0068)Reactive energy (D0077 to D0080)

0: Integration is started1: Integration is stopped

[Example]To start/stop integration:


<Start>

[Command]

[STX] 01010WRW01D0053, 0000 [ETX] [CR]

[Response]


<Stop>

[Command]

[STX] 01010WRW01D0053, 0001 [ETX] [CR]

[Response]


3-16 IM 77C01H01-10EN

3.4 Other Settings

3.4.4 Active Energy Writing

[Procedure]1. Write an active energy value to the two D registers in the table below. The data type is

integer.2. After writing that value, write “1” to the write status register, D0073.


D0057 40057 0038 Set active energy value (lower 2 bytes)

Refer to the "Note" below.D0058 40058 0039 Set active energy value

(upper 2 bytes)

D0073 40073 0048 Set active energy value write status

If other than 1: Invalid If 1: Writing is executed

[Example]To set the active energy value to 12345:


If 12345 is converted into a hexadecimal value, the value is 0000 3039. Then the order of the upper two bytes and the lower two bytes is reversed → 3039 0000.

[Command]

[STX] 01010WRW03D0057, 3039, D0058, 0000, D0073, 0001 [ETX] [CR]

[Response]


NoteThe set active energy value range of the UPM100 with the integral resolution (kWh) option changes depending on the values of the VT and CT ratios. The table below shows the set value range.

[Secondary Rated Power] x [VT Ratio] x [CT Ratio] Possible Set Value RangeBelow 1 MW 0 to 999999 kWh1 MW to 10 MW 0.00 to 9999.999 MWh10 MW or above 0.0 to 99999.999 MWh

Regardless of the value of [Secondary rated power] x [VT ratio] x [CT ratio], the set active energy value range of the UPM100 with the integral resolution (Wh) option can be set within the range below:

Possible set value range: 0 to 99999999 Wh

NoteThe secondary rated power of the UPM100 changes depending on its model and suffix codes.

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3.4 Other Settings

3.4.5 Apparent Energy Writing

[Procedure]1. Write an apparent energy value to the two D registers in the table below. The data type

is integer.2. After writing that value, write “1” to the write status register, D0098.


D0095 40095 005E Set apparent energy value (lower 2 bytes)

Refer to the “Note” below.D0096 40096 005F Set apparent energy value

(upper 2 bytes)

D0098 40098 0061 Set apparent energy value write status


[Example]To set the apparent energy value to 12345:



[Command]

[STX] 01010WRW03D0095, 3039, D0096, 0000, D0098, 0001 [ETX] [CR]

[Response]


NoteThe set apparent energy value range of the UPM100 with the integral resolution (kWh) option changes depending on the values of the VT and CT ratios. The table below shows the set value range.

[Secondary Rated Power] x [VT Ratio] x [CT Ratio] Possible Set Value RangeBelow 1 MVA 0 to 999999 kVAh1 MVA to 10 MVA 0.00 to 9999.999 MVAh10 MVA or above 0.0 to 99999.999 MVAh

Regardless of the value of [Secondary rated power] x [VT ratio] x [CT ratio], the setapparent energy value range of the UPM100 with the integral resolution (Wh) option can beset within the range below:

Possible set value range: 0 to 99999999 VAh


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3.4 Other Settings

3.4.6 LEAD Reactive Energy WritingNote

A LEAD reactive energy value can be written to the UPM100 with the optional reactive power/reactive energy measuring function.

[Procedure]1. Write a LEAD reactive energy value to the two D registers in the table below. The data

type is integer.2. After writing that value, write “1” to the write status register, D0094.


D0089 40089 0058 Set LEAD reactive energy value (lower 2 bytes)

Refer to the “Note” below.D0090 40090 0059 Set LEAD reactive energy

value (upper 2 bytes)

D0094 40094 005D Set reactive energy value write status


[Example]To set the LEAD reactive energy value to 12345:



[Command]

[STX] 01010WRW03D0089, 3039, D0090, 0000, D0094, 0001 [ETX] [CR]

[Response]


NoteThe set LEAD reactive energy value range of the UPM100 with the integral resolution (kWh) option changes depending on the values of the VT and CT ratios. The table below shows the set value range.

[Secondary Rated Power] x [VT Ratio] x [CT Ratio] Possible Set Value RangeBelow 1 Mvar 0 to 99999 kvarh1 Mvar to 10 Mvar 0.00 to 999.999 Mvarh10 Mvar or above 0.0 to 9999.999 Mvarh

Regardless of the value of [Secondary rated power] x [VT ratio] x [CT ratio], the set LEAD reactive energy value range of the UPM100 with the integral resolution (Wh) option can be set within the range below:

Possible set value range: 0 to 9999999 varh


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3.4 Other Settings

3.4.7 LAG Reactive Energy WritingNote

A LAG reactive energy value can be written to the UPM100 with the optional reactive power/reactive energy measuring function.

[Procedure]1. Write a LAG reactive energy value to the two D registers in the table below. The data



D0091 40091 005A Set LAG reactive energy value (lower 2 bytes)

Refer to the “Note” below.D0092 40092 005B Set LAG reactive energy value

(upper 2 bytes)

D0094 40094 005D Set reactive energy value write status


[Example]To set the LAG reactive energy value to 12345:


If 12345 is converted into a hexadecimal value, the value is 0000 3039. Then the order of the upper two bytes and the lower two bytes is reversed→ 3039 0000.

[Command]

[STX] 01010WRW03D0091, 3039, D0092, 0000, D0094, 0001 [ETX] [CR]

[Response]


NoteThe set LAG reactive energy value range of the UPM100 with the integral resolution (kWh) option changes depending on the values of the VT and CT ratios. The table below shows the set value range.

[Secondary Rated Power] x [VT Ratio] x [CT Ratio] Possible Set Value RangeBelow 1 Mvar 0 to 99999 kvarh1 Mvar to 10 Mvar 0.00 to 999.999 Mvarh10 Mvar or above 0.0 to 9999.999 Mvarh

Regardless of the value of [Secondary rated power] x [VT ratio] x [CT ratio], the set LAG reactive energy value range of the UPM100 with the integral resolution (Wh) option can be set within the range below:

Possible set value range: 0 to 9999999 varh

NoteThe secondary rated power of the UPM100 changes depending on its type.

3-20 IM 77C01H01-10EN

3.4 Other Settings

3.4.8 Regenerative Energy Writing

[Procedure]1. Write a regenerative energy value to the two D registers in the table below. The data



D0069 40069 0044 Set regenerative energy value (lower 2 bytes)

Refer to the “Note” below.D0070 40070 0045 Set regenerative energy value

(upper 2 bytes)

D0071 40071 0046 Set regenerative energy value write status


[Example]To set the regenerative energy value to 12345:



[Command]

[STX] 01010WRW03D0069, 3039, D0070, 0000, D0071, 0001 [ETX] [CR]

[Response]


NoteThe set regenerative energy value range of the UPM100 with the integral resolution (kWh) option changes depending on the values of the VT and CT ratios. The table below shows the set value range.

[Secondary Rated Power] x [VT Ratio] x [CT Ratio] Possible Set Value RangeBelow 1 MW 0 to 999999 kWh1 MW to 10 MW 0.00 to 9999.999 MWh10 MW or above 0.0 to 99999.999 MWh

Regardless of the value of [Secondary rated power] x [VT ratio] x [CT ratio], the set regenerative energy value range of the UPM100 with the integral resolution (Wh) option can be set within the range below:

Possible set value range: 0 to 99999999 Wh


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4 PC Link Communication

4.1 Overview

The use of PC link communication enables the UPM100 to communicate with a device such as a PC, touch panel, or FA-M3(PLC)’s UT link module. Such a device can be used in communication to read/write data from/to D registers or I relays, both of which are internal registers of the UPM100.


040101E.EPS

PLCModel of UT link module

Figure 4-1 Example of Connection for PC Link Communication

Hereafter, PCs are generically called “higher-level devices.”

See AlsoChapters 6 and 7 for information on the D registers and I relays.

In PC link communication, a higher-level device identifies each UPM100 with a station number of 1 to 99.

Note• The UPM100 has data (D register) the unit of which is two words. When 2-word data need to

be written or read, writing or reading operations must be performed for the 2- word data at the same time.

• Even if data written to the D register is out of the effective range, a normal response is returned. The part of the written data within the effective range becomes effective on the UPM100 when the equivalent setting change status is written for that data.

Chapter 4 PC Link Communication

4-2 IM 77C01H01-10EN

4.1 Overview

4.1.1 Configuration of Command

Commands sent from a higher-level device to the UPM100 consist of the following elements.

Number of

Bytes1 2 2 1 3 Variable

length 2 1 1

Element STXStation number (ST-NO)

CPU number

(01)

Time to wait for

response (0)

CommandData

corresponding to command

Checksum ETX CR

(1) (2) (3) (4) (5) (6) (7) (8) (9)

1. STX (Start of Text) This control code indicates the start of a command. The ASCII code is 02 in hexadecimal.

2. Station Number (01 to 99) Station numbers are used by the higher-level device to identify the UPM100 at the communication destination. (These numbers are identification numbers specific to individual UPM100.) P1: Broadcasting mode

3. CPU number This number is fixed to “01”. The ASCII codes are 30 and 31 in hexadecimal.

4. Time to Wait for Response This is fixed to “0”. The ASCII code is 30 in hexadecimal.

5. Command (See section 4.2, “Command and Response”) Specify a command to be issued from the higher-level device.

6. Data Corresponding to Command Specify an internal register (D register or I relay), number of data pieces, and others.

7. Checksum This is required if the protocol with checksum is selected for the RS-485 communication protocol parameter “COMM.”

It converts the ASCII codes of texts between the character next to STX and the character immediately before the checksum into hexadecimal values and adds them byte by byte. It then fetches the single lowermost byte of the added results as the checksum.

This column is required only for PC link communication with checksum. PC link communication without checksum does not require this 2-byte space of ASCII code.

[Example] [STX]01010BRDI0001, 001[ ][ ] [ETX][CR]

Add up the hexadecimal values of the ASCII codes of each text. (“0” : 30, “1” : 31, “B” : 42, “R” : 52, “D” : 44, “I” : 49, “,” : 2C)

30+31+30+31+30+42+52+44+49+30+30+30+31+2C+30+30+31=391

Lowermost two digits of the added results as the checksum. [STX]01010BRDI0001,00191[ETX][CR]

8. ETX (End of Text) This control code indicates the end of a command string. The ASCII code is “03” in hexadecimal.

9. CR (Carriage Return) This control code indicates the end of a command. The ASCII code is “0D” in hexadecimal.

NoteThe control codes “STX”, “ETX”, and “CR” are essential for commands when you create a communication program for PC link communication. Omission of any of them or incorrect order of them results in communication failure.

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4.1 Overview

4.1.2 Configuration of Response

Responses from the UPM100 with respect to a command sent from the higher-level device consist of the elements shown below, which differ depending on the condition of communication; normal or failure.

1. Normal CommunicationWhen communication completes normally, the UPM100 returns a character string “OK” and data corresponding to a command.

No parameter data area for write command.

Number of Bytes 1 2 2 2 Variable length 2 1 1


CPU number

(01)OK Parameter data Checksum ETX CR

2. In the Event of FailureIf communication does not complete normally, the UPM100 returns a character string “ER” and error code (EC1 and EC2). (See subsection 4.1.3, “Response Error Codes”.)

• No response is made in case of an error in station number specification or CPU number specification.

• If a UPM100 cannot receive ETX in a command, response may not be made.

Note: As a countermeasure, provide a timeout process in the communication functions of the higher-level device or in communication programs.

Number of Bytes 1 2 2 2 2 2 3 2 1 1


CPU number

(01)ER EC1 EC2 Command Checksum ETX CR

4-4 IM 77C01H01-10EN

4.1 Overview

4.1.3 Response Error Codes

See Also4.1.2, “Configuration of Response”, for the structure of response in the event of error.

The error codes (EC1) and detailed error codes (EC2) of responses are as follows.

Table 4-1 List of Error Codes EC1

Error Code Meaning Cause(s)

02 Command error • No command exists.• Command not executable

03 Register specification error• No register number exists.• Invalid specification of bit register (I relay) when it is used on a

word basis

04 Out of setpoint range (when in writing operation)

• Any character other than 0 or 1 is used for bit setting.• A value other than hexadecimal values (0 to 9, A to F) has been

specified in word specification.• The position of a start for a data load/save is out of the address

range.

05 Out of data count range • The specification of the number of bits, words, etc. is out of the range of use.

06 Monitor error • An attempt was made to execute monitoring without specifying the monitor (BRS or WRS).

08 Parameter error • An illegal parameter is set.42 Checksum error • The sum does not match the expected value.43 Internal buffer overflow • A data value greater than the specified was received.44 Character reception timeout • The end-of-data or end-of-text character has not been received.

Table 4-2 List of Detailed Error Codes EC2

Error Code (EC1)

Meaning Detailed Error Code (EC2)

03 Register specification error Parameter number where error occurred (HEX) This is the sequence number of a parameter that first resulted in an error when counted from the leading parameter.

e.g.: Register name specification error ↓ [STX] 01010WRW02D0043,3F80,A0044,0000[ETX][CR] Parameter numbers 1 2 3 4 5

[STX] 0101ER0304WRW[ETX][CR] In this case, EC1=03 and EC2=04.

04 Out of setpoint range05 Out of data count range

08 Parameter error

For error codes other than those noted as EC1, there is no EC2 meaning, and 0x00 is returned as a response.

[The Order of Priority for Error Codes]

Order of priority Error codes (EC1)High

Low

44434202

03, 04, 05, 06, 08

If no response is returned:1. A transmission error (overrun, framing or parity) is encountered.2. The station number in the command is wrong. Including broadcast specification.3. CPU address in the command is not “01.”4. The interval between data composing a message is longer than 2 seconds.5. The receiving buffer has overflowed.

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4.1 Overview

4.1.4 Specifying Broadcast

Broadcast addressing allows the corresponding multiple UPM100 to receive the command.

1. In the station number of the command, specify the broadcast address “P1” and execute it.

2. Broadcast addressing works independently of the station number of the UPM100.3. Broadcast addressing is applicable to write commands only.4. No response is returned when broadcast addressing is used.

PC

040110E.EPS

Broadcast data.* No response from slaves


Figure 4-2 Broadcasting

D registers and I relays are used for processing in the UPM100 communication.

[Example of Starting Optional Integrations]For station number 01, use PC link communication (without checksum) and the random write command as shown below:

[STX]P1010WRW01D0062,0001[ETX][CR]


D0062 40062 003D Start of optional integrationIf other than 1: InvalidIf 1: Optional integration(D0003 to D0006) starts

4-6 IM 77C01H01-10EN

4.2 Command and Response

The following are the lists of commands available in PC link communication. The details of them are explained in the description of each command.

1. Bit-basis Access Commands Dedicated to I Relays

Command Description Number of bits handledBRD Bit-basis read 1 to 164 bitsBWR Bit-basis write 1 to 164 bitsBRR Bit-basis, random read 1 to 32 bitsBRW Bit-basis, random write 1 to 32 bitsBRS Specifies I relays to be monitored on a bit-by-bit basis. 1 to 32 bitsBRM Bit-basis monitoring —

2. Word-basis Access Commands

Command Description Number of words handledWRD Word-basis read 1 to 64 wordsWWR Word-basis write 1 to 64 wordsWRR Word-basis, random read 1 to 32 wordsWRW Word-basis, random write 1 to 32 words

WRS Specifies internal registers to be monitored on a word-by-word basis. 1 to 32 words

WRM Word-basis monitoring —

3. Information Commands

Command Description Number of monitors handledINF6 Reads model, suffix codes, and version. 1INF7 Reads the maximum value of CPU. 1

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BRD Reads I relays on a bit-by-bit basis

FunctionReads the ON/OFF statuses of a sequence of contiguous I relays by the specified number of bits, starting at a specified I relay number.

• The number of bits to be read at a time is 1 to 164.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing

communication without checksum, do not include the 2-byte checksum element in the command.

Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 5 1 3 2 1 1

Command element STX

Station number (ST-NO)

CPU number

(01)

Time to wait for

response (0)

BRD I relay number

Comma or

space

Number of bits

(n)Checksum ETX CR

Number of Bytes 1 2 2 2 1 1 1 … 1 2 1 1

Response element STX


CPU number

(01)OK d1 d2 d3 … dn Checksum ETX CR

The response is “0” when the status is OFF or “1” when ON. dn: read data of the specified number of bits (n = 1 to 164)( dn = 0 (OFF) ) dn = 1 (ON)

ExampleRead the input overrange for the input full scale (relay symbol: IN_OVER) flag of the UPM100 at station number 01.

The following command reads the input overrange flag for the input full scale (I0001).

[Command]

[STX]01010BRDI0001, 00191 [ETX] [CR]

The following response is returned with respect to the above command.

[Response]

[STX]0101OK15D [ETX] [CR] I0001 has been ON since 1 was returned.

4-8 IM 77C01H01-10EN


BWR Writes data into I relays on a bit-by-bit basis

FunctionWrites ON/OFF data into a sequence of contiguous I relays by the specified number of bits, starting at a specified I relay number.

• The number of bits to be written at a time is 1 to 164.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes a checksum function. When performing

communication without checksum, do not include the 2-byte checksum element in the command.


Command element STX


CPU number

(01)

Time to wait for

response (0)

BWR I relay number

Comma or

space

Number of bits

(n)

Comma or

spaced1 d2

Command (continued)

… 1 2 1 1

…

dn

Checksum

ETX

CR

Write information is “0” to set OFF or “1” to set ON. dn: write data of the specified number of bits (n = 1 to 164)( dn = 0 (OFF) ) dn = 1 (ON)

Number of Bytes 1 2 2 2 2 1 1



CPU number

(01)OK Checksum ETX CR

ExampleSet the active energy reset (relay symbol: Wh RST) flag of the UPM100 at station number01 to ON.

The following command writes “1” into the active energy reset (I0011).

[Command]

[STX]01010BWRI0011, 001, 1B0 [ETX] [CR]

“OK” is returned in response to the above command.

[Response]

[STX]0101OK5C[ETX] [CR]

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BRR Reads I relays on a bit-by-bit basis in a random order

FunctionReads the ON/OFF statuses of the individual I relays specified in a random order by the specified number of bits.

• The number of bits to be read at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes a checksum function. When performing

communication without the checksum, do not include the 2-byte checksum element in the command.

Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 2 5 1 5 1

Command element STX

Stationnumber(ST-NO)

CPU number

(01)

Time to wait for

response (0)

BWRNumber of bits

(n)

I relay number

1

Comma or

space

I relay number

2

Comma or

space

Command (continued)

… 5 2 1 1

…I relay

number n

Checksum ETX CR

Number of Bytes 1 2 2 2 1 1 … 1 2 1 1



CPU number

(01)OK d1 d2 … dn Checksum ETX CR

The response is “0” when the status is OFF or “1” when ON. dn: read data of the specified number of bits (n = 1 to 32)( dn = 0 (OFF) ) dn = 1 (ON)

ExampleRead the user area (relay symbol: USERAREA) flag of the UPM100 at station number 01.The following command reads the user area (I0101 and I0103) flag.

[Command]

[STX]01010BRR02I0101, I010381 [ETX] [CR]


[Response]

[STX]0101OK108D [ETX] [CR] User area (I0101) is ON, and user area (I0103) is OFF.

4-10 IM 77C01H01-10EN


BRW Writes data into I relays on a bit-by-bit basis in a random order

FunctionWrites ON/OFF data into the individual I relays specified in a random order by the specified number of bits.

• The number of bits to be written at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing



Command element STX


CPU number

(01)

Time to wait for

response (0)

BWRNumber of bits

(n)

I relay number

1

Comma or

spaced1

Comma or

space

I relay number

2

Command (continued)

1 1 1 … 5 1 1 2 1 1

Comma or

spaced2

Comma or

space…

I relay number

n

Comma or

spacedn Checksum ETX CR

Write information is “0” to set OFF or “1” to set ON. dn: write data of the specified number of bits (n = 1 to 32)( dn = 0 (OFF) ) dn = 1 (ON)


Responseelement STX


CPU number


ExampleExecute the active energy reset (relay symbol: Wh RST), maximum and minimum values reset (relay symbol: MAX RST), and reactive energy reset (relay symbol: kVarh RST) of the UPM100 at station number 01.

The following command writes “1” into the active energy reset (I0011), maximum and minimum values reset (I0012), and reactive energy reset (I0015).

[Command]

[STX]01010BRW03I0011, 1, I0012, 1, I0015, 1D5 [ETX] [CR]


[Response]

[STX]0101OK5C [ETX] [CR]

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BRS Specifies I relays to be monitored on a bit-by-bit basis

FunctionSpecifies the numbers of I relays to be monitored on a bit-by-bit basis. Note that this command simply specifies I relays. Actual monitoring is performed by the BRM command after the I relay numbers are specified with this command.

When the volume of data is large and you wish to increase the communication rate, it is effective to use a combination of the BRS and BRM commands rather than the BRR command.

• The number of registers to be specified at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing



Command element STX


CPU number

(01)

Time to wait for

response (0)

BRSNumber of bits

(n)

I relay number

1

Comma or

space

I relay number

2

Comma or

space

Command (continued)

… 5 2 1 1

…I relay

number n

Checksum ETX CR




CPU number


ExampleSpecify that the use area (relay symbol: USERAREA) flag of the UPM100 at station number 01 is to be monitored. (This command is used simply for specifying registers.)

The following command specifies the user area (I0101 and I0103) to be monitored.

[Command]

[STX]01010BRS02I0101, I01037F [ETX] [CR]


[Response]

[STX]0101OK5C [ETX] [CR]

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BRM Monitors I relays on a bit-by-bit basis

FunctionReads the ON/OFF statuses of the I relays that have been specified in advance by the BRS command.

• Before executing this command, the BRS command must always be executed to specify which I relays are to be monitored. If no relay has been specified, error code 06 is returned.

• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing


Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 2 1 1

Command element STX


CPU number

(01)

Time to wait for

response (0)

BRM Checksum ETX CR

Number of Bytes 1 2 2 2 1 1 1 … 1 2 1 1



CPU number

(01)OK d1 d2 d3 … dn Checksum ETX CR

The response is “0” when the status is OFF and “1” when ON. dn: read data of the number of bits specified by the BRS command (n = 1 to 32)( dn = 0 (OFF) ) dn = 1 (ON)

ExampleWhen the user area (relay symbol: USERAREA) flag of the UPM100 at station number 01 has been specified to be monitored:

(This command reads the statuses of the registers specified by the BRS command.)

[Command]

[STX]01010BRMD3 [ETX] [CR]


[Response]

[STX]0101OK10BD [ETX] [CR] “1” is set for the user area (I0101) and “0” is set for the user area (I0103).


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WRD Reads D registers and I relays on a word-by-word basis

FunctionReads a sequence of contiguous register information on a word-by-word basis by the specified number of words, starting at the specified register number.

• The number of words to be read at a time is 1 to 64.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing


• Specify the leading I relay number to read I relays on a word-by-word basis. Data of 16 bits starting at the leading I relay are to be read.


Command element STX


CPU number

(01)

Time to wait for

response (0)

WRD Registernumber

Comma or

space

Numberof words

(n)Checksum ETX CR

Number of Bytes 1 2 2 2 4 4 … 4 2 1 1



CPU number

(01)OK dddd1 dddd2 … ddddn Checksum ETX CR

The response is returned in a 4-digit character string (0000 to FFFF) in hexadecimal. ddddn: read data of the specified number of words( ddddn = character string in hexadecimal ) n = 1 to 64 words

ExampleRead the active energy (register symbol: kWh L and kWh H) of the UPM100 at station number 01.

The following command reads the active energy (D0001 and D0002).

[Command]

[STX]01010WRDD0001, 02A2 [ETX] [CR]

The data of active energy (2 words) is returned in response to the above command.

[Response]

[STX]0101OK7840017DA9 [ETX] [CR] 25000000 [kWh] in decimal. See the Note below.

Note: To use the response data as the reading, reverse the order of the upper and lower words. Hex 7840 017D → (reversed) → Hex 017D 7840 → Decimal 25000000


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WWR Writes data into D registers and I relays on a word-by-word basis

FunctionWrites information into a sequence of contiguous registers on a word-by-word basis by the specified number of words, starting at the specified register number.

• The number of words to be written at a time is 1 to 64.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing


• Specify the leading I relay number to write data into I relays on a word-by-word basis. Data of 16 bits starting at the leading I relay are to be written.


Command element STX


CPU number

(01)

Time to wait for

response (0)

WWR Registernumber

Comma or

space

Number of words

(n)

Comma or

spacedddd1

Command (continued)

4 … 1 2 1 1

dddd2 … ddddn

Checksum ETX CR

Write information is specified in a 4-digit character string (0000 to FFFF) in hexadecimal. ddddn: write data of the specified number of words( ddddn = character string in hexadecimal ) n = 1 to 64 words




CPU number


ExampleWrite the floating point data “00004120” into the VT ratio (register symbol: VT L and VT H) and CT ratio (register symbol: CT L and CT H) of the UPM100 at station number 01.

[Command]

[STX]01010WWRD0043,04,000041200000412097[ETX][CR]


[Response]

[STX]0101OK5C[ETX][CR]

Note: VT ratio: 4-byte floating-point hex data 0000 4120 → (reversed) → Hex 4120 0000 → Decimal 10 CT ratio: 4-byte floating-point hex data 0000 4120 → (reversed) → Hex 4120 0000 → Decimal 10


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WRR Reads D registers and I relays on a word-by-word basis in random order

FunctionReads the statuses of the individual registers, on a word-by-word basis, specified in a random order by the specified number of words.

• The number of words to be read at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing




Command element STX


CPU number

(01)

Time to wait for

response (0)

WRRNumber of words

(n)

Registernumber

1

Comma or

space

Registernumber

2

Comma or

space

Command (continued)

… 5 2 1 1

…Register number

(n)Checksum ETX CR

Number of Bytes 1 2 2 2 4 4 … 4 2 1 1



CPU number


The response is returned in a 4-digit character string (0000 to FFFF) in hexadecimal. ddddn: read data of the specified number of words( ddddn = character string in hexadecimal ) n = 1 to 32 words

ExampleRead the instantaneous voltage 1 (register symbol: V1 L and V1 H) and instantaneous current 1 (register symbol: I1 L and I1 H) of the UPM100 at station number 01.

The following command reads the instantaneous voltage 1 (D 0009 and D0010) and instantaneous current 1 (D0015 and D0016).

[Command]

[STX]01010WRR04D0009,D0010,D0015,D0016FC[ETX][CR]

The data 800V for the instantaneous voltage 1 and 50A for the instantaneous current 1 arereturned in response to the above command.

[Response]

[STX]0101OK000044480000424882[ETX][CR] 800 [V] and 50 [A] in decimal. See the Note below.

Note: To use the response data as the reading, reverse the order of the upper and lower words. Instantaneous voltage 1: floating-point hex data 0000 4448→ (reversed) → Hex 4448 0000 → Decimal 800 Instantaneous current 1: floating-point hex data 0000 4248→ (reversed) → Hex 4248 0000 → Decimal 50


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WRW Writes data into D registers and I relays on a word-by-word basis in random order

FunctionWrites register information specified for each register into the registers specified in a random order by the specified number of words.

• The number of words to be written at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing


• Specify the leading I relay number to write data into I relays on a word-by-word basis. Data of 16 bits starting at the leading I relay are to be written.


Command element STX


CPU number

(01)

Time to wait for

response (0)

WRWNumber of words

(n)

Registernumber

1

Comma or

spacedddd1

Comma or

space

Command (continued)

5 1 4 … 5 1 4 2 1 1

Register number

2

Comma or

spacedddd2 …

Register number

n

Comma or

spaceddddn Checksum ETX CR

Write information is specified in a 4-digit character string (0000 to FFFF) in hexadecimal. ddddn: repetition of register numbers and write information of the specified number of words( ddddn = character string in hexadecimal ) n = 1 to 32 words




CPU number


ExampleWrite “1” into the remote reset (register symbol: RMT RST), active energy reset (register symbol: kWh RST), reactive energy reset (register symbol: kVarh RST), and apparent energy reset (register symbol: kVAh RST) of the UPM100 at station number 01.

The following command writes “1” into the remote reset (D0059), active energy reset (D0060), reactive energy reset (D0093), apparent energy reset (D0097), and regenerative energy reset (D0064).

[Command]

[STX]01010WRW04D0059,0001,D0060,0001,D0093,0001,D0097,0001,D0064,0001F6

[ETX][CR]


[Response]



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WRS Specifies the D registers and I relays to be monitored on a word-by-word basis

FunctionSpecifies the numbers of the registers to be monitored on a word-by-word basis. Note that this command simply specifies the registers. Actual monitoring is performed by the WRM command after the register numbers are specified by this command.

If the volume of data is large and you wish to increase the communication rate, it is effective to use a combination of the WRS and WRM commands rather than the WRR command. If the power supply is turned off, the register numbers specified will be erased.

• The number of words to be specified at a time is 1 to 32.• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing




Command element STX


CPU number

(01)

Time to wait for

response (0)

WRSNumber of words

(n)

Registernumber

1

Comma or

space

Registernumber

2

Comma or

space

Command (continued)

… 5 2 1 1

…Register number

nChecksum ETX CR




CPU number


ExampleSpecify that the instantaneous active power (register symbol: W L and W H) of the UPM100 at station number 01 is to be monitored. (This command simply specifies the registers.) The following command specifies the instantaneous active power (D0007 and D0008) to be monitored.

[Command]

[STX]01010WRS02D0007,D000893[ETX][CR]


[Response]



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WRM Monitors the D register and I relays on a word-by-word basis

FunctionReads the information of the registers that have been specified in advance by the WRS command.

• Before executing this command, the WRS command must always be executed to specify which registers are to be monitored. If no register has been specified, error code 06 is returned.

• For the format of response in the event of failure, see subsection 4.1.2.• The command shown below includes the checksum function. When performing


Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 2 1 1

Command element STX


CPU number

(01)

Time to wait for

response (0)

WRM Checksum ETX CR

Number of Bytes 1 2 2 2 4 4 … 4 2 1 1



CPU number


The response is returned in a 4-digit character string (0000 to FFFF) in hexadecimal. ddddn: read data of the number of words specified by the WRS command( ddddn = character string in hexadecimal ) n = 1 to 32 words

ExampleMonitor the instantaneous active power (register symbol: W L and W H) of the UPM100 at station number 01. (This command reads the status of the register specified by the WRS command.)

[Command]

[STX]01010WRME8[ETX][CR]

The data 2500 is returned in response to the above command.

[Response]

[STX]0101OK0000451CF9[ETX][CR]

Note: To use the response data as the reading, reverse the order of the upper and lower words. Instantaneous active power: floating-point hex data 0000 451C→ (reversed) → Hex 451C 0000 → Decimal 2500


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INF6 Reads the model, suffix codes, and version information

FunctionReads the model, suffix codes, and version number of the UPM100.

• For the format of response in the event of failure, see subsection 4.1.2.

Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 1 2 1 1

Command element STX


CPU number

(01)

Time to wait for

response (0)

INF 6 Checksum ETX CR

Number of Bytes 1 2 2 2 11 5 4 4



CPU number

(01)OK

Model code: UPM100 □□□□□ (Note 1)

Version and revision numbers (Note 2)

Start register specified

for readout refreshing*

Number of registers specified

for readout refreshing*

Response (continued)

4 4 2 1 1

Start register specified for write

refreshing*

Number of registers specified for write

refreshing*

Checksum ETX CR

The * mark indicates fields the FA-M3’s UT link module refers to.

Note 1: Model and suffix codes information UPM100 - □□□□□ - 20 <Model> <Suffix codes> Example: UPM100-443□2-20

0: without the optional communication function 4: with the wireless communication (with serial gateway function) <For the Republic of Korea>

Note 2: Version and revision numbers

<Revision number> <Version number> Example: _0102

ExampleRead the model information of the UPM100 at station number 01.

Command]

[STX]01010INF605[ETX][CR]

The UPM100-44302-20 is returned in response to the above command. Phase and wire type: Three-phase 4-wire, Rated input voltage/current: 127V/5A AC, Output function: with display function, with pulse output, Optional communication function: 920 MHz wireless communication, Optional measuring function: Reactive power/energy

[Response]

[STX]0101OKUPM10044342_01020001002200010000B5[ETX][CR]


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INF7 Reads the maximum value of CPU

FunctionThe maximum value of CPU of a station in PC link communication is returned.

• For the format of response in the event of failure, see subsection 4.1.2.

Command/Response (for normal operation)Number of Bytes 1 2 2 1 3 1 2 1 1

Command element STX


CPU number

(01)

Time to wait for

response (0)

INF 7 Checksum ETX CR

Number of Bytes 1 2 2 2 1 2 1 1



CPU number

(01)OK

CPU maximum

value (Note1)

Checksum ETX CR

Note 1: The maximum value of CPU for universal power monitor is “1.”

ExampleRead the CPU number of the UPM100 at station number 01.

[Command]

[STX]01010INF706[ETX][CR]

The data 1 is returned in response to the above command.

[Response]

[STX]0101OK18D[ETX][CR]


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4.3 Communication with Higher-level Devices

Higher-level devices are those capable of using the PC link communication protocol.

4.3.1 Communication with FA-M3 (UT Link Module)

Communication with FA-M3 is achieved by simply connecting the UPM100 to a UT link module using the PC link communication protocol. Set the communication conditions of the UPM100 identical to those of the UT link module.

040130E.EPS

PLC


Model of UT link module: F3LC51-2N

Figure 4-3 Communication with UT Link Module

The UT link module function has the following two modes, which allow you to communicate with FA-M3 without being aware of it. For more information, see the optionally available “UT Link Module User’s Manual (IM 34M06H25-01E).”

1. Automatic modeThis mode enables the instruments’ fixed devices (those that cannot be specified by the user) to be constantly refreshed by reading from and/or writing to them. The fixed devices are D0001 to D0022, and the read areas cannot be written to.

2. Manual mode (constant access)This mode reads and refreshes the instrument’s devices (those that can be specified by the user).

See AlsoThe devices mentioned here are D registers and I relays. For more information on D registers and I relays, see Chapters 6 and 7.

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FA-M3’s UT Link Module Setup Procedure (Example)

This section explains the procedure for setting up the FA-M3’s UT link module when the “Automatic mode” is used.

1. Setting Up the UT Link ModuleBefore following the procedure, always make sure that the FA-M3’s UT link module isturned off. Then, open the inner cover and follow the setup steps described below.

Configure the DIP switch of the UT link module as shown below:

Switch No. Status DescriptionSW1 ON Data length: 8 bitsSW2, SW3 ON Parity: none (default: even)SW4 OFF Stop bit: oneSW5 OFF Checksum: noneSW6 ON Termination character: yes (CR)SW7 ON Mode: Automatic modeSW8 OFF Not used.

Set the Baud Rate switch to 9600 bps.Set the Communication Mode switch to 7 (Normal).

2. Setting Up the UPM100Set the communication conditions of the UPM100 as shown below:

For details on how to set the conditions, see the user’s manual of Model UPM100 Universal Power Monitor <Initial Setup Operations> or “1.2 Notes on Setting RS-485 Communication Conditions” in this manual.

Parameter DescriptionCommunication protocol PC link communication (without checksum)Data length 8 bitsParity NoneStop bit OneBaud rate 9600 bps

3. Turn on the FA-M3.

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4.3.2 Communication with Touch Panel

Communication with a touch panel is achieved using the PC link communication protocol. Set the communication conditions of the UPM100 identical to those of the touch panel.

040304E.EPS

Touch panel


Figure 4-4 Communication with Touch Panel

For more information, refer to the user’s manual of the touch panel to be connected.

Model Description

Digital’s Pro-faceGP-570

(*1)GP-2300

Note 1: For Digital’s graphic panels, contact Digital Corp. directly.Note 2: The system data area should be assigned to D0101 to D0150 of user area.*1: Display devices differ depending on the model.

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5 MODBUS Communication

5.1 Overview

The use of MODBUS communication enables the UPM100 to communicate with a device such as a PC, PLC (sequencer), or touch panel. Such a device can be used in communication to read/write data from/to D registers which are internal registers of the UPM100. Access to the I relays is impossible.

Hereafter, PCs are generically called “higher-level devices.”

PC

050101E.EPS


Figure 5-1 Example of Connection for MODBUS Communication

See AlsoChapter 6 for information on the D registers.

Chapter 5 MODBUS Communication

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5.1 Overview

For MODBUS communication with the UPM100, we provide the ASCII mode and RTU mode (binary system) for the transmission mode.

Table 5-1 ASCII and RTU Modes

Item ASCII Mode RTU ModeNumber of data bits 7 bits (ASCII), 8 bits (ASCII) 8 bits (binary)Message start mark : (colon) Not necessaryMessage end mark CR+LF (*2) Not necessaryMessage length (*1) 2N+1 NData time intervals 1 second or less 24 bit time or less (*3)Error detection Longitudinal redundancy check: LRC Cyclic redundancy check: CRC-16

*1: When message length in the RTU mode is assumed to be “N”, message length in ASCII mode is “2N+1”.

*2: LF is a synchronization character indicating that the UPM100 is ready to accept the next signal. In the RTU mode, synchronization is achieved during the time interval between characters. If there is a period of time equivalent to 3.5 characters before the next character is received, the message being received next is recognized as a new frame.

*3: Theoretically, points of termination are detected at an interval of 24-bit time in the RTU mode. In the case of the UPM100 however, this detection is carried out at a time interval in multiples of 0.833 milliseconds. If the Baud rate is 9600 bps, the time interval is 1 ÷ 9600 x 24 seconds or shorter.

In MODBUS communication, a higher-level device identifies each UPM100 with a stationnumber of 1 to 99.

Note• The UPM100 has data (D register) the unit of which is two words. When 2-word data need to be

written or read, writing or reading operations must be performed for the 2-word data at the same time.

• Even if data written to the D register is out of the effective range, a normal response is returned.

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5.1 Overview

5.1.1 Configuration of Message

Messages sent from the higher-level device to the UPM100 consist of the following elements.

Element Start of Message Mark

Station Number (ST-NO)

Function Code Data Error

CheckEnd of

Message MarkNumber of bytes in RTU mode None 1 1 2n

(variable) 2 None

Number of bytes in ASCII mode 1 2 2 4n

(variable) 2 2

(1) (2) (3) (4) (5) (6)

(1) Start of Message MarkThis mark indicates the start of a message. Note that only ASCII mode requires a colon (:).

(2) Station Number (01 to 99)Station numbers are used by the higher-level device to identify the UPM100 at the communication destination. (These numbers are identification numbers specific to individual UPM100, which are expressed in hexadecimal in the message.)

(3) Function Code (See section 5.2, “Message and Response”)This element specifies a command (function code) from the higher-level device.

(4) DataThis element specifies D register numbers, the number of D registers, parameter values, or others in accordance with the function code. (It is expressed in hexadecimal in the message.)

(5) Error CheckIn RTU mode: Carried out by the cyclic redundancy check (CRC-16) system. In ASCII mode: Carried out by the longitudinal redundancy check (LRC) system.

(6) End of Message MarkThis mark indicates the end of a message. Note that only ASCII mode requires CR + LF.

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5.1.2 Specifying D Registers

Specification of D registers using commercially available SCADA or other softwareand specification of D registers for messages used in a customer-created communicationprogram are different. Take note of this.

1. When using commercially available SCADA or other software, specify a “reference number” in which “D,” the first character of a D register number, is replaced by “4.”

2. For a customer-created communication program, specify a value in hexadecimal that is obtained by subtracting 40001 from a reference number.

Example: Specifying “D0043”1. For messages when using commercially available SCADA or other software, specify the

reference number “40043.”

2. For messages in the customer-created communication program, specify “002A,” the hexadecimal number of value 42 obtained by subtracting 40001 from the reference number.

5.1.3 Checking Errors

MODBUS communication has two modes, i.e., the ASCII mode which is communication based on ASCII characters and the RTU mode which is binary code communication. These modes use different error-checking methods.

ASCII Mode

In the ASCII mode, errors are checked by means of an LRC longitudinal redundancy check.

The LRC value is the two’s complement of the sum obtained by adding up data byte by byte, from the station number to the last data item, excluding “:”, “CR” and “LF”. Ignore the carry that may occur at the upper digit when adding up the data.

Example:The method of calculating the LRC for the [:]1103002A0004[LRC][CR][LF] command for reading a series of four D registers of the device at station number 17, starting with the D0043 (VT ratio) register, is as follows:

[1] Station number 17 is 11 in hexadecimal. Change the data to byte-by-byte hex data → 11,03,00,2A,00,04. (In the MODBUS ASCII message, this data is represented by the ASCII code as two bytes, i.e., H 31 and H 31.)

[2] Add up the byte-by-byte hex data on a byte-by-byte basis. → 11 + 03 + 00 + 2A + 00 + 04 = 42

[3] Find the two’s complement of the lower one byte of the data thus added up → BE 01000010 (0x42) → 10111101 (complement) + 1 = 10111110 (BE)

5.1 Overview

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RTU Mode

In the RTU mode, errors are checked by means of a CRC-16 cyclic redundancy check. The CRC-16 value is the 16-bit remainder when the value obtained by concatenating the 8 bits of all blocks (from the station number to the last data item) of a message, excluding the start bit, stop bit and parity bit, is divided by a predetermined 17-bit binary number.

Example of CRC-16 CalculationWhen executing function code 03 (read the status of the specific coil) to read the status from the slave at station number 11 (0Bh), send the 0B03002A0004 command.

[1] The default is FFFF. Find the XOR value of this default and the first character (= station number 11).

[2] Refer to the lower byte of the result of executing the function code (or the upper byte, if the result is regarded as a block of text). From the table, obtain the value corresponding to that byte. Since the result is F4h in this example, you refer to the 244th value in the table and obtain 8701h.

[3] Find the XOR value of the upper byte of the XOR operation in step [1] and the result of step [2]. This value is the first character of the CRC-16 calculation.

[4] Using the result of step [3] (remainder) as the next initial value, make the same calculation to evaluate the second character (function code 03).

050104E.EPS

Initial value FF FFStation number 0B

---------XOR FF F4Reference to table 87 01

--------XOR 87 FEFunction code 03

--------XOR 87 FDReference to table 81 C1

--------XOR

•••

•••

81 46

XOR E5 9ELast character 04

--------XOR E5 9AReference to table 6B 80

--------Resulting error 6B 65

Convert the hex value to a decimal value, find the corresponding number in Table 5.2, and substitute the number into the formula. In the example shown on the left, hex value F4 is converted to decimal value 244. From Table 5.2, the number corresponding to 244 proves to be 8701. This number is substituted into the formula.

[5] Repeat steps [1] to [4] to perform the calculation up to the last character string “04”.

[6] Reverse the order of the upper and lower bytes of 6B65 and append 656B to the end of the character string as the error code. 0B03002A0004656B

First reverse the order of the upper and lower bytes of the calculated result, then compare the value with the received data or store the value in the transmission buffer.

5.1 Overview

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Table 5-2 Results of Performing CRC on 0th to 255th Values at A001h

Number 0 1 2 3 4 5 6 7Result 0000 C0C1 C181 0140 C301 03C0 0280 C241

Number 8 9 10 11 12 13 14 15Result C601 06C0 0780 C741 0500 C5C1 C481 0440

Number 16 17 18 19 20 21 22 23Result CC01 0CC0 0D80 CD41 0F00 CFC1 CE81 0E40

Number 24 25 26 27 28 29 30 31Result 0A00 CAC1 CB81 0B40 C901 09C0 0880 C841

Number 32 33 34 35 36 37 38 39Result D801 18C0 1980 D941 1B00 DBC1 DA81 1A40

Number 40 41 42 43 44 45 46 47Result 1E00 DEC1 DF81 1F40 DD01 1DC0 1C80 DC41

Number 48 49 50 51 52 53 54 55Result 1400 D4C1 D581 1540 D701 17C0 1680 D641

Number 56 57 58 59 60 61 62 63Result D201 12C0 1380 D341 1100 D1C1 D081 1040

Number 64 65 66 67 68 69 70 71Result F001 30C0 3180 F141 3300 F3C1 F281 3240

Number 72 73 74 75 76 77 78 79Result 3600 F6C1 F781 3740 F501 35C0 3480 F441

Number 80 81 82 83 84 85 86 87Result 3C00 FCC1 FD81 3D40 FF01 3FC0 3E80 FE41

Number 88 89 90 91 92 93 94 95Result FA01 3AC0 3B80 FB41 3900 F9C1 F881 3840

Number 96 97 98 99 100 101 102 103Result 2800 E8C1 E981 2940 EB01 2BC0 2A80 EA41

Number 104 105 106 107 108 109 110 111Result EE01 2EC0 2F80 EF41 2D00 EDC1 EC81 2C40

Number 112 113 114 115 116 117 118 119Result E401 24C0 2580 E541 2700 E7C1 E681 2640

Number 120 121 122 123 124 125 126 127Result 2200 E2C1 E381 2340 E101 21C0 2080 E041

Number 128 129 130 131 132 133 134 135Result A001 60C0 6180 A141 6300 A3C1 A281 6240

Number 136 137 138 139 140 141 142 143Result 6600 A6C1 A781 6740 A501 65C0 6480 A441

Number 144 145 146 147 148 149 150 151Result 6C00 ACC1 AD81 6D40 AF01 6FC0 6E80 AE41

Number 152 153 154 155 156 157 158 159Result AA01 6AC0 6B80 AB41 6900 A9C1 A881 6840

Number 160 161 162 163 164 165 166 167Result 7800 B8C1 B981 7940 BB01 7BC0 7A80 BA41

Number 168 169 170 171 172 173 174 175Result BE01 7EC0 7F80 BF41 7D00 BDC1 BC81 7C40

Number 176 177 178 179 180 181 182 183Result B401 74C0 7580 B541 7700 B7C1 B681 7640

Number 184 185 186 187 188 189 190 191Result 7200 B2C1 B381 7340 B101 71C0 7080 B041

Number 192 193 194 195 196 197 198 199Result 5000 90C1 9181 5140 9301 53C0 5280 9241

Number 200 201 202 203 204 205 206 207Result 9601 56C0 5780 9741 5500 95C1 9481 5440

Number 208 209 210 211 212 213 214 215Result 9C01 5CC0 5D80 9D41 5F00 9FC1 9E81 5E40

Number 216 217 218 219 220 221 222 223Result 5A00 9AC1 9B81 5B40 9901 59C0 5880 9841

Number 224 225 226 227 228 229 230 231Result 8801 48C0 4980 8941 4B00 8BC1 8A81 4A40

Number 232 233 234 235 236 237 238 239Result 4E00 8EC1 8F81 4F40 8D01 4DC0 4C80 8C41

Number 240 241 242 243 244 245 246 247Result 4400 84C1 8581 4540 8701 47C0 4680 8641

Number 248 249 250 251 252 253 254 255Result 8201 42C0 4380 8341 4100 81C1 8081 4040

5.1 Overview

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5.1.4 Responses from Slaves

The UPM100 receives a command message from the higher-level device. If the received command message is found to be normal and directed at the station number of the UPM100 itself, the UPM100 concludes the content of the message to be normal. Thus, the UPM100 enters the phase of executing message processing, deciphers the content of the command message, and processes with the message.

The UPM100 does not execute message processing, however, if the received command message is found to be abnormal. In that case, the UPM100 either ignores the received message or creates a response message telling the received message is erroneous.

After receiving a normal command message and executing a given process, the UPM100 creates and sends a response message to which error check data appropriate for the command function code of the higher-level device is added.

Responses to Normal Messages

For a loop back function or a function for writing to a single register, the UPM100 returns the received command message as a response message.

For a function for writing to multiple registers, the UPM100 returns part of the received command message as the response message.

For a readout function, the UPM100 adds the read data to the ends of the station number and function code of the received command message, and returns the message as the response message.

5.1 Overview

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Responses to Abnormal Messages

If there is any failure other than transmission errors, the UPM100 returns the following response message without executing any process:

ElementStart of

Message Mark (:)


Function Code (*1)

Error Code

Error Check [CR][LF]

Number of bytes in RTU mode None 1 1 1 2 NoneNumber of bytes in ASCII mode 1 2 2 2 2 2

*1: The value of “Function code (Hex) + 80 (Hex)” for the Function code.

The following table summarizes details on the error codes.

Error Code Meaning Cause01 Function code error Function code does not exist.02 Abnormal D register number D register number out of the range is specified.03 Abnormal number of D registers Number of D registers out of the range is specified.

The UPM100 does not regard it as an error even if there is any unused register among those with consecutive register numbers specified by a readout function; rather, the UPM100 returns a value of 0 in this case.

The UPM100 returns the error code 02 or 03 if the specified consecutive registers are made to fall outside the given range by the number of registers specified, even though the D-register start number was initially within the range. (Depend on the function code.)

Cases when There Are No Responses to Transmitted Messages• A transmission error (overrun, framing, parity, LRC or CRC-16 error) is encountered.• The station number in the command message is wrong.• The interval between data composing a message is longer than 2 seconds.• The station number is “00” (broadcast specification).• The receiving buffer has overflowed.

Note: As a measure against the abovementioned problems, add a time-out process to the communication function or program of the higher-level device.

5.1 Overview

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5.1.5 Specifying Broadcast

Broadcast addressing allows the corresponding multiple UPM100 to receive the command.

1. In the station number of the command, specify the broadcast address “00” and execute it.

2. Broadcast addressing works independently of the station number of the UPM100.3. Broadcast addressing is applicable to write commands only.4. No response is returned when broadcast addressing is used.

050108E.EPS

PC


* No response from slaves

Figure 5-2 Broadcasting

D registers are used for processing in the UPM100 communication.

[Example]Write “0001” into the D0059 (Remote reset) using broadcast command.

[Message][:]0006003A0001BF[CR][LF]

“00”: broadcast addressing, “06”: function code 06,“003A”: D register specification 58, “0001”: data 0001, “BF”: error check* Numbers in quotation mark are hexadecimal.

No response is returned to the above message.

D-Reg No. Ref No. H No. Description Effective Range

D0059 40059 003A Remote reset If other than 1: InvalidIf 1: UPM100 is hard-reset

5.1 Overview

5-10 IM 77C01H01-10EN

5.2 Message and Response

Function codes are command words used by the higher-level device to obtain the D registers information of UPM100.

Table 5-3 Function Codes

Code Function Description

03 Reads data from multiple D registers. Capable of reading data from a maximum of 64 successive registers. (D0001 to D0150)

06 Writes data into D register. Capable of writing data to one register. (D0001 to D0150)08 Performs loop back test. Used when checking communication wiring.

16 Writes data into multiple D registers. Capable of writing data into a maximum of 32 successive registers. (D0001 to D0150)

• The write function codes will not write into read-only or disabled D registers.• Broadcast addressing is possible with function codes 06 and 16 only. (Also in this case,

read-only or disabled D registers will not be written.)

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03 Reads data from multiple D registers

FunctionThis function code reads the contents of successive D registers by the specified number starting from a specified D registers number.

• The maximum number of D registers to be read at a time is 64.• For the format of responses in the event of failure, see subsection 5.1.4.

Message (for normal operation)

ElementStart of

Message Mark (:)


Function Code(03)

D-Register Start Number

Number of D Registers

Number of bytes in RTU mode None 1 1 2 2

Number of bytes in ASCII mode 1 2 2 4 4

Message (continued)

Error CheckEnd of

Message Mark (CR + LF)

2 None2 2

Response (for normal operation)

ElementStart of

Message Mark (:)


Function Code (03)

Byte Count

Contents of D Register ...

Number of bytes in RTU mode None 1 1 1 2 ...

Number of bytes in ASCII mode 1 2 2 2 4 ...


Contents of D Register Error Check

End of Message Mark

(CR + LF)2 2 None4 2 2

Example (ASCII mode)Read a series of four D registers starting with the D0043 (VT ratio and CT ratio) at station number 11. (D register specification is “42.”)

[Message] [:]0B03002A0004C4[CR][LF]“0B”:station number 11, “03”: function code 03, “002A”: D register specification 42, “0004”: number of D registers 4, and “C4”: error check

* Numbers in quotation marks are hexadecimal.

The following response is returned with respect to the above message.[Response] [:]0B030800003F8000003F806C[CR][LF]

* The CT ratio and VT ratio are floating-point data. The two words of “D0044” and “D0043” indicate “1.” This is the same for “D0046” and “D0045.” The order of the upper word “3F80” and lower word “0000” are converted.

* 3F800000 (floating-point data) → 1 (decimal)

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06 Writes data into D register

FunctionThis function code writes data into a specified D registers number.

• The maximum number of D registers to be written into at a time is 1.• For the format of response in the event of failure, see subsection 5.1.4.• Broadcast addressing is possible (by setting “00” to the station number).


ElementStart of

Message Mark (:)


Function Code (06)

D-Register Number

(Upper Digit)

D-Register Number

(Lower Digit)Number of bytes in RTU mode None 1 1 1 1


Message (continued)

Write Data (Upper Digit)

Write Data (Lower Digit) Error Check

End of Message Mark

(CR + LF)1 1 2 None2 2 2 2


ElementStart of

Message Mark (:)


Function Code (06)

D-Register Number

(Upper Digit)

D-Register Number

(Lower Digit)Number of bytes in RTU mode None 1 1 1 1



Write Data (Upper Digit)

Write Data (Lower Digit) Error Check

End of Message Mark

(CR + LF)1 1 2 None2 2 2 2

Example (ASCII mode)Write “0001” into the D0062 (start of optional integration) at station number 11. (D register specification is “61.”)

[Message] [:]0B06003D0001B1[CR][LF]“0B”: station number 11, “06”: function code 06, “003D”: D register specification 61, “0001”: Data 0001, and “B1”: error check


The following response is returned with respect to the above message.[Response] [:]0B06003D0001B1[CR][LF]

The frame same as the message is returned.

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08 Performs loop back test

FunctionThis function code is used to check connection for communication.

• For the format of response in the event of failure, see subsection 5.1.4.• The “00” shown below (marked with an asterisk *) are fixed.• Any value can be selected for send data.


ElementStart of

Message Mark (:)


Function Code (08)

00* 0000

Send Data (Arbitrary)



Message (continued)

Error CheckEnd of


2 None2 2


ElementStart of

Message Mark (:)


Function Code (08)

00 0000

Same as Send Data




Error CheckEnd of


2 None2 2

Diagnostic CodesDiagnostic Code Meaning Data

0000 Command message return Arbitrary

Example (ASCII mode)Send data “0000” (fixed) and send data 04D2 (arbitrary) to the station number 11 to check the connection for communication.

[Message] [:]0B08000004D217[CR][LF]

When the connection is normal, the following response same as the command is returned.[Response] [:]0B08000004D217[CR][LF]

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16 Writes data into multiple D registers

FunctionThis function code writes data into successive D registers by the number starting from a specified D registers number.

• The maximum number of D registers to be written into at a time is 32.• For the format of response in the event of failure, see subsection 5.1.4.• Broadcast addressing is possible (by setting “00” to the station number).

No response for broadcast addressing.


ElementStart of

Message Mark (:)


Function Code(10)

D-Register Start Number (Upper Digit)

D-Register Start Number (Lower Digit)



Message (continued)

Number of D Registers (Upper Digit)

Number of D Registers (Lower Digit)

Byte Count

Data (Upper Digit)

Data (Lower Digit) … Error

Check

End of Message

Mark (CR + LF)

1 1 1 1 1 … 2 None2 2 2 2 2 … 2 2


ElementStart of

Message Mark (:)


Function Code(10)

D-Register Start Number (Upper Digit)

D-Register Start Number (Lower Digit)




Number of D Registers (Upper Digit)

Number of D Registers (Lower Digit)

Error CheckEnd of


1 1 2 None2 2 2 2

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Example (ASCII mode)Write “10” into a series of four D registers starting with the D0043 (VT ratio and CT ratio) at station number 11. (D register specification is “42.”)

[Message] [:]0B10002A0004080000412000004120ED[CR][LF]“0B”: station number 11, “10”: function code 16, “002A”: D register specification 42, “0004”: number of D registers 4, “08”: byte count (number of D registers × 2), “0000”: VT ratio lower two bytes, “4120”: VT ratio upper two bytes, “0000”: CT ratio lower two bytes, “4120”: CT ratio upper two bytes and “ED”: error check


The following response is returned with respect to the above message.

[Response][:]0B10002A00004B7[CR][LF]

Write “1” into the D0072 (setup change status) to activate the writing into the VT ratio andCT ratio.[:]0B0600470001A7[CR][LF]

“0B”: station number 11, “06”: function code 06, “0047”: D register specification 71, “0001”: writing data 0001, and “A7”: error check


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Functions and Usage of D

Registers

6

6 Functions and Usage of D Registers

6.1 Overview of D Registers

This section describes the functions and usage of D registers.

The D registers store the input values, statuses, and others that are handled by the UPM100. By connecting UPM100 to higher-level device capable of PC link communication or MODBUS communication, you can readily use these internal data items by reading from or writing to the D registers.

Chapter 6 Functions and Usage of D Registers

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6.2 Interpretation of D Register Map Table

This section explains how to read the D Register Map tables in this chapter. The numbers listed in the leftmost column are D register numbers ((1) below). The fivedigit numbers in the next column are reference numbers used for MODBUS communication ((2) below). The numbers in the column third from left are register numbers in hexadecimal notation used in MODBUS communication programs ((3) below).

H No. RegisterSymbol Register Name Effective Range Initial

ValueBack-

up R/WD-RegNo.

RefNo.

0 to 99,999,999 [kWh]0 to 99,999,999 [Wh]

(1) D register number

(2) Reference number (for MODBUS communication)

(3) Hex number (for MODBUS communication)

Register symbol Register name Effective (setting) range and unit

Initial value

Backup of data Backed up at instantaneous

power failure Backed up at setting

Permission of read/write by communcationR: Read/W: Write

An asterisk (*) in this columnindicates that the number of

writing action is limited to 100,000.

D0001 40001 0000 kWh L RD0002 40002 0001 kWh H

Active energy (uint32, lower 2 bytes)Active energy (uint32, upper 2 bytes) R

– ●

060201E.EPS

Data Format Abbreviationsfloat: single precision floating decimal pointunit: without sign integerint: with sign integer

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6.3 Configuration of D Registers Table 6-1 D Register Configuration

Register No. Classification DescriptionD0001 to D0042 Process data Measured value of electric energy, etc.D0043 to D0053 D0057, D0058 Parameter data Setup conditions such as VT ratio and CT ratio

D0059 to D0064 Control data Control of operations such as remote resetD0067, D0068 Process data Measured value of regenerative energyD0069, D0070 Parameter data Regenerative energy setpointD0071 Status Regenerative energy writing statusD0072 Setup change status Switch for triggering setup changeD0073, D0094 D0098

Integrated value writing status Switch for triggering integrated value writing

D0075 to D0084 Process data Measured value of electric energy, etc.D0085 to D0092 Parameter data Setup conditions such as pulses and reactive energyD0093, D0094 Control data Reactive energy reset Reactive energy writing statusD0095, D0096 Parameter data Apparent energy setpointD0097, D0098 Control data Apparent energy reset Apparent energy writing status

D0099, D0100 Area used for internal settings ADC failure, various types of error information

D0101 to D0150 User area Can be used freely by the user.Other Prohibited area Cannot be used. Writing to this area is not guaranteed.

Measuring RangesThe measuring range varies depending on the type of configuration. Variations in the range of measured values are shown below.

a) Variation 1 in the range of measured valuesActive energy (D0001, D0002), apparent energy (D0083, D0084), and regenerative energy (D0067, D0068)

Type Secondary Rated Power x VT x CT Range of Integrated Values1 30 W or greater to less than 1 MW 0 to 999,999 kWh2 999.99 kW or greater to less than 10 MW 0.00 to 9,999,999 kWh3 9.9999 MW or greater 0.0 to 99,999,999 kWh

b) Variation 2 in the range of measured valuesReactive energy (D0077 to D0080)

Type Secondary Rated Power x VT x CT Range of Integrated Values1 30 var or greater to less than 1 Mvar 0 to 99,999 kvarh2 999.99 kvar or greater to less than 10 Mvar 0.00 to 999,999 kvarh3 9.9999 Mvar or greater 0.0 to 9,999,999 kvarh

• If the upper limit of the range of integrated values is exceeded, the integrated value resets to 0 and re-integration begins.

• If the VT or CT ratio is changed, the measured active energy, reactive energy and apparent energy values are reset. The active energy setpoint (D0057, D0058), reactive energy (LEAD, LAG) setpoint (D0089 to D0092) and apparent energy setpoint (D0095, D0096) are also reset, and re-integration begins from 0.

• No values can be written beyond the ranges of measured values set in the D registers for active, reactive and apparent energy setpoints.

• If the primary rated power calculated using the formula “secondary rated power x VT x CT” is greater than 10 GW, the set data will not be validated (the previous data remains valid).

Setup Examples:Wiring type: Single-phase 3-wire, secondary rated power: 200 W, CT: 1000, VT: 1

200000 W (primary rated power) = 200 W (secondary rated power) x 1000 (CT) x 1 (VT)

From this primary rated power value and according to Case a) above, the range of active energy (D0001, D0002) and apparent energy (D0083, D0084) values that can be integrated and measured is 0 to 999,999 kWh.

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6.4 D Register Map

D-Reg No. Ref No. H No. Register

Symbol Register Name Effective Range Initial Value

Back- up R/W

D0001 40001 0000 kWh L Active energy (uint32, lower 2 bytes) 0 to 99,999,999 [kWh]0 to 99,999,999 [Wh]

(Note 4)– ●

R

D0002 40002 0001 kWh H Active energy (uint32, upper 2 bytes) R

D0003 40003 0002 Wh1 L Optional electric energy - current value (uint32, lower 2 bytes)0 to 999,999 [Wh] 0 X

R

D0004 40004 0003 Wh1 H Optional electric energy - current value (uint32, upper 2 bytes) R

D0005 40005 0004 Wh2 L Optional electric energy - previous value (uint32, lower 2 bytes)0 to 999,999 [Wh] 0 X

R

D0006 40006 0005 Wh2 H Optional electric energy - previous value (uint32, upper 2 bytes) R

D0007 40007 0006 W L Instantaneous active power (float, lower 2 bytes)0.1 to 9,999,999.9 [W] 0 X

R

D0008 40008 0007 W H Instantaneous active power (float, upper 2 bytes) R

D0009 40009 0008 V1 L Instantaneous voltage 1 (float, lower 2 bytes)0.1 to 9,999,999.9 [V] 0 X

R

D0010 40010 0009 V1 H Instantaneous voltage 1 (float, upper 2 bytes) R

D0011 40011 000A V2 L Instantaneous voltage 2 (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 1) 0 X

R

D0012 40012 000B V2 H Instantaneous voltage 2 (float, upper 2 bytes) R

D0013 40013 000C V3 L Instantaneous voltage 3 (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 2) 0 X

R

D0014 40014 000D V3 H Instantaneous voltage 3 (float, upper 2 bytes) R

D0015 40015 000E I1 L Instantaneous current 1 (float, lower 2 bytes)0.001 to 9,999,999.990 [A] 0 X

R

D0016 40016 000F I1 H Instantaneous current 1 (float, upper 2 bytes) R

D0017 40017 0010 I2 L Instantaneous current 2 (float, lower 2 bytes) 0.001 to 9,999,999.990 [A](Note 1) 0 X

R

D0018 40018 0011 I2 H Instantaneous current 2 (float, upper 2 bytes) R

D0019 40019 0012 I3 L Instantaneous current 3 (float, lower 2 bytes) 0.001 to 9,999,999.990 [A](Note 2) 0 X

R

D0020 40020 0013 I3 H Instantaneous current 3 (float, upper 2 bytes) R

D0021 40021 0014 PF L Instantaneous power factor (float, lower 2 bytes) -0.500 to 1.000 to +0.500(Note 3) 0 X

R

D0022 40022 0015 PF H Instantaneous power factor (float, upper 2 bytes) R

D0023 40023 0016 V1MAX L Voltage-1 maximum value (float, lower 2 bytes)0.1 to 9,999,999.9 [V] 0 X

R

D0024 40024 0017 V1MAX H Voltage-1 maximum value (float, upper 2 bytes) R

D0025 40025 0018 V1MIN L Voltage-1 minimum value (float, lower 2 bytes)0.1 to 9,999,999.9 [V] 0 X

R

D0026 40026 0019 V1MIN H Voltage-1 minimum value (float, upper 2 bytes) R

D0027 40027 001A V2MAX L Voltage-2 maximum value (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 1) 0 X

R

D0028 40028 001B V2MAX H Voltage-2 maximum value (float, upper 2 bytes) R

D0029 40029 001C V2MIN L Voltage-2 minimum value (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 1) 0 X

R

D0030 40030 001D V2MIN H Voltage-2 minimum value (float, upper 2 bytes) R

D0031 40031 001E V3MAX L Voltage-3 maximum value (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 2) 0 X

R

D0032 40032 001F V3MAX H Voltage-3 maximum value (float, upper 2 bytes) R

D0033 40033 0020 V3MIN L Voltage-3 minimum value (float, lower 2 bytes) 0.1 to 9,999,999.9 [V](Note 2) 0 X

R

D0034 40034 0021 V3MIN H Voltage-3 minimum value (float, upper 2 bytes) R

D0035 40035 0022 I1MAX L Current-1 maximum value (float, lower 2 bytes)0.001 to 9,999,999.990 [A] 0 X

R

D0036 40036 0023 I1MAX H Current-1 maximum value (float, upper 2 bytes) R

D0037 40037 0024 I2MAX L Current-2 maximum value (float, lower 2 bytes) 0.001 to 9,999,999.990 [A](Note 1) 0 X

R


D0039 40039 0026 I3MAX L Current-3 maximum value (float, lower 2 bytes) 0.001 to 9,999,999.990 [A](Note 2) 0 X

R


D0041 40041 0028 VA L Instantaneous apparent power (float, lower 2 bytes)0.1 to 9,999,999.9 [VA] 0 X

R

D0042 40042 0029 VA H Instantaneous apparent power (float, upper 2 bytes) R

Note 1: For the UPM100-1xxxx and UPM100-3xxxx, the readout is always “0”.Note 2: For the UPM100-1xxxx and UPM100-2xxxx, the readout is always “0”.Note 3: The UPM100-1 allows these registers to be read.Note 4: For the UPM100-xxxx0 to -xxxx3, the unit is [kWh].

For the UPM100-xxxx4 to -xxxx7, the unit is [Wh].

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6.4 D Register Map



Back- up R/W

D0043 40043 002A VT L VT ratio (float, lower 2 bytes)1 to 6000 1 ○

* R/W

D0044 40044 002B VT H VT ratio (float, upper 2 bytes) * R/W

D0045 40045 002C CT L CT ratio (float, lower 2 bytes)0.05 to 32000 1.00 ○

* R/W

D0046 40046 002D CT H CT ratio (float, upper 2 bytes) * R/W

D0047 40047 002E LOWCUT L Integral low-cut power (float, lower 2 bytes)0.05 to 20.00 [%] 0.05 ○

* R/W

D0048 40048 002F LOWCUT H Integral low-cut power (float, upper 2 bytes) * R/W

D0049 40049 0030 PULSE1 Pulse unit-1 of electric energy (uint16) 1 to 50,000 [x10Wh/pls] (Note 1) 100 ○ * R/W

D0050 40050 0031 – Do not use. – – – –

D0051 40051 0032 – Do not use. – – – –

D0052 40052 0033 PULSE1WIDTH ON pulse width-1 of electric energy (uint8) 1 to 127 [x10ms]

(Note 1) 5 ○ * R/W

D0053 40053 0034 INTEG START STOP Start/stop of integration 0: Start, 1: Stop 0 ○ * R/W

D0054 40054 0035 – Do not use. – – – –

D0055 40055 0036 – Do not use. – – – –

D0056 40056 0037 – Do not use. – – – –

D0057 40057 0038 kWh SET L Active energy - setpoint (uint32, lower 2 bytes) 0 to 99,999,999 [kWh] 0 to 99,999,999 [Wh]

(Note 2)0 X

W

D0058 40058 0039 kWh SET H Active energy - setpoint (uint32, upper 2 bytes) W

D0059 40059 003A RMT RST Remote reset If other than 1: Invalid If 1: UPM100 is hard-reset 0 X W

D0060 40060 003B kWh RST Active energy resetIf other than 1: Invalid

If 1: Active energy (D0001, D0002) is reset

0 X W

D0061 40061 003C MAX RST Maximum/minimum values reset

If other than 1: Invalid If 1: Maximum/minimum values (D0023 to D0040)

are reset

0 X W

D0062 40062 003D Wh START Start of optional integrationIf other than 1: Invalid

If 1: Optional integration (D0003 to D0006) starts

0 X W

D0063 40063 003E Wh STOP Stop of optional integrationIf other than 1: Invalid

If 1: Optional integration (D0003, D0004) stops

0 X W

D0064 40064 003F RWh Regenerative energy resetIf other than 1: Invalid

If 1: Regenerative energy (D0067, D0068) is reset

0 – W

D0065 40065 0040 – Do not use. – – – –

D0066 40066 0041 – Do not use. – – – –

D0067 40067 0042 RKWH L Regenerative energy (uint32, lower 2 bytes)0 to 99,999,999 [kWh] 0 to 99,999,999 [Wh]

(Note 2)

0 ○ R

D0068 40068 0043 RKWH H Regenerative energy (uint32, upper 2 bytes) 0 ○ R

D0069 40069 0044 RWH SET L Regenerative energy - setpoint (uint32, lower 2 bytes) 0 – W

D0070 40070 0045 RWH SET H Regenerative energy - setpoint (uint32, upper 2 bytes) 0 – W

D0071 40071 0046 RWH STS Regenerative energy writing status

If other than 1: Invalid If 1: The values of D0069 and D0070 are written as

the integrated value

0 – W

D0072 40072 0047 SET STS Setup change status

If other than 1: Invalid If 1: Initialization is

performed to validate setup changes (D0043 to D0049, D0052, D0085, D0087, and

D0088 are validated)

0 X W

D0073 40073 0048 kWh STS Active energy writing status



0 X W

Note 1: The UPM100-xx2xx and UPM100-xx3xx allow this register to be read and written.Note 2: For the UPM100-xxxx0 to -xxxx3, the unit is [kWh].

For the UPM100-xxxx4 to -xxxx7, the unit is [Wh].

6-6 IM 77C01H01-10EN

6.4 D Register Map



Back- up R/W

D0074 40074 0049 – Do not use. – – – –

D0075 40075 004A FREQ L Frequency (float, lower 2 bytes)45.0 to 65.0 [Hz] 0 X

R

D0076 40076 004B FREQ H Frequency (float, upper 2 bytes) R

D0077 40077 004C Lead Varh L LEAD reactive energy (uint32, lower 2 bytes) 0 to 9,999,999 [kvarh] 0 to 9,999,999 [varh]

(Note 1) (Note 5)0 ●

R

D0078 40078 004D Lead Varh H LEAD reactive energy (uint32, upper 2 bytes) R

D0079 40079 004E Lag Varh L LAG reactive energy (uint32, lower 2 bytes) 0 to 9,999,999 [kvarh] 0 to 9,999,999 [varh]

(Note 1) (Note 5)0 ●

R

D0080 40080 004F Lag Varh H LAG reactive energy (uint32, upper 2 bytes) R

D0081 40081 0050 Var L Instantaneous reactive power (float32, lower 2 bytes) 0.1 to ±9,999,999.9 [var] (Note 1) 0 X

R

D0082 40082 0051 Var H Instantaneous reactive power (float32, upper 2 bytes) R

D0083 40083 0052 kVAh L Apparent energy (lower 2 bytes) 0 to 99,999,999 [kVAh] 0 to 99,999,999 [VAh]

(Note 6)0 ●

R

D0084 40084 0053 kVAh H Apparent energy (upper 2 bytes) R

D0085 40085 0054 PULSE2 Pulse unit-2 of electric energy (uint16) 1 to 50,000 [x10varh/pls] (Note 2) 100 ○ * R/W

D0086 40086 0055 – Do not use. – – – –

D0087 40087 0056 PULSE2 SLCT

LAG/LEAD/regenerative selection for pulse output of electric energy

0: LAG pulse, 1: LEAD pulse,

2: Regenerative pulse (Note 2)

0 ○ * R/W

D0088 40088 0057 PULSE2 WIDTH ON pulse width-2 of electric energy (uint8) 1 to 127 [x10ms] 5 ○ * R/W

D0089 40089 0058 Lead kVarh SET L LEAD reactive energy - setpoint (uint32, lower 2 bytes) 0 to 9,999,999 [kvarh]

0 to 9,999,999 [varh] (Note 3) (Note 5)

0 XW

D0090 40090 0059 Lead kVarh SET H LEAD reactive energy - setpoint (uint32, upper 2 bytes) W

D0091 40091 005A Lag kVarh SET L LAG reactive energy - setpoint (uint32, lower 2 bytes) 0 to 9,999,999 [kvarh]

0 to 9,999,999 [varh] (Note 3) (Note 5)

0 XW

D0092 40092 005B Lag kVarh SET H LAG reactive energy - setpoint (uint32, upper 2 bytes) W

D0093 40093 005C kVarh RST Reactive energy resetIf other than 1: Invalid If 1: Reactive energy

(D0077 to D0080) is resetX W

D0094 40094 005D kVarh STS Reactive energy writing status

If other than 1: Invalid If 1: The values of D0089

to D0092 are written as the integrated value

0 X W

D0095 40095 005E kVAh SET L Apparent energy - setpoint (lower 2 bytes) 0 to 99,999,999 [kVAh] 0 to 99,999,999 [VAh]

(Note 6)0 X

W

D0096 40096 005F kVAh SET H Apparent energy - setpoint (upper 2 bytes) W

D0097 40097 0060 kVAh RST Apparent energy resetIf other than 1: Invalid If 1: Apparent energy

(D0083, D0084) is resetX W

D0098 40098 0061 kVAh STS Apparent energy writing status



0 X W

D0099 40099 0062 ADERROR ADC failure – – R

D0100 40100 0063 ERROR Various types of error information – – R

D0101 40101 0064 USER User area (Note 4) 0 to 65535 0 X R/W

• • •

• • •

• • •

• • •

• • •

• • •

• • •

• • •

• • •

D0150 40150 0095 USER User area (Note 4) 0 to 65535 0 X R/W

Note 1: The UPM100-xxxx2 allows these registers to be read.Note 2: The UPM100-xx2x2 and UPM100-xx3x2 allow this register to be read and written.Note 3: The UPM100-xxxx2 allows these registers to be written.Note 4: Use the user area when using a display unit from Digital Corporation.Note 5: For the UPM100-xxxx0 to -xxxx3, the unit is [kvarh].

For the UPM100-xxxx4 to -xxxx7, the unit is [varh].Note 6: For the UPM100-xxxx0 to -xxxx3, the unit is [kVAh].

For the UPM100-xxxx4 to -xxxx7, the unit is [VAh].

6-7IM 77C01H01-10EN


Registers

6

6.4 D Register Map

Bit Information for ADC Failure (D0099)Bit Symbol Failure Status Description

0 to 1415 ADC_COMM_FAIL ADC communication error Occurs if the ADC fails.

Bit Information for Various Types of Errors (D0100)Bit Failure Status0 System data error, calibration data error, parameter error, backup data error1 EEPROM error2 Overranged instantaneous power3 Overranged instantaneous apparent power4 Overranged instantaneous reactive power5 Overranged instantaneous current (I1)6 Overranged instantaneous current (I2)7 Overranged instantaneous current (I3)8 Overranged instantaneous voltage (V1)9 Overranged instantaneous voltage (V2)10 Overranged instantaneous voltage (V3)11 Under-ranged instantaneous voltage (V1)12 Under-ranged instantaneous voltage (V2)13 Under-ranged instantaneous voltage (V3)14 Overranged power factor15 Overranged frequency

7-1IM 77C01H01-10EN

Functions and Usage of I R

elays

7

7 Functions and Usage of I Relays

This chapter describes the functions and usage of the I relays.

The I relays contain information on errors, reset commands, and others of the UPM100. The higher-level device can read/write data from/to I relays using PC link communication.

Relay Name Relay Symbol InitialValue

Back-up R/WRelay No.

IN_OVER

Relay number

Relay name Relay symbol

Initial value

Backup of data Backed up at setting

Permission of read/write by communcationR: Read/W: Write

An asterisk (*) in this columnindicatees that the number of

writing action is limited to 100,000.

1 Input overrange for the input full scale R0

070101E.EPS

Chapter 7 Functions and Usage of I Relays

7-2 IM 77C01H01-10EN

7.1 Configuration of I Relays Table 7-1 I Relay Configuration

I Rlay No. Classification Description1 Error information Error regarding input overrange10 to 15 Control data Operation control such as remote reset, etc.101 to 164 User area Can be used freely by the user.Other Prohibited area Cannot be used. Writing to/reading from this area is not guaranteed.

7-3IM 77C01H01-10EN

Functions and Usage of I R

elays

7

7.2 I Relay Map Table 7-2 I Relay Map

Relay No. Relay Name Relay Symbol Initial Value

Back- up R/W

1 Input overrange for the input full scale IN_OVER 0 R2 – – – – –3 – – – – –4 – – – – –5 – – – – –6 – – – – –7 – – – – –8 – – – – –9 – – – – –10 Remote reset RMT RST 0 W11 Active energy reset Wh RST 0 W12 Maximum/minimum values reset MAX RST 0 W13 Start of optional integration Wh START 0 W14 Stop of optional integration Wh STOP 0 W15 Reactive energy reset kVarh RST 0 W16 – – – – –101 User area USERAREA 0 – R/W

• • •

• • •

• • •

• • •

• • •

• • •

164 User area USERAREA 0 – R/W

8-1IM 77C01H01-10EN

UPM

01 Com

munication

8

8 UPM01 Communication (Original Communication Protocol)

8.1 Overview

The UPM01 communication protocol uses specified categories to facilitate communications not only with the UPM01, but also with the UPM02 and the UPM03. The specified categories that can be used by the UPM100 are A, B, C, and E (the UPM100 is not designed to handle D).

Hereinafter, PCs are generically called “higher-level devices.”


PC

080101E.EPS

Figure 8-1 Example of Connection for UPM01 Communication

In this setting, the UPM100 as a slave returns a response to a command of a higher-leveldevice (master or slave). The UPM100 does not send a command.

Chapter 8 UPM01 Communication (Original Communication Protocol)

8-2 IM 77C01H01-10EN

8.2 Frame Configuration

The tables below show the frame configuration of commands sent from the higher-level device to the UPM100 and that of responses sent from the UPM100 to the higher-level device. Different elements are used for each category. For details, refer to “8.3 Functions.”

< Frame configuration of data sent from higher-level device to UPM100 >

Number of bytes 1 1 3 3 Variable length

(0 to 53) 2 1 1

ElementFRAME LENGTH (FLEN)

Control slot P

AP command

Address (SA) Data BCC ETX CR

(1) (2) (3) (4) (5) (6) (7) (8)

< Frame configuration of data from UPM100 to higher-level device >

Number of bytes 1 1 3 3 Variable length 2 1 1

ElementFRAME LENGTH (FLEN)

Control slot U

AP command

Address (SA) Data BCC ETX CR

(3)

(1) FRAME LENGTH (FLEN) FLEN is the total number of bytes of “Control slot” + “AP Command” + “Station Address” + “Data.” The number is a binary value, but not an ASCII code.

(2) Control Slot (P/U) This slot determines whether the frame is a command (denoted by P) or a response (denoted by U).

(3) AP Command The contents differ depending on the value of the AP command (P or U).

P: Command

Number of bytes 1 1 1Element READ/WRITE Category (X1) Data No. (X2)

U: Response

Number of bytes 1 1 1Element READ/WRITE Category (X1) Status (S)

READ/WRITE

This slot indicates whether data are read (R), written (W), or re-read (F) (the UPM100 performs the same operation as R).

Category (X1)

Data are largely divided into five categories, denoted by A (measured value), B (statistical data), C (set item), and E (user control item) (the UPM100 is not designed to handle D).

8-3IM 77C01H01-10EN

UPM

01 Com

munication

8


Data No (X2)

This slot indicates a subcategory of data, which can be specified by 0 to 9 and A to Z (different depending on the category). Data to be written and data to be read are specified. For details, refer to “8.3 Functions.”

Status (S)

This slot is used to return the status of the UPM100 (binary value). The “S” in the response of the AP command is converted into a binary value, so each bit has a different meaning.

Bit b7 b6 b5 b4 b3 b2 b1 b0Element CMD_ERR TROUBLE VAL_ERR OVR I_OVR V_OVR P_OVR NO_P

b7: Unauthorized commandb6: UPM100 is not designed to handleb5: Set value errorb4: Over-ranged Q (reactive power)b3: Over-ranged I (rms current)b2: Over-ranged V (rms voltage)b1: Over-ranged P (rms power)b0: UPM100 is not designed to hand

NoteThe over-range threshold of the UPM100 (1.2 times that of the rated value) is used as the standard specification value. The over-ranged values of reactive power and rms power are determined from the sums of their respective measurements at all phases. Those of rms current and rms voltage are determined from I1 and V1 measurements, respectively.

(4) Station Address (SA) The values that can be assigned to SA are 001 to 031 (an ASCII code is sent).

(5) Data An ASCII code or 16-bit value (binary) is used for representation. For details, refer to “8.3 Functions.”

When the AP command indicates READ, data are set to the frame to send a response to the higher-level device. When the AP command indicates WRITE, upon completion of writing, the written data are read and set back to the frame, and a response is sent to the higher-level device.

(6) BCC The BCC slot performs the checksum function. The number of bytes of each slot between the FRAME LENGTH slot and the Data slot is converted into a 1-byte hexadecimal value. Then the value of each slot is summed. Each of the lower two digits of the summed value is converted into an ASCII code to obtain 2-byte data.

8-4 IM 77C01H01-10EN


NoteA string of “&H” is added to a numerical value, so that it can be recognized as a hexadecimal value. A to F of hexadecimal values must be uppercase.

Example) For a sum in hexadecimal value, &H234: 3 → &H33 and 4 → &H34 → “BCC = &H33 &H34.”

Example) For a sum in hexadecimal value, &H1DF: D → &H44 and F → &H46 → “BCC = &H44 &H46.”

(7) End of Text (ETX) This slot indicates that the next slot is the last one of the frame. Its hexadecimal value in ASCII code is &H03.

(8) Carriage Return (CR) This slot is the last slot of the frame. Its hexadecimal value in ASCII code is &H0D.

8-5IM 77C01H01-10EN

UPM

01 Com

munication

8

8.3 Functions

This section describes the functions of commands and responses and the contents of frames. For the meaning of each element, refer to “8.2 Frame Configuration.”

Slots between FRAME LENGTH (FLEN) and ETX as well as the CR slot are data exchanged between the higher-level device and stations. The response status (S), the station address (SA), and BCC do not have specific values, so the columns of these three variables are blank in tables of this section. A data format is specified for each type of data.

8.3.1 Measured Items (Category A)Data No. *1 Description

0 Batch transfer (Wh, P, V, I, Q, ɳ*2)1 Electric energy Wh2 Power P3 Voltage Vrms4 Current Irms5 Reactive power Q6 UPM100 is not designed to handle7 UPM100 is not designed to handle8 All-harmonic distortion factor *2

9 Power P, reactive power Q

*1: Data No. items in Category A.*2: The UPM100 does not measure all-harmonic distortion factor. The measured value read out

is always “&H20,” for which no value is given (refer to Appendix, “ASCII Code Table”). The sequence of the batch transfer is Wh, P, V, I, Q, ɳ. Each of these data has a specific data format.

8-6 IM 77C01H01-10EN

8.3 Function

< Command: Reading out >

Element FLEN P/U R/W X1 X2 (Data No.) SA BCC ETX CR

Data

&H07 P R A 0 ETX CR&H07 P R A 1 ETX CR&H07 P R A 2 ETX CR&H07 P R A 3 ETX CR&H07 P R A 4 ETX CR&H07 P R A 5 ETX CR&H07 P R A 6 ETX CR&H07 P R A 7 ETX CR&H07 P R A 8 ETX CR&H07 P R A 9 ETX CR

< Response: Reading out >

Element FLEN P/U R/W X1 S SA Data format BCC ETX CRUnit Data

length

Data

&H07 U R A Batch transfer 58 ETX CR&H07 U R A □□□□□□□□ Wh 8 ETX CR&H07 U R A ± □.□□□□E±□ W 10 ETX CR&H07 U R A ± □.□□□□E±□ V 10 ETX CR&H07 U R A ± □.□□□□E±□ A 10 ETX CR&H07 U R A ± □.□□□□E±□ var 10 ETX CR&H07 U R A □□□□□□□□□□ % 10 ETX CR&H07 U R A Batch transfer 20 ETX CR

ExampleTo use Category A to send a batch transfer command (active energy, instantaneous power,voltage, current):

Station address: 01

[Command]07505241303030314142030D

[Response]

41555241103030313030303030303031 2B362E3531303045 2B312B322E333830

30452B312B382E30 303030452D332D30 2E30303030452D30 20202020202020202020

3542030D

Wh

VA var Distortion factorA

W V

080304E.EPS

• A thin underline “_“ indicates a command. A thick underline “_“ indicates data to be read out.

• Response data do not actually have spaces in between. Spaces are inserted in the example above to make numbers easy to read.

• For analysis of response data, refer to Appendix, “ASCII Code Table.”• The UPM100 does not measure all-harmonic distortion factor. The measurement is

always “20” (ASCII Code 20 means “blank”).

8-7IM 77C01H01-10EN

UPM

01 Com

munication

8

8.3 Function

8.3.2 Statistical Items (Category B)

Data No. Description0 Time T + Average power P + Time T + Average voltage V + Time T + Average current I1 Time Tp + Minimum power P + Time Tv + Minimum voltage V + Time Ti + Minimum current I2 Time Tp + Maximum power P + Time Tv + Maximum voltage V + Time Ti + Maximum current I

* The unit of time is second. The maximum time is 5400 seconds, where the time is reset to 0.



Data&H07 P R B 0 ETX CR&H07 P R B 1 ETX CR&H07 P R B 2 ETX CR

< Response: Reading out >

Element FLEN P/U R/W X1 S SA Data format BCC ETX CRUnit Data

length

Data

&H34 U R B □□□□□±□.□□□□E±□ₓ3s,Ws,Vs,As,Ws,Vs,As,Ws,Vs,A

58 ETX CR

&H07 U R B □□□□□±□.□□□□E±□ₓ3 8 ETX CR

&H07 U R B □□□□□±□.□□□□E±□ₓ3 10 ETX CR

□□□□□±□.□□□□E±□ₓ3 or the like: ASCIITime T is a lapse of time between the last data communication and the one before. Tp, Tv, and Ti are lapses of time between the time when the maximum or minimum value of power, voltage, and current was measured, respectively, and the time when data communication to collect its statistics occurred.

ExampleTo use Category B to send a command to read out “Time T + Average power P + Average voltage V + Average current I”:

Station address: 01

[Command]07505242303030314143

[Response]345552421030303130303030302D302E30303030452D30

30303030302D302E30303030452D30 30303030302D302E30303030452D303535030DTime + Average power

Time + Average voltage Average voltage3535030D

080308E.EPS



• For analysis of response data, refer to Appendix, “ASCII Code Table.”

8-8 IM 77C01H01-10EN

8.3 Function

8.3.3 Set Items (Category C)

Data No. Description Possible set

value range Unit incrementSet unit

increment upon shipping

Unit

0 PT (VT) ratio 1 to 6000 1 11 CT ratio 1 to 32000 1 12 Pulse width 10 to 1270 10 50 msec3 Pulse weight 1 to 50000 1 1000 Wh/pls

Note• After writing a set value, execute reset (manual or remote). It takes about 5 seconds for

restoration after resetting.• The UPM100 can set the value of CT ratio down to the second decimal digit. However, when the

value is read out by the UPM01 communication protocol, decimal digits are truncated.• The UPM100 is set to measure pulse width in increments of 10 msec. The UPM01

communication protocol truncates 1-msec-digit values.• When a value out of the set value range is entered, a set value error is set to the status of the

response, and the currently set value is set to the response and returned.



Data

&H07 P R C 0 ETX CR&H07 P R C 1 ETX CR&H07 P R C 2 ETX CR&H07 P R C 3 ETX CR

< Command: Writing >

Element FLEN P/U R/W X1 X2 SA Data format BCC ETX CRData length

Data

&H34 P W C 0 000001PT 8 ETX CR&H07 P W C 1 000001CT 8 ETX CR&H07 P W C 2 000050MS 8 ETX CR&H07 P W C 3 001000WH 8 ETX CR

< Response: Reading out/Writing >

Element FLEN P/U R/W X1 S SA Data format BCC ETX CRData length

Data

&H34 U R/W C 000001PT 8 ETX CR&H07 U R/W C 000001CT 8 ETX CR&H07 U R/W C 000050MS 8 ETX CR&H07 U R/W C 001000WH 8 ETX CR

8-9IM 77C01H01-10EN

UPM

01 Com

munication

8

8.3 Function

ExampleTo use Category C to send a command to read out “PT ratio (VT ratio)”:

Station Address: 01

[Command]07505243303030314144030D

[Response]0F55524310303031 3030303030315054 3546030D

PT (VT) ratio080313E.EPS

To use Category C to send a command to write 2 to “PT ratio”:

Station Address: 01

[Command]0F5057433030303130303030303250543830030D

[Response]0F55574310303031 3030303030325054 3635030D




• For analysis of response data, refer to Appendix, “ASCII Code Table.”• After writing, execute manual or remote reset. For remote reset commands, refer to the

examples in “8.3.4 User Control Items (Category E).”

8-10 IM 77C01H01-10EN

8.3 Function

8.3.4 User Control Items (Category E)

Data No. Description0 Integration start Negative logic1 Statistics reset Negative logic2 Remote reset Positive logic3 Wh initialization Negative logic4 Error Status 1 –5 Error Status 2 –6 Error Count 2 –

* The Wh initialization command is executed upon reception, after which remote reset is not needed (same as the standard operation of the UPM100).

< Command: Reading out >Element FLEN P/U R/W X1 X2 (Data No.) SA BCC ETX CR

Data

&H07 P R E 0 ETX CR

&H07 P R E 1 ETX CR

&H07 P R E 2 ETX CR

&H07 P R E 3 ETX CR

&H07 P R E 4 ETX CR

&H07 P R E 5 ETX CR

&H07 P R E 6 ETX CR

< Command: Writing >

Element FLEN P/U R/W X1 X1 SA Data format BCC ETX CRDescription Data

length

Data

&H34 P W E 0 &H00/ Other than &H00 Integration start/stop 1 ETX CR

&H07 P W E 1 &H00/ Other than &H00 Statistics reset/current status retain 1 ETX CR

&H07 P W E 2 &H00/ Other than &H00 Current status retain/ remote reset 1 ETX CR

&H07 P W E 3 &H00/ Other than &H00 Wh initialization/ current status retain 1 ETX CR

&H07 P W E 4 &H40 Refer to Error Status 1 1 ETX CR

&H07 P W E 5 &H18 Refer to Error Status 2 1 ETX CR

&H07 P W E 6 &H20 Refer to Error Count 2 1 ETX CR

< Command: Reading out/Writing >

Element FLEN P/U R/W X1 S SA Data format BCC ETX CRDescription Data

length

Data

&H34 U R/W E &H00/ Other than &H00 "Integration start/stop 1 ETX CR

&H07 U R/W E &H00/ Other than &H00 Statistics reset/current status retain 1 ETX CR

&H07 U R/W E &H00/ Other than &H00 Current status retain/ remote reset 1 ETX CR

&H07 U R/W E &H00/ Other than &H00 Wh initialization/ current status retain 1 ETX CR

&H07 U R/W E &H40 Refer to Error Status 1 1 ETX CR

&H07 U R/W E &H18 Refer to Error Status 2 1 ETX CR

&H07 U R/W E &H20 Refer to Error Count 2” 1 ETX CR

8-11IM 77C01H01-10EN

UPM

01 Com

munication

8

8.3 Function

ExampleTo use Category E to send a command to read out “Integration start”:Station Address: 01

[Command]07505245303030314146030D

[Response]0855524530303031 00 4235030D

Integration start080319E.EPS

To use Category E to send a command to write “Remote reset”:

Station Address: 01

[Command]0F5057433030303130303030303250543830030D

[Response]

[Response]0F55574310303031 3030303030325054 3635030D




• For analysis of response data, refer to Appendix, “ASCII Code Table.”

1. Error Status 1

No response is returned when an error is detected in the data link. The detected error is indicated on Error Status 1. If there is a station that does not return a response within the expected time, read out the error status immediately to receive the error contents in order to find out the details of the error.

The contents of the error are saved in Error Status 1, which is updated as an error is detected in the data link. By setting to 1 the remote reset status or the reset switch of the UPM100’s main body, Error Status 1 is initialized (in other words, set to &H00, which means there are no errors).

bit Error Description7 Station address error An error in station address (the UPM100 is not designed to handle)6 Blank5 Blank4 Blank3 Control slot error The data in the control slot is not P/U.2 Frame length error The FRAME LENGTH is different from the actual length of a frame.1 Checksum error Inconsistency in checksum

0 UART error An overrun error, noise flag, or framing error is detected by the MCU (the UPM100 is not designed to handle).

8-12 IM 77C01H01-10EN

8.3 Function

2. Error Status 2, Error Count 2

A response is returned when an error is detected in the application. Error Status 2 and Error Count 2 are updated as well. Error Count 2 counts from 0 to 255 and then goes back to 0. By setting to 1 the remote reset status or the reset switch of the UPM100’s main body, Error Status 2 and Error Count 2 are initialized (in other words, they are set to &H00, which means there are no errors).

• When an unauthorized value is assignedWhen VT ratio, CT ratio, pulse width, or pulse weight is set to an out-of-range value, bit5 of the status of the response is set to 1. The current value of the data remains the same. By reading out the status of the error immediately after its occurrence, it is possible to confirm that bit4 of Error Status 2 in the User Controlled Items is set to 1.

• When an unauthorized command is executedbit7 of the status of the response is set to 1. Also, one of bit0 to bit3 of Error Status 2 is set to 1.

bit Error Description7 Blank6 Blank5 Blank4 Set value error Entry of an unauthorized value was attempted.

3 Memory access error An unauthorized access to the memory occurred (the UPM100 is not designed to handle).

2 Fetch error Fetch was attempted under a condition that is not possible.1 Write error Writing to read-only data was attempted.0 INVALID command error There are invalid data in R/W, Category, or Data No.

App-1IM 77C01H01-10EN

Appendix

App

Appendix 1 Table of ASCII Codes (Alphanumeric Codes)

In order to implement PC link communication, create a transmission/receiving program by referring to the Table of ASCII Codes below.

NUL DLE

SOH DC1

STX DC2

ETX DC3

EOT DC4

ENQ NAK

ACK SYN

BEL ETB

7

0111

p

q

r

s

t

u

v

w

x

y

z

{

}

~

DEL

6

0110

`

a

b

c

d

e

f

g

h

i

j

k

l

m

n

o

5

0101

P

Q

R

S

T

U

V

W

X

Y

Z

[

\

]

•

_

4

0100

@

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

3

0011

0

1

2

3

4

5

6

7

8

9

:

;

<

=

>

?

2

0010

SP

!

“

#

$

%

&

‘

(

)

*

+

,

-

.

/

1

0001

CAN

EM

SUB

ESC

FS

GS

RS

US

0

0000

BS

HT

LF

VT

FF

CR

SO

SI

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

b1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

b2

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

b3

0

0

0

0

1

1

1

1

0

0

0

0

1

1

1

1

b4

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

b5b6b7b8

Control code Character code APP01E.EPS

Note: SP($20): space DEL($7F): control code

Appendix

IM 77C01H01-10EN

Revision Information

• Title : Model UPM100, UPM101 Universal Power Monitor Communication Functions• Manual No. : IM77C01H01-10EN

Aug. 2003/1st EditionNewly published

Mar. 2005/2nd EditionAddition of Model UPM101

Oct. 2018/3rd EditionAddition of the display functions

Mar. 2019/4th EditionAddition of the 920 MHz wireless communication function <For the Republic of Korea>

Written by Yokogawa Electric CorporationPublished by Yokogawa Electric Corporation

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