fieldbus tutorial part 1 - fieldbus overview
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Fieldbus Overview
[File Name or Event]Emerson Confidential27-Jun-01, Slide 2
Agenda
Basic Concepts
Interoperability
Benefits from Fieldbus Installations
Availability of Fieldbus Devices
[File Name or Event]Emerson Confidential27-Jun-01, Slide 3
Foundation Fieldbus is the basis for modern control and automation products.
Advanced functions added to field instruments
Expand view for the operator
Enable migration of functions the field
Reduce wiring and installation costs
Reduce I/O equipment by one-half or more
Provide increased information flow to enable automation of engineering, maintenance, and support functions
[File Name or Event]Emerson Confidential27-Jun-01, Slide 4
What is Fieldbus?
Definition...
Control room
operator stations
Control systems
(DCS or PLC)
P
T
L
F
Fieldbus
A digital, two-way, multi-drop communication link among intelligent field devices and automation systems.
[File Name or Event]Emerson Confidential27-Jun-01, Slide 5
DCS
4 - 20 mA
Proprietary Bus
4 -20 mA 4 -20 mA
A Typical Plant Today
[File Name or Event]Emerson Confidential27-Jun-01, Slide 6
Today's Communications
Controller PLCGW PLC
ComputerGW
Remote I/O cards & termsRemote I/O cards & terms
Two wire Transmitters &Control Elements
PLC - DCS
PLC
PLC
Remote I/O
M
SimpleSensors &Switches
MotorDrives
ProgrammableController(PLC) Networks
DistributedControl SystemNetwork
Electrical Signals
4-20mA orproprietary
digital
ProprietaryBusses
ProprietaryInterfaces
Many different types of proprietary digital communications-Limited information from the field available to the control room.
[File Name or Event]Emerson Confidential27-Jun-01, Slide 7
DCS
A Plant with Fieldbus
High Speed Fieldbus (100 Mbits/s)*
Low Speed Fieldbus (31.25 Kbits/s)
*Fast Ethernet
Maintenance
A Plant with Fieldbus
Interoperable devices
[File Name or Event]Emerson Confidential27-Jun-01, Slide 8
Fieldbus Cable Types
Cable Type and Description Size Length
Type A (New) Shielded, twisted-pair
– H1: 31.25 Kbps #18 AWG 1900* m
– H2: 1.0 Mbps #22 AWG 750* m
– H2: 2.5 Mbps #22 AWG 500* m
Type B (Existing) Multi-twisted-pair, w/shield
– H1: 31.25 Kbps #22 AWG 1200* m
Type C Multi-twisted-pair, w/o shield
– H1: 31.25 Kbps #26 AWG 400* m
Type D Multi-core, w/o shield
– H1: 31.25 Kbps #16 AWG 200* m
* Spurs count in overall length
[File Name or Event]Emerson Confidential27-Jun-01, Slide 9
Fieldbus : more than just communication
DCS or
PLC
XMTR
4 -20 mA
MMI
TAG : FT-234A
VALUE : 456.5
UNIT : cuft/s
STATUS : Good, with
alarm at
400cuft/s not
acknowledgedXMTR
[File Name or Event]Emerson Confidential27-Jun-01, Slide 10
Freedom of Choice !
Allows digital instruments to be
connected onto a Fieldbus network and have
them communicate all available functionality
to each other and with the networked hosts.
TM
[File Name or Event]Emerson Confidential27-Jun-01, Slide 11
FunctionBlock(s)
TransducerBlock
ResourceBlock
FOUNDATION™
fieldbus
FOUNDATION Fieldbus Blocks, Trends, Alerts
Basic Components
µP
PluggedImpulse
Line
Electronics
Diagnostics
CommunicationDiagnostics
Trend
Alert
[File Name or Event]Emerson Confidential27-Jun-01, Slide 12
Automatic Address Assignment
This feature allows fast and safe commissioning of the Fieldbus Network!
No dip switches, no pre-configuration.
[File Name or Event]Emerson Confidential27-Jun-01, Slide 13
Unique Information is Maintained by Device
[File Name or Event]Emerson Confidential27-Jun-01, Slide 14
Standardized Function Block Application Designed For Process Industry Requirements
AI PID AO
PID AI
[File Name or Event]Emerson Confidential27-Jun-01, Slide 15
Fieldbus Function Blocks
Discrete Input
Discrete Output
Analog input
Analog Output
PID, PI, I Control
P, PD Control
Control Selector
Manual Loader
Bias/Gain Station
Ratio Station
Basic
Pulse Input
Complex Analog Output
Complex Discrete Output
Step Output PID
Device Control
Setpoint Ramp Generator
Splitter
Input Selector
Signal Characterizer
Lead Lag
Deadtime
Arithmetic
Calculate
Integrator(Totalizer)
Timer
Analog Alarm
Discrete Alarm
Analog Human Interface
Discrete Human Interface
Advanced
[File Name or Event]Emerson Confidential27-Jun-01, Slide 16
AI
PID
AI
PID AO CAS
IN
IN
SP
Product
Steam
TT100
TIC100
FT101
FIC101 FCV101
TIC100.OUT
Easy control strategy configuration
[File Name or Event]Emerson Confidential27-Jun-01, Slide 17
Communication Services and Deterministic Scheduling For Time Critical Control
TT100.OUT
TIC100.OUT
FT101.OUT
FIC101.OUT
FIC101.
BCKCAL_OUT
FCV101.
BCKCAL_OUT
TT100.OUT
TIC100.OUT
Cyclic Acyclic
TT
FCV
FT
macro-cycle macro-cycle
FIC101.
BCKCAL_OUT
FT101.OUT
FIC101.OUT
FCV101.
BCKCAL_OUT
[File Name or Event]Emerson Confidential27-Jun-01, Slide 18
Standard Measurement and Control Diagnostics Supported by Devices
[File Name or Event]Emerson Confidential27-Jun-01, Slide 19
Devices Provide Predictive Diagnostics
Provide Information On Life Expectancy and Performance
Degradation
Device Performance
Failure
Predictive Alarm
[File Name or Event]Emerson Confidential27-Jun-01, Slide 20
Predictive Maintenance Examples
Transmitter generates an alert when
the probe tip degenerates
the device has exceeded factory maximum field temperature usage
• Cycle Counter
• Valve Signature
• Dynamic Error Band
O2 Sensor creates alert when the sensor fouls
[File Name or Event]Emerson Confidential27-Jun-01, Slide 21
Classic I/O
H1
Other Buses
Other Buses
Event is Time Stamped At The Source!
[File Name or Event]Emerson Confidential27-Jun-01, Slide 22
Interoperability Allows...
Devices from different manufacturers are able to interact with each other without Host interaction
– Control in the field works seamlessly
– Devices do not conflict with each other
Host can read/write the resource and transducer block parameters
Device diagnostics may be accessed by the host
[File Name or Event]Emerson Confidential27-Jun-01, Slide 23
Test System
Device Description Test Cases
Device Interoperability Testing at the FOUNDATION
Test Function Block
[File Name or Event]Emerson Confidential27-Jun-01, Slide 24
Interoperability Is a Reality
Modern control systems support
Foundation Fieldbus devices from all
manufacturers
[File Name or Event]Emerson Confidential27-Jun-01, Slide 25
New Types of Fieldbus Devices May be Easily Added
Device Descriptions may be
added in accordance with the
FOUNDATION standards.
[File Name or Event]Emerson Confidential27-Jun-01, Slide 26
A Device Is Registered by the Fieldbus
FOUNDATION after it passes these tests:
FOUNDATION™ fieldbus Physical Layer
Conformance Test Specification (FF-830)
Interoperability Test of Standard Function
Blocks, Resource Block and System/network
Management Functions
Device Description (DD) Interoperability Test
All Files necessary (Capabilities File) for the
device definition are included and appropriate.
Registered Devices
[File Name or Event]Emerson Confidential27-Jun-01, Slide 27
Types of Fieldbus Devices That Have Been Registered
Mass Meter
Pressure Differential
Pressure Absolute
Valve Positioner
Valve Actuator
Rotary Valve Actuator
Radar Level
Mag Flow
Digital Valve Controller(on/off)
Digital Valve Controller
pH/ORP
pH
Temperature
Coriolis Mass Flow
Nuclear Level Gauge
Vortex Flow
2-wire In Situ O2
Conductivity
Conductivity/Resistivity
Continuous Gas Analyzer
Gas Chromatograph
Fieldbus to Current
Fieldbus to Pressure
Current to Fieldbus
Recorder
Fieldbus Controller
Discrete I/O
[File Name or Event]Emerson Confidential27-Jun-01, Slide 28
Edmonton, Canada
Syncrude - Canada
Control System
– DeltaV
– Honeywell Scan 3000/TPS
Fieldbus Devices
– Rosemount
– Fisher Controls
– Valtek
– Yokogawa
– Honeywell
– Smar
– E + H
[File Name or Event]Emerson Confidential27-Jun-01, Slide 29
Royal Dutch Shell - Amsterdam
Shell - Amsterdam
Control System
– DeltaV
– Yokogawa Centum
– Honeywell Scan 3000
– Smar
Fieldbus Devices
– Fuji
– Yokogawa
– Fisher Controls
– Rosemount
– Honeywell
– Smar
[File Name or Event]Emerson Confidential27-Jun-01, Slide 30
Test Reports
Foundation Fieldbus
Interoperability
Test Report
Shell Research Center
Amsterdam
Peter Eigenrann
Bindert Douma
Fieldbus brings dramatic savings in installation and commissioning, but the real value is seen during plant operation...
[File Name or Event]Emerson Confidential27-Jun-01, Slide 32
Over 120,000 Foundation Fieldbus devicesin more than 4,000 installations
Nu
mb
er o
f F
ield
bu
sP
roje
cts
0
1000
2000
3000
4000
Oct
-98
Jan-
99
Apr
-99
Jul-9
9
Oct
-99
Jan-
00
Apr
-00
Jul-0
0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Source: Fieldbus Foundation
[File Name or Event]Emerson Confidential27-Jun-01, Slide 33
Driving Forces For Acceptance
Saving in installation and commissioning of field devices
Greater access to device information
Freedom of choice in device selection enabled by Foundation Interoperability
[File Name or Event]Emerson Confidential27-Jun-01, Slide 34
Cost savings for first 64 wells versus
competitors’ solution:
• Engineering 336 vs. 480 KUSD
• Commissioning 14 vs. 86 KUSD
• Wiring 206 vs. 596 KUSD
Audited Savings 556 vs. 1162 KUSD
Other Reductions:
• Terminations 84%
• I/O Cards 93%
• Panel Space 70%
• Transmitters 28%
• Maintenance 50 - 80%
Savings at ARCO Alaska
[File Name or Event]Emerson Confidential27-Jun-01, Slide 35
Fieldbus Installation and Commissioning
Category Conventional I/O Fieldbus Savings
Wiring 2 wires per device 16 devices per 2 wires 90%
Commissioning 2 - 4 hrs per device 5 min per device 96%
Space 75 loops per cabinet Eliminates 75% ofspace
75%
InstrumentEngineering
3 hrs per device 1 hr per device 67%
[File Name or Event]Emerson Confidential27-Jun-01, Slide 36
Before
Courtesy: Cargill Corporation
[File Name or Event]Emerson Confidential27-Jun-01, Slide 37
After
Courtesy: Cargill Corporation
[File Name or Event]Emerson Confidential27-Jun-01, Slide 38
256 I/O
BEFORE
[File Name or Event]Emerson Confidential27-Jun-01, Slide 39
4,000
Fieldbus ‘I/O’
AFTER
[File Name or Event]Emerson Confidential27-Jun-01, Slide 40
Over 50 Registered Fieldbus Devices are Available Today From 20 manufacturers
Fuji
[File Name or Event]Emerson Confidential27-Jun-01, Slide 41
Types of Fieldbus Devices That Have Been Registered
Mass Meter
Pressure Differential
Pressure Absolute
Valve Positioner
Valve Actuator
Rotary Valve Actuator
Radar Level
Mag Flow
Digital Valve Controller(on/off)
Digital Valve Controller
pH/ORP
pH
Temperature
Coriolis Mass Flow
Nuclear Level Gauge
Vortex Flow
2-wire In Situ O2
Conductivity
Conductivity/Resistivity
Continuous Gas Analyzer
Gas Chromatograph
Fieldbus to Current
Fieldbus to Pressure
Current to Fieldbus
Recorder
Fieldbus Controller
Discrete I/O
Note: See www.fieldbus.org for latest listing
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