05 geh-6408 trend recorder

GE Energy GEH-6408

Control System Toolbox for theTrend Recorder

These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible contingencyto be met during installation, operation, and maintenance. The information is supplied for informational purposes only, andGE makes no warranty as to the accuracy of the information included herein. Changes, modifications, and/or improvements toequipment and specifications are made periodically and these changes may or may not be reflected herein. It is understoodthat GE may make changes, modifications, or improvements to the equipment referenced herein or to the document itself atany time. This document is intended for trained personnel familiar with the GE products referenced herein.

GE may have patents or pending patent applications covering subject matter in this document. The furnishing of this documentdoes not provide any license whatsoever to any of these patents.

This document contains proprietary information of General Electric Company, USA and is furnished to its customer solely toassist that customer in the installation, testing, operation, and/or maintenance of the equipment described. This documentshall not be reproduced in whole or in part nor shall its contents be disclosed to any third party without the written approval ofGE Energy.

GE provides the following document and the information included therein as is and without warranty of any kind, expressed orimplied, including but not limited to any implied statutory warranty of merchantability or fitness for particular purpose.

If further assistance or technical information is desired, contact the nearest GE Sales or Service Office, or an authorizedGE Sales Representative.

© 2010 General Electric Company, USA. All rights reserved.

Issued: 100609

* Trademark of General Electric Company

Readers Comments To:

GE Energy

Documentation Design, Rm. 297

1501 Roanoke Blvd.

Salem, VA 24153–6492 USA

Fax: 1–540–387–8651

(GE Internal DC *278–8651)

We welcome comments and suggestions to make this publication more useful.

Your Name Today’s Date If needed, how can we contactyou?

Your Company’s Name and Address Job Site Fax No ........................................

Phone No ...................................

GE Requisition No. E-mail .........................................

Publication No. AddressYour Job Function / How You Use This Publication

Publication Issue/RevisionDate

General Rating

Excellent Good Fair Poor Additional Comments

Contents ...............................................Organization ...............................................Technical Accuracy ...............................................Clarity ...............................................Completeness ...............................................Drawings / Figures ...............................................Tables ...............................................Referencing ...............................................Readability ...............................................

Specific Suggestions (Corrections, information that could be expanded on, and such.)

Page No. Comments

............................................................................................. ..................................................................................................

............................................................................................. ..................................................................................................

............................................................................................. ..................................................................................................

............................................................................................. ..................................................................................................

.............................................................................................. ..................................................................................................

.............................................................................................. ..................................................................................................

Other Comments (What you like, what could be added, how to improve, and such) .....................................................................

.....................................................................................................................................................................................................

.....................................................................................................................................................................................................

......................................................................................................................................................................................................

......................................................................................................................................................................................................

......................................................................................................................................................................................................

......................................................................................................................................................................................................

Overall grade (Compared to publications from other manufacturers of similar products, how do you rate this publication?)

Superior Comparable Inferior Do not know Comments .............................................Detach and fax or mail.

....................................................................Fold here and close with staple or tape....................................................................

Placestamphere_______________________

______________________________________________

GE EnergyDocumentation Design, Rm. 2971501 Roanoke Blvd.Salem, VA 24153–6492 USA

........................................................................................Fold here first........................................................................................

ContentsChapter 1 Overview......................................................................................................... 1-1

Introduction......................................................................................................................................1-1Data Collection .................................................................................................................................1-1

Real-time ..................................................................................................................................1-2Block Collection.........................................................................................................................1-3.dca Files...................................................................................................................................1-3

Chapter 2 Trend Recorder Window ............................................................................... 2-1Introduction......................................................................................................................................2-1Create Trend Recorder........................................................................................................................2-1

Trend Recorder Window ..............................................................................................................2-2Column Heading Descriptions .......................................................................................................2-3Modes of Operation.....................................................................................................................2-4Toolbar .....................................................................................................................................2-5Trend Recorder Settings..............................................................................................................2-9

Chapter 3 Trend Types.................................................................................................... 3-1Introduction......................................................................................................................................3-1Real-Time Trends ..............................................................................................................................3-1

Configure the Real-Time Trend......................................................................................................3-1Add Signals Using Edit Menu .......................................................................................................3-3Add Signals Using Drag-and-Drop .................................................................................................3-4Edit Properties............................................................................................................................3-4Edit Signals ..............................................................................................................................3-5

Block Collected Trends.......................................................................................................................3-6Configure Block Collected Trend ...................................................................................................3-6Upload Data...............................................................................................................................3-7

Data Historian Trends.........................................................................................................................3-8Configure Data Historian Trend .....................................................................................................3-8Add Signals ...............................................................................................................................3-9

.dca File Trends............................................................................................................................... 3-10Configure .dca File Trend ........................................................................................................... 3-10

.d04 File Trends .............................................................................................................................. 3-11Chapter 4 Using the Trend Recorder............................................................................. 4-1

Introduction......................................................................................................................................4-1Record Trends...................................................................................................................................4-1Save Trends......................................................................................................................................4-2Import Trends From .csv files...............................................................................................................4-3Export Trends to .csv Files ..................................................................................................................4-4

Trender Export Data Options.........................................................................................................4-4Print Trends......................................................................................................................................4-4

Chapter 5 Viewing Trends .............................................................................................. 5-1Introduction......................................................................................................................................5-1Move Between Events ........................................................................................................................5-2Change Time Axis .............................................................................................................................5-3

Trender Time Axis ......................................................................................................................5-3Use Replay Cursors............................................................................................................................5-4Zoom In/Out.....................................................................................................................................5-5Stacked Signal Traces.........................................................................................................................5-6Auto-Range Displayed Data ................................................................................................................5-7X-Y Plots.........................................................................................................................................5-8Power Spectrum .............................................................................................................................. 5-10

FFT Options ............................................................................................................................ 5-10Glossary of Terms.............................................................................................................. 1

GEH-6408 Table of Contents 1

Notes

Table of Contents 2 Control System Toolbox for the Trend Recorder

Chapter 1 Overview

IntroductionThis document applies tovarious controllers or drives;therefore, the contents ofthe dialog boxes can varyaccording to your product.

This chapter describes the Trend Recorder, which monitors and graphs signal values fromcontrollers or drives and graphs data collection analysis (.dca) files. Data can also be savedand exported for other applications, such as spreadsheets.

Data CollectionThe Trend Recorder uses three methods to collect data:

• Real-time

• Block-collected

• Reading .dca and .d04 files

GEH-6408 Chapter 1 Overview User Guide 1-1

Real-time

The minimum interval betweensamples is 32 ms.

Real-time data is collected by the toolbox. Real time mode is for low-to-medium datacollection rates. Signals can be trended from controllers, drives, and Data Historiandevices. With this method, both internal signals in the device and any external signal on adrive local area network (DLAN+) that the device is attached to can be trended. All thesignals are sampled at the same time by a task running in the device. The sample set isthen transmitted over the network to the toolbox. You can set the sampling rate when youare configuring the trend.

Real-time trending of internal data from a controller requires that the controller file beloaded in the toolbox while the trend is being set up. DLAN+ signals can be added to thetrend without having the device file open in the toolbox. However, the toolbox must haveaccess to the System Database (SDB). Once the trend is set up, data can be collected anddisplayed from a controller without the controller being loaded in toolbox.

It is not necessary to havethe device file loadedwhile replaying previouslycollected data.

Only internal signals can be trended from an AcDcEx. Signals are sampled one at a time,sequentially. The sample interval between signals is an average 22 ms. The intervalbetween samples of the same signal is the number of signals multiplied by the intervalbetween samples. When real-time trending signals from a drive, you must have the devicefile open in the toolbox while the trend is set up and also when data is collected.

Real-time trending is also possible for any global signal from any network connected to aData Historian by using the Live Data Server service installed with the Data Historianproduct. The toolbox must have access to the SDB to get signal information, and theData Historian device must be posted to the SDB as a device connected to one or morenetworks. The Live Data Server can provide signal data from DLAN+, EGD, CSF, andTCnet networks.

When trending from an Innovation Series™ drive, signal values are collected in a groupof four at a time, at an average rate of 20 ms per group. The sampling strategy is similar tothe AcDcEx drive; however, instead of getting only one signal value at a time, the TrendRecorder reads up to four signals simultaneously. This greatly improves the effectivesampling rate over that of the AcDcEx drive.

Data is collected from the AcDcEx drive one signal value at a time. The average sampleinterval between signals is about 50 ms.

1-2 Control System Toolbox for the Trend Recorder

Block Collection

Refer to Chapter3, the section,Block Collected Trends.

Block collection is available in controllers and in the Innovation Series drive using theCapture Buffer block and in other drives using theCircular List block. The data isuploaded to the toolbox when the collection is completed. Block-collected mode is forhigh-speed trending. The only limit on collection rate is the execution rate of the collectorblock.

It is not necessary to havethe configuration file loadedwhile replaying previouslyuploaded data.

Block-collected trending requires that the configuration file, which contains the collectorblock, be loaded in the toolbox while the trend is set up and also when data is uploadedfrom the block.

Note Refer to the configuration chapter of the specific GE Control System Solutionsdocument for editing blocks.

.dca Files

The .dca file is a common data storage format used by many applications. It is primarilyused to store data collected by the Data Historian product.

The Trend Recorder can read these files in two ways:

• Individually, where you specify the name(s) of the .dca files toload into the Trend Recorder.

• As part of aData Historian Collected Trend, where you specify signals froma particular Data Historian device and/orData Historian collection. The TrendRecorder determines the name(s) and location(s) of the necessary .dca files.

GEH-6408 Chapter 1 Overview User Guide 1-3

Notes


Chapter 2 Trend Recorder Window

IntroductionThis chapter provides instructions for using the toolbox to create a Trend Recorder. It alsodescribes toolbar and menu commands, as well as option settings.

If help is needed beyond the instructions provided in the documentation, contact thenearest GE Sales or Service Office or an authorized GE Sales Representative.

Create Trend Recorder� To create a Trend Recorder

♦ From theFile menu, selectNew. TheNew dialog box displays.

GEH-6408 Chapter 2 Trend Recorder Window User Guide 2-1

Trend Recorder Window

To set options for recordingtrends, refer to the section,Trend Recorder Settings.

When theTrend Recorder Window is invoked, it displays as a separate window in thetoolbox. The window is divided into two views, which can be altered with the adjustablesplit bar (see screen below):

• TheTop Graph View of the Trend Recorder Window displays the actual graph(s).

• The Lower Signal View displays the signals that are monitored inthe graph and their current values.

Tip � Signals are selected in the Lower Signal View when they are configured, edited,and removed. Adjust the size of the Signal view by dragging the split bar, shown inthe screen below.

Tip � To view both the toolbox and the Trend Recorder window, select Tile Horizontalor Tile Vertical from the Window menu. Then, to invoke and work in the Trend Recorderwindow, click anywhere in the Trend Recorder window or click anywhere in the toolboxwindow.


Column Heading Descriptions

The following column headings are available for the Lower Signal View. The availabilityof these headings depends on which mode (Record or Replay) the Trend Recorder is in.

Column Mode Description

Axes Record, Replay Displays the Y-Axis that is applicable to the signal.

Pen Record, Replay Displays the color of the signal trace line.

Signal Name Record, Replay Displays the signal name.

Value Record — Displays the value of the signal.

Left Value — Replay Displays the value of the signal at the left cursor.

Right Value — Replay Displays the value for the signal at the right cursor.

Units Record, Replay Displays the signal units.

Description Record, Replay Displays a brief description of the signal.

Difference — Replay Displays the difference between the Left Value and Right Value.

Min Value — Replay Displays the minimum recorded value of the signal.

Max Value — Replay Displays the maximum recorded value of the signal.

Average — Replay Displays the average value of the signal during the recording.

� To change the column headings for the Lower Signal View

1. From theOptions menu, selectSettings . TheSettings dialog box displays.

2. Click the Trend Recorder tab.

3. Click the Columns button. TheTrend Recorder Signal ViewColumns dialog box displays.


Modes of Operation

The Trend Recorder has the following modes of operation, which are indicated in theStatus bar at the lower-right of the Trend Recorder Window:

Status bar displays Waitor Record.

Record: captures data and displays it as a graph, which can then be saved to disk. Youcan set Record to capture data continuously or only around a trigger event.

Status bar displays Paused. Pause: suspends the live update of the display; however, continues to record and capturedata in the background. The display appears to be in Replay mode, except the abilityto scan back and forth is absent.

Status bar displays Replay. Replay: allows you to review data collected in Record mode or uploaded from adevice-based block-collected trend. You can scan back and forth between multiplerecorded events to examine data in detail.

Status bar displays Upload. Upload: captures data collected by a Capture Buffer block in a controller or in anInnovation Series drive or by a Circular List block in other drives. You can set Uploadto run as a one-time event or leave the Trend Recorder in this mode. When left in theUpload mode, the toolbox monitors the blocks and automatically uploads data whena collection takes place.


Toolbar

The Trend Recorder toolbar contains the following menu commands:

Click… To…

Record displays and graphs of the current values of the selected signals. Data is also captured and can bereplayed or saved to disk.

Pause the graphical update of the recording process. Data continues to be recorded in background mode.

Upload data collected by the data collector block in a controller or a drive device. If automatic upload is selected,the Trend Recorder remains in upload mode until selected again.

Edit the data collector block.

Configure the Trend Recorder.

Move through events and display previously recorded data.

Move the current event back by one-third of the currently displayed width of the time axis.

Move the current event ahead by one-third of the currently displayed width of the time axis.

Move through events and display the next recorded data.

Add signal(s) to be trended.

Remove selected signal(s) from the trend.

Configure the time (horizontal) axis parameters.

Automatically range the vertical axis based on the data currently displayed in the graph.

Zoom in and display the selected area of the graph between the replay cursors.

Zoom out and display the area of the graph to a maximum of three times the current screen.

Set the trend into X-Y plotting mode.


Edit Menu

The following options are available.

Delete All Data removes all data collected by the Trend Recorder.

Delete This Event removes the recorded event that is currently displayed.

Add Signal adds a signal to the Trend Recorder.

Remove Signal removes the signal selected in the Lower Signal View.

Get Signals retrieves configuration information from the SDB for DLAN+ signalsin real-time trends.

Hide Selected Signals conceals signals that are selected in the Lower Signal View.

Show Signals selects which signals are displayed and hidden.

Change Signal Device changes the drive that a drive signal is trended from.

Time Axis changes the range of the time axis.

Edit Selected Signal changes the range, color, line width, and style for a signal.

Show on Left/Right Axis of the trace displays the range of the selected signal.

Show on Outer Left/Right Axis of the trace displays the range of the selected signalon the outer axis.

Auto Range Vert. Axis causes the graph to set the range of all signals based on thevalues of the signals that are currently displayed on the graph.

Configure displays theTrend Recorder Configuration dialog box to set up the trend.


Set Signal As Trigger specifies the selected signal as the trigger for real-time triggeredmode trends.

Move Signal Up/Down alsochanges the position of thesignal in stacked view.

Move Signal Up moves the signal up one position in the Signal View.

Move Signal Down moves the signal down one position in the Signal View.

Set As X Axis marks the selected signals to be the X-axis for X-Y plots.

Edit Block invokes a detached block diagram view in a block-collected trend.

View Menu

The following options are available.

Toolbar controls the display of theTrend Recorder toolbar.

Status Bar controls whether the Trend Recorder status bar displays.

Stacked Traces controls whether the Trend Recorder displays each signal trace in itsown window (stacked mode) or in one signal graph view.

X-Y Plot Mode controls whether the X-axis is based on the value of one of the signalsthat has been collected (X-Y plot mode) or based on time (normal mode).

Power Spectrum shows a spectral analysis of the trended data using a Fast FourierTransform.

Upload Data causes the data collected by the collector block of a block-collected trendto be uploaded to the Trend Recorder.


Record starts and stops the Trend Recordercollecting data for a real-time trend.

Pause suspends the update of the graphical display of the recording process; however,the Trend Recorder continues to collect data in background mode.

Reload DCA Files causes data to be re-read from a .dca file.

Previous Trend displays previously recorded data.

Rewind moves the current event back through the currently displayed trend by one thirdof the currently displayed width of the time axis.

Forward moves the current event ahead by one-third of the currently displayed width ofthe time axis.

Next Trend is used to move through events and display the next recorded data.

Only available whenreplaying data.

Zoom In displays the area of the graph between replay cursors.

Zoom Out displays area of the graph to a maximum of three times current screen.

Only available when trendingfrom an AcDcEx.

Drive Terminal invokes the drive terminal window.

Event Note invokes the note editor. A note can be added to each trend event (recording).Notes are displayed at the bottom of the page on printouts of trends.

Event List displays a list of all alarms and events that are captured in the current trend.

Sdb Browser opens a new window that allows you to view signals, alarms, scales, andother information in the database which devices in a system share for communication.


Trend Recorder Settings

This document applies tovarious controllers or drives,therefore the contents of thedialog boxes vary accordingto your product.

� To select specific settings for a trend

1. From theOptions menu, selectSettings . TheSettings dialog box displays.


Note While waiting for a trigger condition, the Trend Recorder displays and graphsthe values of the signals. However, the values are not saved, and once they scroll offthe left side of the graph screen, they cannot be viewed.


Notes


Chapter 3 Trend Types

IntroductionTo set options for recordingtrends, refer to the section,Trend Recorder Settings.

This section provides instructions for using the toolbox to configure a Trend Recorder.There are four types of trend configurations:

• Real time

• Block collected

• Data Historian collected

• .dca files

Real-Time TrendsSetting up a real-time trend includes:

• Selecting the signals to be trended

• Setting the scaling for both time and vertical axes

• Setting the record mode and sampling rate

Configure the Real-Time Trend

� To set up the real-time trend

♦ From theEdit menu, selectConfigure . The Trend RecorderConfiguration dialog box displays.

GEH-6408 Chapter 3 Trend Types User Guide 3-1

Real-Time Trend Configuration

Note If the Trend Recorder is left running in triggered record mode for an extendedperiod, multiple events can be captured.

Continuous/Triggered Recording

The default size of this bufferis 2MB, which corresponds toapproximately 16 minutes ofdata when sampling 4 signalsat the fastest sampling rate (32ms between samples).

Real-time trends can be recorded continuously or in a triggered mode through theReal-time Trend Recording Mode in the Trend Recorder Configuration dialog box, shownin the section, Configuring the Real Time Trend.

Continuous recording collects data until the trace buffer is full. The trace buffer is aninternal buffer used to store data while recording and displaying traces. The size of thebuffer is set using the Trend Recorder Settings dialog box. When the trace buffer is filled,the Trend Recorder will continue recording, deleting the oldest values as it adds newones to the buffer.

Triggered recording collects data based on an external event. In this mode, the TrendRecorder watches a designated trigger signal. When the value of this signal satisfiesthe specified trigger condition, data is collected. The trigger signal must be a Booleansignal, and the Trend Recorder can be configured to trigger on the signal being True oron a change of value. Data is collected for a specified time interval before and after thetrigger condition occurs. Once the data is collected, the Trend Recorder resumes watchingthe trigger signal for the next event. Each time data is collected, it is saved as a separateevent within the trend file.


Tip � Refer to Chapter 5 for further information on events.

� To set the size of the Trend Recorder Buffer

Increasing the value of thisfield also increases the amountof memory needed to runthe toolbox.

1. From theOptions menu, selectSettings .


3. Change the value in theTrender Memory Buffer size text box. (Referto the section,Trend Recorder Settings).

Add Signals Using Edit Menu

� To add a signal

♦ From theEdit menu, selectAdd Signal . The Add Signal toTrend Recorder dialog box displays.

Note The first time this function is invoked, the Select Device For Trend Signalsdialog box displays (shown in the section,Change Device). Select the device fromwhich to select the signal.

Add Signal

Tip � When trending signals from an Innovation Series controller, if a signal isselected using the Signal Selector, it can be qualified using appropriate qualifiers asfollows: The character (~), called a tilde, can be placed before Boolean signal to inverttheir sense. The character (#) can be placed before signals that are connected to I/Opoints to use the Signal Health bit and not the signal itself.

Change Device


Add Signals Using Drag-and-Drop

� To add a signal

The drag-and-drop featureallows you to trendautomatically named signalsfrom Innovation Seriescontrollers and drives.

1. From theBlock Area in the Summary View (or Detached SummaryView ), click a pin or a signal name in a block diagram.

2. Drag the signal (using the mouse) to the top view of the Trend Windowanddrop (release the mouse button). TheTrend Recorder ChannelConfiguration dialog box displays.

When a signal is added to the Trend Recorder from a controller, the toolbox checks to seeif the signal is an internal signal or an external DLAN+ signal. If it is an internal signal,token (address) information should exist in the device for the signal. This information isused to trend the signal.

If the signal is an external (DLAN+) signal, the toolbox attempts to find the signal in theSDB. If it finds the signal, it determines if the signal is available on the DLAN+ that thedevice is attached to. Then, the signal can be trended.

Note When a signal cannot be added or trending cannot be performed, an appropriateerror message displays. Follow the instructions from the message box to correct thesituation.

Once the signal is added to the trend, the range (upper and lower limits of Y-axis) andother properties related to the signal can be set in several ways (refer to the section,Editing Properties).

Edit Properties

� To set the signal range and other properties

Or click the right-mousebutton on the signal in theLower Signal View andselect Properties.

1. From theLower Signal View , click the desired signal.

2. From theEdit menu, selectEdit Selected Signal . Or, double-clickthe desired signal from the Lower Signal View. TheTrend RecorderChannel Configuration dialog box displays.

Note If the line width is greater than one, only aSolid Style is available.


Signal Scaling

If the signals being trended are internal signals (AcDcEx), the values defined allowsignals to use engineering units instead of raw (count) values. If they are external signals(controller), these fields are grayed-out and the scaling is defined in the database, andthe dialog serves a display-only purpose.

Edit Signals

� To remove a signal from the real-time trend

1. From the Lower Signal View of the Trend Recorder Window, click thesignal(s) to be removed. More than one signal can be removed at the sametime by selecting multiple signals in the list.

2. From the Edit menu, select Remove Signal.

� To select which signal’s range is displayed on axis

1. From theLower Signal View , select the signal(s) you want to display on the axis.

Or click the right-mouse buttonon the desired signal in theLower Signal View and selectLeft Axis or Right Axis (acheck mark displays besidethe selected signal).

2. From theEdit menu, select eitherShow on Left Axis or Show on Right Axis .A check mark displays beside the selected signal. Or, click the labels for either theleft or right axis. This will cycle through all the signals displayed on the graph.

The position of a signal in the signal list can be changed relative to other signals.

� To change the position of a signal in the signal list

1. From theLower Signal View , select the signal(s) to be moved.

Or click the right-mouse buttonon the desired signal in theLower Signal View and selectMove Up or Move Down.

2. From theEdit menu, select eitherMove Signal Up or Move Signal Down .

Signals in a list can also be hidden. If a signal is hidden, the data for that signal is stillcollected, but the signal is not displayed. For example, use this feature if a large numberof signals are collected and only part of the data needs to be displayed.

� To hide signals in the trend

1. From theLower Signal View , select the signal(s) you want to hide.

2. From theEdit menu, selectHide Signals . (To redisplay hiddensignals, selectShow Signals .)


Block Collected TrendsThe Trend Recorder can upload and display data collected by blocks in the controller ordrive. The Innovation Series controller and drive use the Capture Buffer block and theAcDcEx drive uses Circular List blocks (CLST1, CLST2, or CLST3) to collect data. TheCapture Buffer and Circular List blocks must first be configured to capture data. Once theblocks are configured, the Trend Recorder is set up to access data from these blocks.

Configure Block Collected Trend

� To set up the block collected trend

1. From theEdit menu, selectConfigure . The Trend RecorderConfiguration dialog box displays.

2. From theTrend Type option buttons, selectBlock Collected . If you have morethan one controller or drive open in the toolbox, you will be prompted to select one.

3. The dialog box changes to the Block Collected Trend Configuration.

Block Collected Trend Configuration


Note There can be more than one Capture Buffer block in a controller. There can onlybe one Circular List block in an AcDcEx device and only one Capture Buffer block inan Innovation Series drive.

The toolbox automatically configures the Trend Recorder to use the signals on the collectorblock (Capture Buffer or Circular List) configuration in the current device. Signals cannotbe added or removed from a block-collected trend; the configuration of the block must bechanged. All other operations on signals defined for real-time trending can be performed.

� To modify the block configuration

1. From theEdit menu, selectEdit Block .

2. Modify the block as desired.

Tip � Because configuring each type of device is different, refer to Chapter 4 of therelevant device manual for editing blocks.

Upload Data

� To view data from the collector block

♦ From theView menu, selectUpload Data .

If the trend is configured to automatically upload collected data, the toolbox monitors thestatus signal of the collector block and initiates an upload every time the block finishes acollection. While in this mode, theUpload button is in apressed state. To discontinuethe Upload mode, click thepressed Upload button again.

Note If the trend is configured for manual upload of captured data, a one-time uploadis initiated when the Upload button is clicked. When the upload is complete, the datadisplays on the graph.


Data Historian TrendsThe Trend Recorder can upload and displaydata collected by the Data Historian. TheData Historian is a service on a Windows NT platform. It can collect data continuously orupload Capture Buffers from a controller. The Data Historian configuration groups signalsinto collections. There are two types of collections: real-time continuous or CaptureBuffer uploaded. Collected data for each collection is stored in data collection analysis(.dca) format files.

Configure Data Historian Trend

� To set up a Data Historian trend


2. From theTrend Type option buttons, click theData Historian option. Thedialog box changes to the Data Historian Trend Configuration.


Add Signals

� To add signals to the Data Historian trend

♦ From theEdit menu, selectAdd Signal . The Data HistorialSignal Selection dialog box displays.

Select Signals from a Collection

If signals are added to the trend from more than one device, the Lower Signal Viewdisplays the name of the device before the name of the signal as follows:

After all the signals are added, the Trend Recorder reads data from the Data Historian hostand graphs the data (refer to the section,Recording Trends). Signal settings can be editedthe same as for real-time trends.


.dca File TrendsThe Trend Recorder can read data from data collection analysis (.dca) files. These filesprovide a standard format for storing data and can be written by many different softwareapplications.

Configure .dca File Trend

� To set up a .dca file trend


2. From the Trend Type option buttons, click theDCA File . The dialog boxchanges to theDCA File Trend Configuration .

3. Click OK. The file list is read and a trend is generated. (Referto the section,Recording Trends)


.d04 File TrendsIt is possible to create a trend for combustion dynamics monitoring (CDM). CDM reportsconditions inside the combustion chamber (Can) of a turbine to the plant power controlsystem, and notifies the control room operator of any potential problems.

� To set up a .d04 file trend

1. From theFile menu, selectOpen . TheOpen dialog box displays.

2. From theFiles of type drop-down list, select*.d04 and locate the file.

When the file opens, a trend of the historic data is created. Analog data is plotted againstthe X-axis samples. FFT data is plotted against the X-axis frequency.

Note When a .d04 file is opened for the first time, it is plotted against samples andonly the first scan data for all Cans in the file displays. The signal names display asScan number and Can number, for example, Scan1/Can1.


The status bar displays the following information.


� To change the plotting mode


� To configure a CDM real time trend


2. Click the Online button.

If analog data is received, it is plotted against samples. If FFT data is received, it is plottedagainst frequency. The time stamp on the status bar is updated.

� To import and export CDM data


� To select scans to display


Notes


Chapter 4 Using the Trend Recorder

IntroductionThe following sections describe how to record, save, export, and print a trend. Oncerecorded, the displayed trend can be viewedon the screen just as it would be printed, oryou can select to print a hard copy.

Record TrendsAfter you have added the signals to the trend, you must record the data to view the trendon the graph.

� To record the trend

♦ From theView menu, selectRecord .

♦ When you want to stop recording, selectRecord again from theViewmenu, or click theRecord button again.

♦ When you clickRecord button, theOpen Device Files dialogbox displays if the trend document is having major difference withconfiguration on at least one connected device.

You need to open the device files with major differences in order to synchronize thesignals on trend recorder with the device.

� To open device files

1. Select the device files to be opened inOpen Device Files dialog.

2. Click the Open button.

Note However, if the device file has a major difference with the device, signals intrend recorder will not be synchronized with the device.

GEH-6408 Chapter 4 Using the Trend Recorder User Guide 4-1

� To pause the recording

♦ From theView Menu, selectPause .

♦ When you want to resume updating the graph and view the recording process, selectPause again from theView menu, or click thePause button again.

Note If the data cannot be viewed within the range you selected, you can modify therange either by using the Channel Configuration dialog box (refer to the section,EditingProperties), or by selecting Auto Range Vert. Axis from the Edit menu.

Save TrendsTrends can be saved to files for later replay and analysis. The files have the extension.trn. If the trend is attached to a device when saved, the trend defaults to theTrendssub-directory, under the directory of the device being trended. If the trend is not attachedto a device, such as a Data Historian collected or .dca file trend, the trend defaults to thecurrent working directory.

If you want to save just the setup that was recorded, this option must be selected inthe Trend Recorder Configuration dialog box under Save Mode. (Refer to the section,Configuring the Trend.) The default for the Save Mode is Setup and Data.

� To save the trend

1. From theEdit menu, selectConfigure .

2. From theTrend Recorder Configuration dialog box, select thedesiredSave Mode and click OK.

3. From theFile menu, selectSave or Save As .

� To open a previously saved trend

♦ From theFile menu, selectOpen . Select the device directory and then theTrends sub-directory. Use the filename with the .trn extension.


Import Trends From .csv filesTrends can be imported from a comma separated value (.csv) files. It is also possibleto import:

• Data in to trend documents that contains previously imported data.

• Multiple trend .csv files together

• Without Time column in .csv file

A typical .csv file format is as follows:

Time,SignalName1,SignalName2,SignalName3Min,MinValue1,MinValue2,MinValue3Max,MaxValue1,MaxValue2,MaxValue3Time1,SigValue11,SigValue21,SigValue31Time2,SigValue12,SigValue22,SigValue32

....

....

....

Note:

The first row contains the signal names.The second and third rows contain the minimum and maximum values for the respectivesignals.

The default options arestandard .csv format and shouldonly be changed if you havespecial format requirements.

� To import data

1. Open the trend you want to import in theTrend Recorder .

2. From theFile menu, selectImport Trend Data . ThenSelect CSVFile for Import dialog box displays.

3. Select the desired signal check box(es) and click ok.

GEH-6408 Chapter 4 Using the Trend Recorder User Guide 4-3

Export Trends to .csv FilesTrends can be exported to a comma separated variable (.csv) file. Then, this text file canbe imported by spreadsheets, such as Microsoft Excel or other applications.

� To export data

The default options arestandard .csv format and shouldonly be changed if you havespecial format requirements.

1. Open the trend you want to export in theTrend Recorder .

2. From theFile menu, selectExport Trend Data . TheTrender ExportData Options dialog box displays.

3. Select a new format for the output file, if needed. (Refer to thesection,Trender Export Data Options.)

4. Enter a filename for the .csv file.

Trender Export Data Options

Print TrendsThe currently displayed trend can be printed or print previewed.

� To pri nt a trend

♦ From theFile menu, selectPrint .


Chapter 5 Viewing Trends

IntroductionAn event is a set of datarecorded without interruption.

When the Trend Recorder is not recording or uploading data, it is in replay mode. Inreplay mode, there can be multiple events stored in the trend.

• For real-time continuous recording, there is an event each timethe Record mode is selected.

• For real-time triggered recording, there is an event each time thetrigger condition is satisfied.

• For block-collected recording, there is an event for every upload that occurs.

• In Data Historian and .dca file trends, all data is maintained in asingle continuous event (only one event).

GEH-6408 Chapter 5 Viewing Trends User Guide 5-1

Move Between EventsWhile in Replay mode, you can view multiple events.

� To access other events

Or select the View menu for alist of all view commands.

♦ From the toolbar, click to view the next event.

— Or —

♦ From the toolbar, click to view the previously displayed event.

Note When you move between events, the Status bar shows which event is currentlydisplayed.

� To move backward or forward within an event

Or select Rewind or Forwardfrom the View menu.

♦ From the toolbar, click or . These buttons move back or forward within thecurrent event by one-third of the currently displayed width of the time axis.


Change Time AxisThe range of the time axis can be changed by using theTrender Time Axis dialogbox, or see the section,Zoom In/Zoom Out.

� To edit the time axis

♦ From theEdit menu, selectTime Axis . TheTrender Time Axis dialog boxdisplays. This dialog box varies depending on the type of trend.

Real-time andblock-collected trends require a single range in seconds.

Data Historian and.dca file trends allow you to set Start and End dates and times. (Referto the section,Data Historian/.dca Time Axis.)

Trender Time Axis

Set the range in the following dialog box for real-time and block-collected trends.

Set start and end dates and times in the following dialog box for Data historian/.dcafile-based trends.


Use Replay CursorsReplay mode has two moveable cursors: a left cursor and a right cursor. The active cursordisplays white and can be moved using the mouse or arrow keys on the keyboard.

� To move a cursor using the mouse

1. Place the mouse pointer at the top of the cursor and click. The cursorturns white to indicate it is active.

2. With the mouse pointer at the top of the cursor, press and hold the left mousebutton and drag the cursor right or left to the desired position.

� To move a cursor using the arrow keys

1. The active cursor is white. Press theTab key to toggle the active stateof the cursors, and select the desired cursor.

To move the cursor faster, pressand hold the Shift key as youpress the arrow key.

2. Press and hold the right or left arrow key to move the cursor to the desired position.

If the cursor is placed exactlyon one sample, the value willhave an asterisk beside it.

As the cursor is moved, its values are displayed on the Status bar as follows:

• Left value is the value of the left cursor

• Middle value is the value of the right cursor

• Right value displays the difference between the two cursors

Note The Status bar also indicates the time of each of the cursors and the differencebetween the times.


Zoom In/OutWhen the Trend Recorder is in Replay mode, you can zoom in and out of the trend.

� To zoom in on the trend

♦ From theView menu, selectZoom In . The view of the trend zooms in to the areabetween the cursors. The cursors are repositioned to be at the left and right edgesof the displayed area. The range ofthe vertical axis does not change.

— Or —

Place the mouse pointer at the top-left corner of the area you want to enlarge. Click andhold the left-mouse button, then drag the pointer to the bottom-right corner of the area.

� To zoom out of the trend

♦ From theView menu, selectZoom Out . The view of the trend zooms out tothree times the width and height currently being displayed. Zoom Out stopswhen the width and height reach their original values.

— Or —

Place the mouse pointer at the bottom-right corner of the area to you want to reduce. Clickand hold the left-mouse button, then drag the pointer to the top-left corner of the area.


Stacked Signal TracesA trace is a visible pathof a signal.

In the default view for displaying graphs,all traces are on one common graph. To vieweach trace separately, place the Trend Recorder instacked view.

� To view Stacked Traces

To return to normal view, selectStacked Traces again.

♦ From theView menu, selectStacked Traces . A check mark () displaysbeside the commange when in stacked mode.

The order of signals in stacked mode matches the order in the Lower Signal View of theTrend Recorder window. If there are too many traces in one graph to display every signalin stacked view, the Trend Recorder automatically returns to normal view. To adjust thenumber of signal traces in a view:

♦ Maximize the size of the screen.

Or remove signal(s) from the list in the Lower Signal View. (From theEdit menu, selectRemove Signal ).

Or select a smaller screen font size. (From theOptions menu, selectSettings , thenclick theTrending tab).

� To change the position of a signal in a stacked trace

1. From theLower Signal View , click the signal(s) to move.

2. From theEdit menu, select eitherMove Signal Up or Move Signal Down .

Or click the desired signal with the right-mouse button.

3. From the pop-up menu, selectMove Up or Move Down .


Auto-Range Displayed DataThe auto-range function examines the range of values for each selected signal in the timerange currently displayed on the Trend Recorder. The range of each signal is then adjustedto display the graph using as much of the display area as possible.

� To auto-range the displayed data

1. From theLower Signal View , select the signals.

2. From theEdit menu, selectAuto Range Vert. Axis .

� To revert to the previous ranges

1. From theLower Signal View , select the signals.

2. From theEdit menu, selectAuto Range Vert. Axis again.


X-Y PlotsThe Trend Recorder can convert plots of data that have been recorded in real time andre-plot the data where one (or more) of the variables in the trended set is designated as theX-axis. X-Y plots are normally created using the data between the replay cursors.

There are two modes of X-Y plots:

• Between Cursor mode, which is the normal mode, plots the values thatare between the two cursors against the designated X-axis. This mode ofX-Y plots is available for all types of trends.

• At Left Cursor mode is availableonly for Data Historian collected trends. In thismode, the X-Y plot is generated using the entire data set in the individual .dca datafile(s) that contain the sample time currently at the left cursor. This would typically beused to do an X-Y plot of all the data for an individual unit of a batch manufacturingoperation, where data for each unit in the batch is collected in its own .dca file.

The value either increasesor decrease.

The signal used as the X-axis must have a monotonically changing value over the timespan that data is to be plotted.

� To create an X-Y Plot using a single X-axis signal

1. Obtain a plot of data using any of the methods of collecting data.

2. Select one of the signals to be the X-axis. Click the signal in theLowerSignal View of the Trend Recorder.

3. From theEdit menu, selectSet As X Axis .

4. Position the replay cursors to the start and end times of the data to plot in X-Y mode.

5. From theView menu, selectX-Y Plot Mode .

6. Repeat step 5 to return to time-based mode.


� To generate an X-Y Plot using multiple X-axis signals

Plots using multiple signals for the X-axis can be used when there is a Data Historiancollected trend and that trend contains data from multiple collections. One signal fromeach collection can be specified as an X-axis. All the other signals from that collection areplotted against the values of that signal.

1. Obtain a plot of data using any of the methods of collecting data.

To select multiple signals,Shift/click and Ctrl/click.

2. Select the signals to use for the X-axis. Click multiple signals in theLower Signal View of the Trend Recorder.

3. Position the replay cursors to the start and end times of the data to plot in X-Y mode.



� To generate an X-Y plot using all the data from .dca files

An X-Y plot for all the data can also be obtained in an individual event file. This functionworks only with Data Historian collected trends and is most commonly used with CaptureBuffer collections.

1. From theEdit menu, selectConfigure .

2. From theX-Y Plot Mode options, selectAt Left Cursor .

3. Obtain a plot of data in time-based mode using any of the methods of collecting data.

To select multiple signals,Shift/click and Ctrl/click.

4. Select the signals to use for the X-axis. Click multiple signals in theLower Signal View of the Trend Recorder.

5. Position the left cursor somewhere in the middle of the data eventthat you wish to plot in X-Y mode.




Power SpectrumThe Trend Recorder can perform a spectral analysis on plots of real-time data and displaythe power spectrum of the recorded data. The Trend Recorder uses a Fast FourierTransform (FFT) to convert the data from the time domain to the frequency domain.Power spectrum plots may be obtained from any trend but are most reliable with dataobtained using a block-collected trend. Power spectra of data collected using real-timetrending, especially of data coming across networks, should be regarded as unreliable.

� To create a Power Spectrum plot

1. Obtain a plot of data using any of the types of collecting data.

Best results will be obtained when data is collected using block-collected trends with thecapture block configured to collect a number of samples that is a power of 2 (such as 512,1024, 2048). The more samples collected, the better the resolution of the power spectrum.

2. From theView menu, selectPower Spectrum . The FFTOptions dialog box displays.

FFT Options

Note A variety of windowing functions (such as Hanning, Hamming, Bartlet,Welch, and others) are available to minimizephenomena associated with the discretetime-window nature of the collected data. Refer to other signal processing theorytextbooks for explanations of the theory of operation of Fast Fourier Transforms, suchasIntroduction to Communication Systems, Ferrel G. Stremler;Electrical Noise, W. R.Bennett;Circuits and Systems: A Modern Approach, A. Papoulis.


Glossary of TermsAcDcEx2000 Refers to the dc drives (DC2000), ac drives (AC2000), and exciters(EX2000), which are all referenced in the combined device type name. These threedevices can use the same application control boards and devices in the toolbox.

automatically named signals Signals that are created as a result of inserting someinstruction block(s) other than a Signal Definition. One or more regions of such signals isof the form }00123.

bit Binary Digit. The smallest unit of memory used to store only one piece ofinformation with two states, such as One/Zero or On/Off. Data requiring more than twostates, such as numerical values 000 to 999, requires multiple bits (see Word).

block Instruction blocks contain basic control functions, which are connected togetherduring configuration to form the required machine or process control. Blocks can performmath computations, sequencing, or continuous control. The toolbox receives a descriptionof the blocks from the block libraries.

board Printed wiring board.

Boolean Digital statement that expresses a condition that is either True or False. In thetoolbox, it is a data type for logical signals.

collection A group of signals found on the same network. The Trend Recorder can beconfigured by adding collections.

COM port Serial controller communication ports (two). COM1 is reserved fordiagnostic information and the Serial Loader. COM2 is used for I/O communication

configure To select specific options, either by setting the location of hardware jumpersor loading software parameters into memory.

device A configurable component of a process control system.

DLAN+ GE Industrial System's LAN protocol, using an ARCNET controller chipwith modified ARCNET drivers. A communications link between exciters, drives, andcontrollers, featuring a maximum of 255 drops with transmissions at 2.5 MBs.

event A property of Status_S signals that causes a task to execute when the value ofthe signal changes.

Finder A subsystem of the toolbox for searching and determining the usage of aparticular item in a configuration.

font One complete collection of letters, punctuation marks, numbers, and specialcharacters with a consistent and identifiable typeface, weight, posture, and size.

function The highest level of the blockware hierarchy and the entity that correspondsto a single .tre file.

groups See Resources.

health A term that defines whether a signal is functioning as expected.

heartbeat A signal emitted at regular intervals by software to demonstrate that itis still active.

I/O Input/output interfaces that allow the flow of data into and out of a device.

GEH-6408 Glossary of Terms 1

item A line of the hierarchy of the Outline View of the toolbox, which can be inserted,configured, and edited (such as Function or System Data).

Live Data Server A Windows NT Service which gathers data from one or morenetworks and delivers it to the Trend Recorder in real-time. This service is installedwith the Data Historian product.

logical A statement of a true sense, such as a Boolean.

online Online mode provides full CPU communications, allowing data to be both readand written. It is the state of the toolbox when it is communicating with the system forwhich it holds the configuration. Also, a download mode where the device is not stoppedand then restarted.

period The time between execution scans for a Module or Task. Also a property of aModule that is the base period of all of the Tasks in the Module.

pin Block, macro, or module parameter that creates a signal used to makeinterconnections.

Resources Also known as groups. Resources are systems (devices, machines, orwork stations where work is performed) or areas where several tasks are carried out.Resource configuration plays an important role in the CIMPLICITY system by routingalarms to specific users and filtering the data users receive.

service Functionality derived from a particular software program. For example, theRecorder Service transmits and provides conversion of data in the SDB.

signal The basic unit for variable information. Signals are the placeholders for memorylocations in the toolbox’s different platforms.

task A group of blocks and macros scheduled for execution by the user.

toolbox A Windows-based software package used to configure controllers and drives.

trend A time-based plot to show the history of values.

Trend Recorder A subsystem of the toolbox that monitors and graphs signal valuesfrom a controller or drive.

Windows NT Windows New Technology. Advanced 32-bit operating system fromMicrosoft for 386s and above. It runs NT-specific applications as well as those written forDOS, Windows 3.x (16 and 32-bit), OS/2 character mode (non-graphical) and POSIX. NTdoes not use DOS; it is a self-contained operating system.

word A unit of information composed of characters, bits, or bytes, that is treated asan entity and can be stored in one location. Also, a measurement of memory length,usually 4, 8, or 16-bits long.

2 Control System Toolbox for the Trend Recorder

GE Energy

1501 Roanoke Blvd.

Salem, VA 24153–6492 USA

1 540 387 7000

www.geenergy.com

http://www.geenergy.com

05 geh-6408 trend recorder

Documents

ge products

understoodthat ge

ge requisition

technical information

nearest ge sales

ge energydocumentation

ge internal dc

ge energy geh