Home

1771-6.4.5, Temperature Control Module, Programming Manual

1. Entering Loop Settings Enter loop settings values within the stated ranges In each case where a decimal point is shown if you want to enter a digit to the right of the decimal point you must type in the decimal point The decimal point is not inferred In this field Enter this value Loop Mode Control Monitor or Off Alarm Enable Enable or Disable Run Standby Run or Standby Auto Manual Auto or Manual SP Ramp Enable enable or disable SP Ramp Hold Ramp or Hold When Hold is selected during set point ramping the ramp will be stopped and the set point will hold at its current value When Ramp is selected the ramp will continue normally After changing the selection you must perform a download for your change to take effect If Setpoint Ramping is disabled this setting has no effect Note This feature is only supported in Module Firmware Version 3 3 and later Run Setpoint 0 0 thru 3276 7 Standby Setpoint 0 0 thru 3276 7 Manual Output Value 100 00 thru 100 00 Publication 1771 6 4 5 January 1997 7 4 Monitoring and Controlling the Loops Module Monitor Screen Publication 1771 6 4 5 January 1997 To Cancel At any time at the change settings dialog box you can select Cancel This will cancel all of your selections at this dialog box and return you to the Loop Monitor screen To Download Once you have entered the appropriate values at the change settings dialog
2. If you want to edit the project description that shows on the first screen from the Project pull down menu you can select Description The project description is also printed when you print a project Change Project Description Name Projecti Description Information you enter here is displayed on the project d screen when Project 1 is selected and is printed as part of the project documentation when a project is printed Modifying an Existing To change the Name PLC Node Port Data Table Address Rack Module Group or Slot of an existing module 1 At the Module Manager screen select the module you wish to modify 2 From the Module menu select Modify The Modify Module dialog box appears with the current settings shown 3 Make the desired changes and click on OK What to do next To learn how to configure the temperature control module read chapter 4 Publication 1771 6 4 5 January 1997 Configuration Selections Uploading and Downloading Information Chapter 4 Configuring the Modules This chapter shows you how to configure the 1771 TCM module This includes e configuration selections uploading and downloading information accessing the Module Configuration screen downloading configuration values e uploading configuration values e module description copying configuration values from one module to another copying configuration values from one module into
3. Tuning Configurator Project_1 Loop01 Hg Loop Module Help Aggressiveness 100 0 oyotem Meeponge Slow Disturbance Size Med Fast Integral Term Reset Values updated from PLC 3 Enter your desired settings for aggressiveness and disturbance size and select the desired system response Note The Integral Term Reset button is not used during tuning configuration Refer to Chapter 7 for information on using the Integral Term Reset button 4 Download the tuning parameters Publication 1771 6 4 5 January 1997 6 4 Tuning the Loops Auto Tuning the Loops Publication 1771 6 4 5 January 1997 Before you can auto tune a loop you must satisfy these prerequisites Barrel loops must be at least 50 degrees F below the run setpoint before tuning is started we recommend that you make the difference 100 or 150 degrees The TPO period you configured for the loop should be less than the system lag time Lag time is the delay that occurs between a change in loop output and the start of the resulting temperature change If the TPO period is longer than the lag time the calculated gain values will not provide good control Auto Tuning Procedure To start up and auto tune loops follow this procedure 1 At the Module Manager screen select the module for which you want to tune a loop or group of loops 2 From the Module pull down menu select Tuning Assistant The Tuning Assistant screen a
4. wy Allen Bradley Temperature Control Module Cat No 1771 TCM Configuration Software Release 1 0 TemperatureControl 1771 Configurator Programming Manual Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards The illustrations charts sample programs and layout examples shown in this guide are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Allen Bradley does not assume responsibility or liability to include intellectual property liability for actual use based upon the examples shown in this publication Allen Bradley publication SGI 1 1 Safety Guidelines for the Application Installation and Maintenance of Solid State Control available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or in part without written per
5. U The Upload dialog box appears Upload Choose either upload from the PLC Q restore from the disk file 2 Select your desired upload source and click on OK Publication 1771 6 4 5 January 1997 5 12 Configuring the Loops Using One Loop to Configure Another Publication 1771 6 4 5 January 1997 If you have several loops that are similar or identical you can configure one loop and then use that loop to configure the other similar loops To copy configuration data from one loop to another 1 At the Module Manager screen select the loop that has the desired configuration i e the source loop 2 From the Edit menu select Copy The values from the source loop will be placed on the Windows clipboard 3 Select the second i e destination loop The destination loop can be in the same module a different module or a different project 4 From the Edit menu select Paste into selection 5 Go to each configuration screen for the destination loop view the pasted data make any required changes and then download to a file to the PLC processor or both to save the pasted data To save all configuration parameters you must do this from the Loop Configuration screen Tuning Configuration screen and the Tuning Results screen since each of these screens downloads or uploads only those parameters shown on the screen Note When you open a screen that has pasted data the automatic upload from
6. deadtime plus the time constant this time is available from the autotune results If the TPO period is greater than the lag time the auto tuning will calculate large gain values which will probably cause the temperature to overshoot the set point Accessing the Loop Configuration Screen Configuring the Loops 5 7 In general a smaller TPO period provides smoother control unless the minimum on time is greater than 10 of the TPO period If the the minimum on time is greater than 10 of the TPO period the TPO signal will not be able to provide any control of the temperature until the temperature has moved away from the set point far enough to require a 10 TPO signal A long minimum on time reduces wear on the heating or cooling contactors by reducing the cycling when the duty cycle is low However a short minimum on time provides smoother control especially if the TPO period is short To configure a loop access the Loop Configuration screen as follows 1 At the Module Manager screen select the module 2 Select the loop to configure 3 From the Loop pull down menu select Configure Displaying the popup Loop menu To display a popup version of the Loop menu click on the right mouse button while the cursor is over the loop list The Loop Configuration screen for the loop you selected appears Loop Configuration Screen Project 1 Loop001 Loop Module Help Setpoints Alarm Settings 1 Run S
7. Interfaces with PLG PIODBSSOIS 2 124 PRI DERPRRP TS EDRREDPPREYS ees _1 3 Data Table Interface Area 0 1 ees _1 4 Communication Control Bits 0 00 cece ee ees _1 6 What to do next 2 cca cece teen teen eee a hne _1 6 Installing the Software Lise 2 1 Requirements for Your Computer ssluuussesee _2 1 Preparation for Installing the Software sse _2 2 Convention a ced eicw su eR ERES _2 2 Installation Procedure 0 0 c cece cence eens _2 2 Starting the Software 0 0 0 ccc cece eee _2 9 Using Online Help 5 2 scke ca sdaeidec ud R44 Rn no Rez _2 10 Whatto do next cus cia ee tk he Ree oe See Ee Es _2 10 Organizing the Project File 0eeeeeeeees 3 1 The Temperature Control Project File 2 05 3 1 Creating a Project File 0 cece cece eee eee _3 1 Adding Modules to the Project File 0 000 _3 3 Modifying an Existing Module 00eeeeeaee _3 4 WRhatto do next uiuos dete ve da ERG E REX AA ER peeta a _3 4 Configuring the Modules lees 4 1 Configuration Selections nnna cee eee eee eee 4 1 Uploading and Downloading Information 4 1 Accessing the Module Configuration Screen 4 2 Downloading Configuration Values llis _4 4 Uploading Configuration Values 00 cee e ee eee 4 5 Table of Contents Module D
8. Program Manager from the File pull down menu select Run The Run dialog box appears E onn ucc MKG D G A Command Line a setup C Run Minimized Publication 1771 6 4 5 January 1997 Installing the Software 2 3 2 Insert disk 1 of the Configuration Software into drive a 3 On the command line type a setup 4 Click on OK The software initialization screen appears as well as a completion percentage graph that indicates initialization status Once initialization is complete the Welcome screen appears Welcome This program will install Temperature Control Configuration Software on your computer Press the F1 key at any time to display Installation Help It is strongly recommended that you exit all Windows programs before running this Setup program Click Cancel to quit Setup and then close any programs you have running Click Next to continue with the Setup program TemperalureControl WARNING This program is protected by copyright law and international i771 Configurator treaties Unauthorized reproduction or distribution of this program or any portion of it may result in severe civil and criminal penalties and will be prosecuted to the maximum extent possible under law Cancel 5 Click on the Next button to continue with the installation A prompt appears asking you if you wish to read the readme file Viewing the Readme file Any last minute changes or additions to t
9. Software e MS DOSO v5 0 or later Microsoft Windows v3 1 or v3 11 Windows for Workgroups 3 11 or Windows 95 If you are using Windows 3 1 or 3 11 we recommend a permanent swap file of at least 10 Mbytes TemperatureControl Configuration software e INTERCHANGE e Win32s if you are using Windows 3 1 3 11 or Windows for Workgroups 3 11 Publication 1771 6 4 5 January 1997 2 2 Installing the Software Preparation for Installing The Temperature Control configuration software includes three sets the Software of disks This set Installs 1 3 disks The configuration software itself 2 2 disks Win32s software Windows 3 1 or 3 11 only 3 2 disks INTERCHANGE software p Getting help while installing TemperatureControl software Press F1 to display installation help e Click on Cancel to abort the installation You can run the installation setup a second time to complete an aborted installation see page 2 2 Ifa serious error occurs during the installation view the text file INSTALL LOG in your root directory This file may help you figure out what the problem is Convention These instructions assume the 31 inch disk is to be inserted into drive a of your computer If drive a is not used replace the a in these instructions with the appropriate drive designation Installation Procedure To install the TemperatureControl configuration software follow these steps 1 In the Windows
10. Used by the example ladder logic as BT identity bits 2 Used by the example ladder logic as BT check mask 3 Used by the example ladder logic as Cycle sequence number 4 Used by the example ladder logic as Loop offset value 5 Used by the example ladder logic as Data table file offset 6 Not used by the example ladder logic 7 Not used by the example ladder logic 8 Not used by the example ladder logic 9 Used by the example ladder logic as TPO bits single transferred 10 39 Loop 1 configuration block 26 words 40 69 Loop 2 configuration block 26 words 70 99 Loop 3 configuration block 26 words 100 129 Loop 4 configuration block 26 words 130 159 Loop 5 configuration block 26 words 160 189 Loop 6 configuration block 26 words 190 219 Loop 7 configuration block 26 words 220 249 Loop 8 configuration block 26 words 250 309 Gains block 57 words 310 349 Dynamic block 34 words 350 419 Status block 64 words 420 479 Auto tune block system ID data 57 words 480 549 Scratch pad area addressed by the block transfer write instruction 64 words 550 613 Scratch pad area addressed by the block transfer read instruction 64 words Publication 1771 6 4 5 January 1997 Interfacing with the Temperature Control Module 1 5 To establish a TCM project file you must enter the starting address of this interface area for each Temperature Control mo
11. a new module moving a module from one project to another On the module configuration screen you are given several configuration selections to establish However your selections do not control the PLC data table values in real time These selections do not take effect until you download the selection to the PLC data table interface area The configuration software can write download configuration information directly to the PLC data table in online mode or it can write it to a disk file in off line mode Similarly the configuration software can also read configuration information from the PLC processor or from a file In order to use online mode you must have a DH or serial connection with the PLC processor and INTERCHANGE must be properly configured and running When you write configuration data to a file it is stored as part of the project file It is a good idea to always download to both the file and to the PLC processor This way the file retains a copy of all of the configuration data you can then use this copy to restore the configuration data to the PLC processor if that information is ever lost or damaged Downloading to the file alone lets you perform configuration functions while you are disconnected from the PLC processor Once you are attached to the PLC processor you can transfer information from the file to the processor by first uploading from the file and then downloading to the processor When you are simply
12. box you can download them to the PLC data table interface area by selecting Download From this dialog box you can not download to the disk file To monitor the common functions of a particular module at the Module Manager screen select the module from the Module menu select Monitor The Module Monitor screen appears Temperature Control Module Monitor testmod Module Loop Help Loop l 215 Control DAANA YW nEE CS Module Status Cold Junction Temperature estmod Cold junction temperature is below 0 degrees C Loop01 All alarms are suppressed Loop01 Power has been interrupted since valid parameters have been block transferred Loop01 Parameter value error Loop01 Error in configuration block parameter at word 3 L oop02 All alarms are suppressed Loop02 Temperature sensor circuit is open L oop02 Parameter value error onns to oe E Changing loop settings Double clicking on a loop opens the Change Settings screen for that loop Reports Printing or Viewing an Entire Project Chapter 8 Documenting Projects Modules and Loops This chapter shows you how to use the Temperature Control Module Configuration software to produce a printed record of your system including descriptive information for each project module and loop as well as the values of all configuration parameters This includes reports e printing or viewing an entire project printing a single
13. entire module from the PLC processor and then save it to the disk file without having to go to eight separate screens and perform eight separate uploads and downloads Because this command if used improperly can alter data you did not intend to alter you are prompted for confirmation when you attempt to perform a module upload Publication 1771 6 4 5 January 1997 4 6 Configuring the Modules Module Description Copying Configuration Values From One Module to Another Publication 1771 6 4 5 January 1997 You can enter descriptive information for each module This can be any information you wish to associate with the module such as physical location product being manufactured etc You can view this information at any time it is included in printed reports as well To enter or view the module description 1 At the Module Manager screen select a module 2 From the Module menu select Description The Module Description screen is displayed for the module you selected Change Module Description Name tempconl Description Descriptive information for the module named tempconi rae EN 3 Enter or edit the description for the module and click on OK If you have several modules that are similar or identical you can configure one module and then use that module to configure other similar modules Note Before you do this you may wish to perform the loop configuration described i
14. integrator During non office hours contact the Allen Bradley 24 hour Hot Line at 1 800 422 4913 in the United States or contact your local Customer Support Center outside the United States Customer Support Center phone numbers Region or Area Customer Support Center Telephone Number United States Cleveland 216 646 6800 Canada Cambridge Ontario 519 623 1810 Latin America Milwakee 414 382 2000 United Kingdom Milton Keynes 44 908 838800 31 2975 43500 83 1 4778 1402 Germany Gruiten 49 2104 6900 Italy Milan 39 2 4830 0381 Asia Pacific Hong Kong 852 873 1342 Europe Amsterdam France Paris Publication 1771 6 4 5 January 1997 9 Rockwell Automation Allen Bradley a Rockwell Automation Business has been helping its customers improve productivity and quality for more than 90 years We design manufacture and support a broad Allen Bradley range of automation products worldwide They include logic processors power and motion control devices operator interfaces sensors and a variety of software Rockwell is one of the world s leading technology companies Worldwide representation PE dae Lp d A jai arrm m M Argentina e Australia e Austria e Bahrain e Belgium e Brazil e Bulgaria e Canada e Chile e China PRC e Colombia e Costa Rica e Croatia e Cyprus e Czech Republic e Denmark e Ecuador e Egypt e El
15. is to switch when an open input circuit is detected in automatic mode The selections are disable the PID loop by forcing the manipulated variable M value to zero set the output to the open circuit forced M value e set the loop to the manual mode force M to manual output value Publication 1771 6 4 5 January 1997 Barrel Non Barrel Control Configuring the Loops 5 3 Under control type you select between barrel and non barrel control Barrel control can be used for either heat only or heat cool applications Non barrel control can be used for either heat only cool only or heat cool applications Barrel control is for multiple zone applications in which there is thermal conduction between the zones Injection molding and extruding are good examples of this because there are multiple heater bands zones mounted on one thermal conductor the metal barrel The barrel conducts heat between the different zones If you select barrel control you must also select between inner and outer zone If you select barrel control the non barrel auto tune disturbance size does not apply A barrel loop is auto tuned as the temperature rises from ambient to a fixed set point during startup Non barrel control is for independent loops with no thermal conduction between the zones If you select non barrel control the inner outer zone selection does not apply If you select non barrel control the loop is auto tuned as it reacts to the set p
16. progress RS EAE CR GR E ERA co N co wo m N e E m Loop Loop Loop Loop e E l Loop Loop Write configuration block Write auto tune block Read auto tune block Wite gains block Read gains block To learn how to install the Temperature Control configuration software read chapter 2 Requirements for Your Computer Chapter 2 Installing the Software This chapter shows you how to install the TemperatureControl configuration software for the 1771 TCM module This includes requirements for your computer preparation for installing the software installation procedure e starting the software using online help To use the TemperatureControl configuration software your system must meet these requirements Hardware e computer with an 80386 or greater microprocessor 80486 or Pentium recommended atleast 12 Mbytes of RAM hard drive with adequate free disk space 12 Mbytes or greater 1 44 Mbyte floppy disk drive for installing the software e VGA or higher resolution adapter monitor with small fonts We support 640x480 800x600 1024x786 modes We recommend a Super VGA resolution adapter monitor mouse e DH port on KT or KL type module or standard serial port Connection e If you connect to the PLC processor through a DH port the computer and the PLC processor must be on the same DH link
17. tailor the auto tuning process to suit particular applications aggressiveness disturbance size and system response e Aggressiveness The aggressiveness setting affects how the module controls the loop during start up in barrel control mode Start up is the period between the time the loop is placed in Automatic control at a low initial temperature and the time it first nears the setpoint This setting can range from 0 to 100 A setting of 0 minimizes the chance of overshoot during start up but increases the time needed to reach the setpoint A setting of 100 minimizes start up time but will result in the temperature overshooting the setpoint during start up This setting does not affect the quality of the control once the start up period has passed During an ideal start up the temperature should rise steeply toward the setpoint As the temperature nears the setpoint the rate of climb should gradually level off until the temperature reaches the setpoint If the temperature drops for a while after the initial climb before slowly climbing toward the setpoint you should increase the aggressiveness e Disturbance Size non barrel loops only Disturbance size is the percentage of the step change made in the output during auto tuning of non barrel loops The disturbance size setting can range from 0 00 to 100 00 Note A setting of 0 00 is equivalent to a setting of 100 00 Configuring Tuning Parameters Tuning the Loops 6 3 Si
18. the PLC processor or the file is inhibited to prevent overwriting the pasted data and the status pane displays the message Values pasted from clipboard When you paste into a loop the name of the destination loop remains the same but all the configuration values are replaced with those from the source loop The values used from the source loop are those that were last displayed on the configuration screens for that loop In other words if you perform an upload from a file for the source loop and then perform a copy command the values that are placed on the clipboard are those from the file whereas if you perform an upload from the PLC processor prior to performing the copy the PLC values are placed on the clipboard Configuring the Loops 5 13 Loop Description You can enter descriptive information for each loop This can include any information you wish to associate with the loop such as physical location product being manufactured etc You can view this information at any time it is also included in the printed reports To enter or view the loop description 1 At the Module Manager screen select a loop 2 From the Loop menu select Description The Loop Description screen appears for the loop you selected Change Loop Description Name Loop001 Description Descriptive information for Loop001 3 Enter or edit the description for the loop and click on OK What to do next To learn how to tune the l
19. the module If you are using a DF1 link to the PLC processor this value is ignored Port The INTERCHANGE port the software should use to communicate to the PLC processor These ports are defined when you run the INTERCHANGE configuration utility Most users configure only one port and it will appear by default If you have more than one port configured click on the arrow to display the list DT Address The starting address of the contiguous data table area for interfacing with the module See chapter 1 on details of how this interface area must be arranged Rack No The I O rack number for the module location address Group No The I O group number within the I O rack for the module location address Slot No 0 The I O module slot number within the I O group The rack group and slot numbers are for screen display reference only It is up to your ladder logic to provide block transfer to and from the correct location address for the module Publication 1771 6 4 5 January 1997 3 4 Organizing the Project File 3 Select OK The module list for the project appears with the module added The new module will have 8 default loop names Temperature Control Project Molding Machine 1 Project Edit Module Loop Help Module List Loop List Mod Name PLC DT Add No Loop Name tempcon1 2 0 0 0 1 Loop01 Loop02 Loop03 Loop04 Loop05 Loop06 Loop0 Loop08
20. you have entered the appropriate values at the Configuration Configuration Values screen you must download these parameter values To do so 1 From the Loop pull down menu select Download pe Accessing the Download function You may also access the Download function by pressing CTRL D The Download dialog box appears Choose either or both DJ save to the disk file If you choose Then Download to PLC the configuration values are downloaded to the PLC data table block From there the ladder logic block transfers them to the TCM module Save to the disk file the configuration values are downloaded to the disk file from where they can be uploaded as needed 2 Select either or both and click on OK To configure the loop choose download to the PLC At this point the Download dialog box is removed from the Configuration screen and the module configuration is complete Publication 1771 6 4 5 January 1997 Configuring the Loops 5 11 Uploading Configuration In the case that you are reconfiguring a loop or group of loops you Values may find it useful to first upload the old configuration values for that module Also after downloading you ll want to verify that the PLC processor received the correct information To do so at the Loop pull down menu select Upload E 1 From the Loop pull down menu select Upload p Accessing the Upload function You may also access the Upload function by pressing CTRL
21. you perform an upload or download you are transferring information for a single loop only Some screens allow you to upload or download information for all eight loops in a module at the same time This is useful for example to download an entire module from the PLC processor and save it to a file without having to perform eight separate uploads and downloads However since the command can alter data you may not intend to alter you are prompted for confirmation when you attempt to download an entire module at once Screens that are intended to monitor the module as it operates such as the Loop Monitor screen or the Module Monitor screen only display information from the PLC processor If the connection to the processor is not available when you attempt to open a monitor screen you will receive an error message and the screen will close To configure a module access the module configuration screen 1 At the Module Manager screen select the module 2 From the Module menu select Configure Accessing the Module menu Clicking on the right mouse button while the pointer is over the module list on the Module Manager screen will display a popup version of the Module menu Clicking on the right mouse button brings up context sensitive menus throughout the software Configuring the Modules 4 3 The Module Configuration screen for the module you selected appears Module Configuration tempcon1 Module Help CJ Alarm Enable
22. 0 ccc cc cee eee eens Configuring Tuning Parameters 000 cc cece eaee Auto Tuning the Loops llle Auto Tuning Procedure 00 00 00 c cece eee eee Monitoring Auto Tuning Results 00eeeeeeee Downloading Tuning Results 000 c cece eeees Fine Tuning the Loops cece cece eee eee eees Fine Tuning Procedure 0 00 e cece eee rne Changing the System Response Setting After Tuning is Complete What to do next oie ciewnideaceSa den dlevewsce ede odes Table of Contents Monitoring and Controlling the Loops Loop Monitor Screen 220 crues ora E xd ex ERE e d Changing Loop Settings Entering Loop Settings ipo eT To Download P CET Module Monitor Screen Documenting Projects Modules and Loops MOONS 2S DpI p m Printing or Viewing an Entire Project Printing a Single Module or Loop Who Should Use this Manual Conventions Used in this Manual Preface Using this Manual This manual describes the use of Temperature Control configuration software for use with the Temperature Control module 1771 TCM series C For information on how to install the module or how to generate the necessary ladder logic programming for operating the module with this configuration software see publication 1771 6 5 120 This ladder logic is provided with your Temperature Control configuration software as well Use this manual if you are responsible f
23. 7 3 2 Organizing the Project File Publication 1771 6 4 5 January 1997 If you previously created and saved any project files the diretories where they were saved will be listed in the Previous Directories page Click on a directory to display the project files in that directory Click on a file to display its description or double click on a file to open the Module Manager screen for that project From the File pull down menu select New The New Project dialog box appears Type the project file name and then select OK Use a short name that describes the project for example Molding Machine 1 Spaces are not allowed However underscores are allowed The Module Manager screen for the project appears Temperature Control Project Molding Machine 1 Project Edit Module Loop Help Module List Loop List Mod Name PLC DTAdd R G s No Loop Name Organizing the Project File 3 3 Adding Modules to the To add a module to the project file Project File 1 From the Module pull down menu select New The New Module dialog box appears fe New Module Name tempcon1 PLC Node Port DT Address Rack No Group No Slot No 2 In this dialog box enter the following for the module In this field Select on enter Name A short descriptive name to help you identify the module PLC Node The node number on the DH link of the PLC processor for
24. 7 4 4 Configuring the Modules Downloading Configuration Values Publication 1771 6 4 5 January 1997 Once you have made your desired selections on the Module Configuration screen you must download these parameter values To do so 1 From the Module menu select Download Accessing the Download function You may also access the Download function by pressing CTRL D The Download dialog box appears Choose either or both DJ save to the disk file If you choose Then Download to PLC the configuration values are downloaded to the PLC data table block From there the ladder logic block transfers them to the TCM module Save to the disk file the configuration values are downloaded to the disk file from where they can be uploaded as needed 2 Select either or both and click on OK The values are then downloaded the dialog box closes and the right hand section of the status bar at the bottom of the window is updated to show the values were downloaded Some screens have both Loop and Module menus On these screens when you select upload or download from the Loop menu the only data transferred is that for the loop on which the screen was opened When you select upload or download from the Module menu the data for all eight loops of the module are transferred This is useful for example to upload an entire module from the PLC processor and then save it to the disk file without having to go to eight se
25. C Display Mode Disabled Normal Enabled Integer Module Firmware Revision Values updated from PLC Select your desired temperature units Celsius or Fahrenheit All temperature values will be displayed in the selected units and you should enter all temperature values in these units Enable or disable the cold junction alarms When cold junction alarms are enabled the cold junction alarm bit in the data table will be set any time the cold junction temperature exceeds seventy degrees Celsius or falls below zero degrees Celsius Select the desired C Display Mode Normal or Integer When you select Integer the module will set the least significant digit tenths of degrees of the C Temperature output to 0 You can view the temperature on the Loop Monitor and Module Monitor screens For example If the Actual value is Then the Normal value is Or the Integer value is 123 6 123 6 123 0 256 1 256 1 256 0 127 8 127 8 127 0 This setting applies to all the loops in the module Note This feature is only supported in Module Firmware Version 3 3 and later The Module Configuration screen displays the revision number of the module s firmware This lets you determine the revision level of your module without removing the module from service Note The module firmware revision will only be valid when data has been uploaded from the PLC processor Publication 1771 6 4 5 January 199
26. RCHANGE software If you select No at that Note This is the recommended choice prompt you must manually start INTERCHANGE software ethe system makes a backup copy of your AUTOEXEC BAT file and modifies the original Make a backup copy of AUTOEXEC BAT and make changes to the copy ethe system asks if you want to modify your AUTOEXEC BAT file so that it automatically loads INTERCHANGE software If you select No at that prompt you must manually start INTERCHANGE software ethe system will modify a copy of your AUTOEXEC BAT file You must then examine the copy and make the appropriate changes to your actual AUTOEXEC BAT file The software will not operate properly until you edit your actual AUTOEXEC BAT file Do not make any changes to AUTOEXEC BAT no changes will be made to your AUTOEXEC BAT file The software will not operate properly until you edit the AUTOEXEC BAT file Detailed instructions on editing this file are in the INTERCHANGE software user manual publication 5000 6 6 6 If you select in either of these three cases to not make any changes to the AUTOEXEC BAT file you must first start INTERCHANGE software before you start Windows You are prompted to decide whEther you want the AUTOEXEC BAT file modified so that it will automatically load when you start your computer You are also reminded to reboot your system to make the changes take effect The system then prompts you with this dial
27. Salvador e Finland e France e Germany e Greece e Guatemala e Honduras Hong Kong Hungary e Iceland e India e Indonesia e Ireland e Israel e Italy e Jamaica e Japan e Jordan Korea e Kuwait e Lebanon e Malaysia e Mexico e Netherlands e New Zealand e Norway e Pakistan e Peru e Philippines e Poland e Portugal e Puerto Rico e Qatar e Romania e Russia CIS e Saudi Arabia e Singapore e Slovakia e Slovenia e South Africa Republic e Spain e Sweden e Switzerland e Taiwan e Thailand e Turkey United Arab Emirates e United Kingdom e United States e Uruguay Venezuela e Yugoslavia Allen Bradley Headquarters 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Publication 1771 6 4 5 January 1997 PN 955124 21 Copyright 1997 Allen Bradley Company Inc Printed in USA
28. This process can take from a few minutes to several hours depending on the response time of your process Before you begin the auto tuning process we recommend that you perform several preparatory steps 1 After configuring your module and loops as described in Chapters 4 and 5 operate your loops in Manual mode By operating the loop in Manual mode you can verify that the inputs and outputs are connected properly the temperature sensors are correctly measuring your process temperature and the loop output properly controls heating and or cooling Publication 1771 6 4 5 January 1997 6 2 Tuning the Loops Tuning Parameters Publication 1771 6 4 5 January 1997 2 Once you are satisfied that your loop is operating properly in Manual mode use the Manual Tuning screen to set the proportional gain to 1 leaving the integral and derivative gains at 0 This configures the loop for straight proportional control 3 Place the loop in Automatic mode With a proportional gain of 1 the loop output should be directly proportional to the deviation between the measured variable and the setpoint 4 When you are satisfied the loop is operating properly in this mode you can proceed with the auto tuning process described in the following sections Important You must allow the equipment to cool down before you begin the autotune process or your results will be invalid There are several tuning parameters that you can configure to
29. ally to view all columns The slope time constant and dead time values are the measured process dynamics that the module uses together with the system response slow medium or fast you enter at the Loop Configuration screen to calculate the PID gains controller gain integral gain and derivative gain When you select Download from the Loop or Module menu on the Tuning Results screen you are prompted to select either PID values or system dynamics values If you select PID values the proportional integral and derivative gains for heating and cooling are downloaded System Dynamics values the gain deadtime and time constant values for heating and cooling are downloaded The parameters on this screen are divided into two groups because downloading the System Dynamics values automatically causes the module to recalculate the PID values After auto tuning you may want to fine tune the loops As you fine tune a loop first try adjusting the controller gain this will have the greatest impact Your second choice for adjustment should be the integral gain The derivative gain should be the last choice for fine tuning a loop If the loop has a problem overshooting the set point you may be able to improve the loop response by doing one or more of the following in order of effectiveness 1 decrease the controller gain 2 decrease the integral gain 3 increase the derivative gain If the loop is slow in reaching the s
30. between two other zones The PID gain calculation algorithm for an inner zone is slightly different from that for an outer zone to account for an inner zone being more affected by adjacent zones The inner zones are treated as more of an integrating process than are outer zones Outer Inner Inner Outer Zone Zone Zone Zone Zone 1 Zone 2 Zone 3 dut Hi H2 H3 n Zi FA OIL VTP Ti FA TN L Ram Screw T Tn FATE WA Wir v Ts Ti T2 Ts T temperature measurement point thermocouple H heater band element Ti The loss of thermal integrity is detected when the loop M output is at 100 while the temperature rate of change measured by the module is below the minimum expected rate Detecting the loss of thermal integrity requires an assumption of a minimum rate of change in the temperature input value C when the M output is at 100 An example of a loss of thermal integrity could be because the contactor for a heating band fails open or the sensor is not in proper position to measure the true temperature The values you enter for period and temperature change establish a minimum rate of change min in the temperature input value that you will allow when the M output is at 100 The temperature change value you enter divided by the period value you enter is the thermal integrity rate You select a mode for switching the M out
31. blication SD499 For information on how to install the module or how to generate the necessary ladder logic programming for operating the module with this configuration software refer to the Temperature Control Module User Manual publication 1771 6 5 120 How the Temperature Control Module Configuration Software Interacts with the PLC Processor and the Temperature Control Module Sample Ladder Logic Chapter 1 Interfacing with the Temperature Control Module This chapter describes how to interface the Temperature Control module through the PLC processor to the configuration software This includes how the Temperature Control module configuration software interacts with the PLC processor and the Temperature Control module sample ladder logic utility ladder logic provided using the sample ladder logic program how the Temperature Control module communicates with the PLC processor how the Temperature Control software interfaces with PLC processors e block transfer programming data table interface area communication control bits The Temperature Control module configuration software provides easy to use screens to help you configure tune and operate temperature control modules The configuration software does not communicate or transfer data directly with the module Instead the software reads data from and writes data into an area of the PLC s data table called the data table block If you have mu
32. ch loop as the duty cycle of a bit that is cycled at a regular period Each bit represents one of the 8 PID loops How the Temperature Control Software Interfaces with PLC Processors Interfacing with the Temperature Control Module 1 3 The following graphic illustrates how the individual data blocks are sent to and returned from the TCM module PLC Data Table 1771 TCM Module Output Byte Single Transfer Input Byte Single Transfer Calibration Write Block Block Transfer gp 20 words Calibration Read Block BlockTransfer 14 words Configuration Block for Loop 1 BlockTransfer 26 words Configuration Block for Loop 2 _Block Transfer gp 26 words Configuration Block for Loop 3 _Block Transfer pp 26 words Configuration Block for Loop 4 _Block Transfer gp 26 words Configuration Block for Loop 5 Block Transfer 26 words Configuration Block for Loop 6 Block Transfer gp 26 words Configuration Block for Loop 7 ___Block Transfer 26 words Configuration Block for Loop 8 _Block Transfer gp 26 words Auto Tune Block Block Transfer amp 57 words Gains Block Block Transfer lt lt gt 57 words Dynamic Block Block Transfer MN a Ln 34 words System Status Block q PlockTranster 64 words The computer with the Temperature Control software communicates with the PLC processor across a local DH l
33. dule See Chapter 4 for more information The example ladder logic in Appendix C of the Temperature Control Module User Manual publication 1771 6 5 120 uses N7 0 as the starting address for this interface area To keep things simple we recommend using word 0 of a file as the starting address However as long as you provide the indicated word offsets the interface area can start with any word in an integer file If you install multiple Temperature Control modules in your PLC system you will need to assign a separate integer file for each of them so that only one uses file N7 You will have to make the corresponding address changes for each additional module Note that no areas are designated for calibration read or write blocks Calibration is an off line function that the Temperature Control software does not handle For details on how the example ladder logic program uses words 1 through 5 and 9 refer to appendix C of the Temperature Control Module User Manual publication 1771 6 5 120 Your ladder logic program does not have to use words 1 through 9 in the same way as in the example ladder logic program However you must use words 0 and 10 through 614 exactly as indicated Publication 1771 6 4 5 January 1997 1 6 Interfacing with the Temperature Control Module Communication Control Bits Word N7 0 Do not control these 2 bits with your ladder logic outside of this example program Initiate a block transfer with one o
34. e minimum time in seconds for which the cool bit is turned on during the TPO period If the calculated time is less than this minimum the cool bit will not be turned on This on time must be less than the cool TPO period High Temp Alarm 3276 8 thru 3276 7 A temperature value at the high end of the sensor limit but still below the maximum temperature value Low Temp Alarm 3276 8 thru 3276 7 A temperature value at the low end of the sensor limit but still above the minimum temperature value High Deviation Alarm 3276 8 thru 3276 7 A value that specifies the greatest deviation above the set point that the process can tolerate Low Deviation Alarm 3276 8 thru 3276 7 A value that specifies the greatest deviation below the set point that the process can tolerate Dead Band for Alarms 0 0 thru 10 0 Once the temperature alarm bits are on they are kept on until the temperature drops below the high alarm point by this value rises above the low alarm point by this value The dead band value applies to all alarms C Alarm Rate 3276 8 thru 3276 7 s If the rate of temperature C increase is greater than this value the C rate alarm is triggered A value of 0 0 disables the C rate alarm Temperature Sensor Type mV B E J K R S T Temperature Sensor Filter When enabled the C input is passed through a first order step equivalent lag filter The filter s time constan
35. een appears When the software is loaded you see the Temperature Control Project screen TempCon Me File View Tools Help Previous Directories i e appdirs tempcon Project Description name Project 1 description Descriptive information for Project 1 Publication 1771 6 4 5 January 1997 2 10 Installing the Software Using Online Help What to do next Publication 1771 6 4 5 January 1997 To access the TemperatureControl software online help from the Help pull down menu you can select Contents You see the TemperatureControl online help Contents screen Click on any of the underlined text to view the help on that topic You can also press F1 from any screen to view help for that screen To learn how to use the online help screens from the Help pull down menu select How to Use Help The How to Use Help screen appears How to Use Help File Edit Bookmark Help Contents for How to Use Help Help window To choose a Help topic Or press TAB to select the topic and then press ENTER Introduction Help Basics How To Annotate a Help Topic Choose a Jump Help Topic onto the Cli n Define and Use Bookmarks Get Help from Your Application Keep Help on Top of Other Windows Move Around in Help Open Another Help File Print a Help Topic Scroll Through a Help Topic To learn how to organize the Temperature Control project file read Chapter 3 Chapter 3 Organizing the P
36. en select the module for which you want to generate the loop list As you select a module on the Project screen the loop list for that specific module is displayed Select a loop From the Loop pull down menu select Name The Loop Name dialog box appears Modify Loop Name Name Loopo1 Enter a symbolic name for the loop Select OK You see the loop list for the module Publication 1771 6 4 5 January 1997 5 2 Configuring the Loops 6 Repeat from step 2 until you have made all desired changes to the loop list Temperature Control Project Molding Machine 1 Project Edit Module Loop Help Module List Loop List Mod Name PLC DT Add No Loop Name 2 0 0 1 LoopZ1 LoopZ2 LoopZ3 LoopN Loop05 Loop06 Loop07 Loop08 Configuration Selections On the Configuration screen you are given several configuration selections to establish However your selections do not control the PLC data table values in real time These selections do not take effect until you download the selections to the PLC data table interface area Open Circuit Detection If a loop input circuit becomes open a wire breaks or vibrates loose the loop can not measure the temperature In automatic mode the lack of temperature feedback would make it impossible to control the temperature To guard against such a lack of temperature control the module provides open circuit detection You select a mode to which the loop
37. escription 00 cece eee eee eee eee Copying Configuration Values From One Module to Another Copying Configuration Values From One Module Into a New Module Moving a Module From One Project to Another hcec M Configuring the Loops eeseeeeeeeees Changing Default Loop Names suus Configuration Selections 000 e cece cence Open Circuit Detection 0 cece eee eee eee Barrel Non Barrel Control 0 cece eee e neces Switch to Barrel Control 2 0 eee eee eee InierDuter Zone n nuunuu oe dd bee uc 9 RARE E XR eee Thermal Integrity Loss Detection 0000e eee UI ART Alarm Dead Band 0 0 000 cece cece eee rere IPO Bi iei bide bep Ado REX DAR Ss oe EUH en ees Accessing the Loop Configuration Screen Lun Entering Loop Configuration Values nonna anaana Downloading Configuration Values lisse Uploading Configuration Values 00 cece ee eens Using One Loop to Configure Another 0005 Loop Description 0 0 cc ccc eee eens What todo DIBXE 1usus oo5 enact ghee qp cb RRIN PERDE REN TUNING the Loops sean zuses cc mra ma i om Introduction to Loop Tuning lessen The Auto Tuning Process nnana nnana nnana nanana Preparing to Auto Tune Loops 0eceeeeeeeaes Tuning Parameters 00 0
38. et point you may be able to improve the loop response by doing one or more of the following in order of effectiveness 1 increase the controller gain 2 increase the integral gain 3 decrease the derivative gain Tuning the Loops 6 7 Fine Tuning Procedure To fine tune a loop 1 At the Module Manager screen select the module and loop you want to fine tune 2 At the Loop menu select Manual Tune The Manual Tuning screen appears Manual Loop Tuning Molding Machine_1 LoopZ1 4 Loop Module Help z Gy Current c E 4 gt Heating Proportional Gain 47 e 4 gt Heating Integral Gain 0 11 Heating Derivative Gain 2 0 w a e e E ke ale fale Cooling Proportional Gain 3 6 Cooling Integral Gain 0 07 w 2 N e ae se se ise wie Cooling Derivative Gain 3 0 In this field Enter this value Heat Controller Gain 0 thru 32 767 Heat Integral Gain 0 thru 3 2767 repeats s Heat Derivative Gain 0 thru 3276 7s Cool Controller Gain 0 thru 32 767 Cool Integral Gain 0 thru 3 2767 repeats s Cool Derivative Gain 0 thru 3276 7s 3 Fine tune each gain as necessary 4 Select Download Publication 1771 6 4 5 January 1997 6 8 Tuning the Loops Changing the System Response Setting After Tuning is Complete What to do next Publication 1771 6 4 5 January 1997 You can change the system respo
39. etpoint High Temp 0 0 Deg High Dev oo Deq Stdby Setpoint q Low Temp oo Deg Low Dev oo Deg Man Out Value Deadband joo Deq C Rate loo Deg s SP Ramp Rate Temperature Sensor SP Ramp Enable Disabled EB Type mV Filter Enabled Heat Cool Settings Open Circuit Action Disable Loop M 0 Max M v0 0 Open Circuit M Value Min M 100 0 _ Thermal Integrity Loss Heat Cool i z T TIL Confiquration Disable Loop M 0 TPO Period 5 0 59 jsec TIL Forced M Value Min On s for sec TIL Period Minutes Auto Man System Response TIL Temp Change Degrees Manual Slow Auto O Med Control Type Zone Control Action PM Barrel Inner E SP C Non Barrel Outer E C SP Values updated from PLC Publication 1771 6 4 5 January 1997 5 8 Configuring the Loops Entering Loop Configuration Values Publication 1771 6 4 5 January 1997 Viewing configuration data If you want to view the configuration data for a different loop you can select Next or Previous from the Loop menu to cycle through the loops You can also press CTRL N or CTRL P Enter loop configuration values within the stated ranges In each case where a decimal point is shown if you want to enter a digit to the right of the decimal point you must type in the decimal point the decimal point is not inferred Listing acceptable val
40. f these 12 communication control bits What to do next Publication 1771 6 4 5 January 1997 The configuration software uses word 0 to control the communications between the PLC processor and the module Bits 0 through 11 of word 0 of the data table interface area are communication control bits Based on your input to the Temperature Control software bits 0 through 11 will be used to initiate a corresponding block transfer Your ladder logic program must respond to this input by generating the required block transfer Bits 14 and 15 are used internal to the example program Word Offset 0 Bit Description Loop 1 configuration block write to TCM required Loop 2 configuration block write to TCM required Loop 3 configuration block write to TCM required Loop 4 configuration block write to TCM required Loop 5 configuration block write to TCM required Loop 6 configuration block write to TCM required Loop 7 configuration block write to TCM required Loop 8 configuration block write to TCM required Auto tune system ID data block write to TCM required Auto tune system ID data block read from TCM required Gains block write to TCM required Gains block read from TCM required not used not used Used by the example ladder logic as A manual download requested but no block transfer in progress Used by the example ladder logic as Block transfer to from TCM in
41. hange Settings Loop Output jo Auto Manual Setpoint o Run Standby CJ Temp n0 Setpoint Ramp AJT Status Deviation Module Status LoopzZ1 All alarms are suppressed empcon 1 Cold junction alarms are suppressed LoopZ1 Power has been interrupted since valid parameters have been block transferr The values on this screen are refreshed about once per second If the set point ramp field Indicates Then No Ramp set point ramping is disabled OR set point ramping is enabled but the set point is currently not ramping Up set point is increasing due to set point ramping Down set point is decreasing due to set point ramping Holding a point would be ramping but the Ramp Hold bit is Note With Module Firmware versions prior to 3 3 this field will display No Ramp when the set point is not ramping and Down when the set point is ramping regardless of whether it is ramping up or down Publication 1771 6 4 5 January 1997 7 2 Monitoring and Controlling the Loops Publication 1771 6 4 5 January 1997 The module status pane is used to display error messages If the number of current error messages exceeds the number of lines that can be displayed you can scroll thru the messages The possible error messages include the following high temperature alarm low temperature alarm high deviation alarm low deviation alarm high manipulated variable M alar
42. hese instructions are described in a Readme file If this file is present a prompt appears Allen Bradley Software Would you like to view the important information in the Readme file We recommend that you select Yes If you do the installation resumes after you have viewed the Readme file You can also view the file later by selecting its icon from the Allen Bradley program group If you do choose No the installation continues immediately You are prompted to enter disk 2 Publication 1771 6 4 5 January 1997 2 4 Installing the Software 6 Insert disk 2 of the Configuration Software into drive a and click on OK The Choose Destination Location screen appears Choose Destination Location 7 Either enter a new destination where you would like the TCM software to be installed or click on the Next button to accept the default directory If the directory does not already exist you are prompted to decide whether you want to create it Choose Yes if you want the system to create the directory The software installation continues and the percentage graph displays installation status You are prompted to enter disk 3 8 Insert disk 3 into drive a and click on OK The installation continues You are prompted to decide whether you want to install the ladder logic utility programs If you choose Yes the Select Components screen appears Select Components Publication 1771 6 4 5 January 1997 Ins
43. ink or a DFI serial link Important For configuring temperature control loops you can not have the computer on one DH link and have the PLC processor on another remote DH link even if they are in the same DH network As shown in the following graphic after entering configuration selections at the computer you can download them to disk files and or the PLC processor s data table interface area for use by the module Later you can upload configuration selections from either the disk files or the PLC processor s data table interface area for making changes Publication 1771 6 4 5 January 1997 1 4 Interfacing with the Temperature Control Module Computer with PLC Data Table Temperature Control Software Upi RAM UE O Down Upload Data Table Interface Area c Download Disk Files For information on block transfer programming refer to your Temperature Control Module User Manual publication 1771 6 5 120 Data Table Interface Area To use the Temperature Control configuration software the read and write blocks along with a control word must be organized into a 614 word data table interface area in an integer file with the word offsets shown below The utility ladder logic provides this Word Offset Description 0 Communication control word initiates block transfer of configuration auto tune or gains values when you set a specific bit 1
44. ion _3 1 module list generation procedure _3 1 module status 7 2 monitoring and controlling loops _ 7 1 monitoring auto tuning results _ 6 5 0 online help 2 2 2 10 open circuit detection 5 2 outer inner zone 5 4 P PID loops 1 2 procedure loop list generation 5 1 procedure module list generation 3 1 R related publications P 2 requirements for your computer _ 2 1 S selections configuration 5 2 Index set point ramping 7 1 single transfer 1 2 software disks 2 2 software installation procedure 2 2 software interface with PLC processors 1 3 software starting 2 9 starting the software 2 9 T TC break detection 5 2 terms P 2 thermal integrity loss detection 5 4 thermal runaway 5 4 TPO P 2 5 6 tuning _6 1 auto 6 4 fine 6 6 tuning assistant 6 4 V vocabulary P 2 W project file 3 1 temperature control project file 3 1 Customer Support If you need additional assistance on using your software Allen Bradley offers telephone and on site product support at Customer Support Centers worldwide For technical assistance on the telephone first contact your local sales office distributor or system integrator If additional assistance is needed then contact your local Customer Support Center or contact System Support Services For assistance that requires on site support contact your local sales office distributor or system
45. ion Software as configuration software or software e the programmable controller processor as the PLC processor or the processor athermocouple as a TC atime proportioned output as a TPO e atemperature control PID loop as a temperature control loop a PID loop or a loop In addition some terminology has been adjusted to conform to ISA IEEBE standard definitions The table below shows the commonly used Allen Bradley terms that you may already be accustomed to the corresponding ISA IEEE terms and the definitions for these words Existing A B Term ISA IEEE Term Definition Control Variable V or CV or Manipulated Variable M A quantity or condition which the controller applies to the controlled system Controller Output CO Process Variable PV Controlled Variable C In a control loop the quantity or condition of the controlled system which is directly measured and controlled Process Variable PV Any variable of the process including the manipulated variable and the controlled variable Proportional Gain Kp Controller Gain Ko The overall gain for the loop with dependent PID control action this affects the integral and derivative terms as well as the proportional term Related Publications Publication 1771 6 4 5 January 1997 For a list of publications with information on Allen Bradley programmable controller products consult our Publication Index pu
46. ltiple modules each must have a separate data table block The utility ladder logic running on the PLC processor then transfers this data to or from the module using block transfer instructions You can select the area of the data table to be used by the software but the arrangement of the data within the data table block is fixed by this software Utility ladder logic is provided with the configuration software We recommend that you use this utility ladder logic since it contains all the necessary block transfers and control instructions needed to use the configuration software with the Temperature Control module and has been tested to operate correctly with both the module and the software Publication 1771 6 4 5 January 1997 1 2 Interfacing with the Temperature Control Module Using the Sample Ladder Logic Program How the Temperature Control Module Communicates with PLC Processors Publication 1771 6 4 5 January 1997 The sample ladder logic can be combined with the other logic you need for your application If you prefer to write your own ladder logic it must duplicate the arrangement of data within the block and the operation of the control bits that the sample logic uses in order for the configuration software to operate correctly During installation of the configuration software you will have the option of copying the sample ladder logic to your computer From there you can restore the program to your processor u
47. m low M alarm input over range input under range TC break alarm loss of thermal integrity calibration fault CJ under range CJ over range Auto tuning terminated because of thermal integrity loss Auto tuning terminated because of thermocouple break Heat auto tuning inhibited because of starting conditions Cool auto tuning inhibited because of starting conditions Set point will be reached before auto tuning is complete Too much noise causing time constant to be 0 Very small gain Set point exceeded before auto tuning completed You may also see a message that says there is an error in a specific word of the configuration block the gains block or the dynamic block In that case refer to the user manual publication 1771 6 5 120 to resolve the problem This kind of problem would most likely be a result of ladder logic errors such as writing over the data table interface area Monitoring and Controlling the Loops 7 3 Changing Loop Settings To change loop settings at the Loop Monitor screen click on Change Settings The Change Settings dialog box appears PEDIS Settings Project_1 Rey Loop Mode M Run Standby 7 Monitor Standby Control Run off l Auto Manual Alarm Enable Manual Disabled 94uo O Enabled SP Ramp Hold 4 Ramp Hold Enabled SP Ramp E Disabled Current New Run SP 150 0 0 0 2 Standby SP Manual Output 0 0 0 S
48. mission of Allen Bradley Company Inc is prohibited Throughout this manual we use notes to make you aware of safety considerations ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attention statements help you to identify a hazard avoid the hazard recognize the consequences Important Identifies information that is critical for successful application and understanding of the product PLC TemperatureControl and DH are trademarks of Allen Bradley Company Inc VGA is a trademark of International Business Machines Corporation MS DOS is a trademark of Microsoft Table of Contents Using this Manual leere P 1 Who Should Use this Manual sese P 1 Conventions Used in this Manual ssese P 1 Terms and Abbreviations 0 0 cee ee eee eee P 2 Related Publications 0c cece eee eee eae p 2 Interfacing with the Temperature Control Module 1 1 How the Temperature Control Module Configuration Software Interacts with the PLC Processor and the Temperature Control Module 1 1 Sample Ladder Logic 0 00 cc cece eee eens 1 1 Using the Sample Ladder Logic Program _1 2 How the Temperature Control Module Communicates with PLC PIODOSSO S 5 313a dac d Ed SX E aci UR n _1 2 How the Temperature Control Software
49. module or loop You can generate reports for an entire project an individual module including its loops or an individual loop Each section of the report includes a header showing the name of the item and its descriptive information and a list of all the parameters that are part of the item with the current value of each parameter also listed You can print reports on a printer attached to your computer using the Print option or you can view them on the screen using the Print Preview option These reports can display either the online i e PLC processor data values or the offline i e File data values To print or view an entire project 1 Open the Module Manager screen on the desired project 2 From the Project menu select Print to produce a printed report or Print Preview to view the report on the screen A dialog box appears prompting you to select File or PLC 3 Select the set of values you wish to document The Print dialog box appears 4 Make sure the All box is checked if you are printing to a printer be sure the printer information is correct and click on OK The report is printed or displayed on the screen Publication 1771 6 4 5 January 1997 8 2 Documenting Projects Modules and Loops Printing a Single Module or Loop Publication 1771 6 4 5 January 1997 To print a single module or loop 1 Open the Module Manager screen on the project containing the module or loop you wish to documen
50. n Chapter 5 of this manual and the tuning configuration described in Chapter 6 That way those settings will be copied to the other modules as well To copy configuration data from one module to another 1 At the Module Manager screen select the first source module 2 From the Edit menu select Copy 3 Select the second destination module The destination module can be in the same project or a different project Copying Configuration Values From One Module Into a New Module Configuring the Modules 4 7 4 From the Edit menu select Paste into selection 5 Go to each configuration screen for the destination module view the pasted data make any required changes and then download to the PLC processor to a file or to both to save the pasted data To save all configuration parameters you must do this from the Module Configuration Loop Configuration Tuning Configuration and Tuning Results screens since each of these screens downloads or uploads only the parameters shown on the particular screen From the Loop Configuration Tuning Configuration and Tuning Results screens you can simultaneously download all eight loops at once by using the Module Download command You can also use one module to configure another new module Note Before you do this you may wish to perform the loop configuration described in Chapter 5 of this manual and the tuning configuration described in Chapter 6 so that those settings a
51. n OK As the system copies the Win32s files it displays a completion percentage graph Once these files are installed you are prompted to enter disk 1 of the INTERCHANGE software Publication 1771 6 4 5 January 1997 2 6 Installing the Software Publication 1771 6 4 5 January 1997 13 Insert disk 1 of the INTERCHANGE software into drive a and click on OK Existing INTERCHANGE software If the current version of INTERCHANGE software already exists on the computer you are asked whether to reinstall the software As the system copies the INTERCHANGE files from disk 1 it displays a completion percentage graph When the system has copied the files from disk 1 you are prompted to insert disk 2 14 Insert disk 3 of the INTERCHANGE software into drive a and click on OK Once the system has copied the remainder of the INTERCHANGE files a prompt appears giving you choices about modifying your AUTOEXEC BAT file Select Components Changes to your AUTOEXEC BAT file are required Select how you want the changes handled C Make a copy of AUTOEXEC BAT and make changes to the copy e i Do not make any changes to AUTOEXEC BAT xy al m TemperalureControl 172 Configurator Installing the Software 2 7 15 In this dialog box If you select Then Modify AUTOEXEC BAT after creating a backup ethe system asks if you want to modify your AUTOEXEC BAT file so that it copy automatically loads INTE
52. n the temperature falls below the user defined low alarm value the low alarm bit is turned on When the temperature rises above the level of the low alarm value but still below the level of the dead band value the low alarm bit remains on Only when the temperature rises above the dead band level will the alarm bit be turned off High Alarm With Dead Band When the temperature rises above the user defined high alarm value the high alarm bit is turned on When the temperature falls below the level of the high alarm value but still above the level of the dead band value the high alarm bit remains on Only when the temperature falls below the dead band level will the alarm bit be turned off without dead band with dead band The temperature passes thru the dead band before the alarm is turned on or off to provide stability to alarm indicators High Alarm Level A gt dead band e Low Alarm Level amp gt dead band 2 S j 8larm off Time gt gt Time gt alarmon TPO Bit The ladder logic can send the TPO signal to a digital output module to generate the control variable output signal to a digital temperature control actuator Y i Duty Cycle x X On Tm X di Y Y TPO Period On TPO Bit Publication 1771 6 4 5 January 1997 You set the period and minimum on time for each loop s heat and cool TPO bits You must set the TPO period to be less than the system lag time i e
53. nce non barrel loops are tuned starting from the setpoint instead of from a low temperature the step size should be chosen to keep the temperature within the operating range For example assume your loop is at the setpoint of 100 degrees and the loop output is at 20 percent when auto tuning is started If the disturbance size is set to 10 percent the output will be changed to 30 percent when tuning starts which will in turn cause the temperature to rise to some value above the setpoint You should make the disturbance size as large as possible while still insuring that the temperature will not rise out of your process s operating range e System Response The system response setting is used in conjunction with the system parameters measured during auto tuning to determine the proportional integral and derivative gains When you select slow the system will react more mildly to changes in setpoint or temperature but will not overshoot the setpoint When you select fast the system will react more strongly to changes in setpoint or temperature but will likely overshoot the setpoint This setting can be changed after a loop is tuned to make small adjustments in the performance of the loop Before you can auto tune a loop you must configure the tuning parameters To do so 1 At the Module Manager screen select a loop 2 From the Loop menu select Configure tuning The Tuning Configuration screen is opened on the selected loop
54. nse setting after auto tuning is complete provided you follow these steps 1 Atthe Tuning Results screen select the loop you wish to alter 2 From the Loop menu select Configure tuning Accessing the tuning configuration values To access the configuration values for this loop you can also double click on the loop The Tuning Configuration screen appears Tuning Configurator Project_1 Loop01 ag Loop Module Help Aggressiveness System Aesponse Slow Disturbance Size Med Fast Integral Term Reset Values updated from PLC 3 Change the system response setting 4 Download to the PLC processor 5 At the Tuning Results screen download the system dynamics values for the loop This triggers the module to recalculate new proportional integral and derivative gains based on the system dynamics and the new system response setting To learn how to monitor and control the loops read chapter 7 Loop Monitor Screen Chapter 7 Monitoring and Controlling the Loops This chapter shows you how to monitor and control the PID loops This includes Loop Monitor screen changing loop settings Module Monitor screen To monitor a loop of a particular module at the Project screen select the module and loop from the Loop menu select Monitor The Loop Monitor screen for the current loop appears Loop Monitor Molding Machine 1 LoopZ1 Loop Module Help Temperature o0 Loop Mode C
55. og box Note If INTERCHANGE is already installed and configured you will not see this dialog box gt Allen Bradley Software You must configure INTERCHANGE with the DeviceConfig utility before you can run INTERCHANGE Would you like to run the utility now Publication 1771 6 4 5 January 1997 2 8 Installing the Software If you select Yes 16 In this dialog box Then the system alerts you that installation will resume after you have completed device configuration Click on OK You see INTERCHANGE Device Configuration Advanced Available Drivers Configured Devices NAME DEVICE PORT STATUS 1784 PCMK on DH485 Add Device Edit Device Remove Device Refer to the Device Configuration Utility User Manual publication 5850 6 5 7 for detailed instructions on using this utility No Publication 1771 6 4 5 January 1997 you see e You may run the utility later by selecting its Icon in the Allen Bradley Program Group Click on OK Installing the Software 2 9 Starting the Software After you ve rebooted your computer follow these steps to start the software 1 In the Allen Bradley program group select the TemperatureControl icon File Options Window Help s Py bpplicationBuilderDeviceConfig INTERView readmekt txt Tem TemperatureControl icon 9 tempcon txt 2 From the File pull down menu select Open As it loads the software a welcome scr
56. oint disturbance you enter Switch to Barrel Control For some applications even though the loops are independent with no thermal conductivity between zones barrel control may provide better performance than non barrel control If a loop has any of these characteristics you may want to try switching it to barrel control e The time constant is greater than 100 0 seconds You can read the time constant for each loop in the auto tune block The loop has a problem overshooting the set point The loop output is saturating the M at 100 for a significant duration If you switch a loop to barrel control for one of these reasons select it to be an outer zone ATTENTION If you switch a loop between non barrel control and barrel control you must auto tune the loop again before operating it If you fail to auto tune the loop after making such a switch the auto tuning values will be wrong for the application and the gains will be greatly distorted Publication 1771 6 4 5 January 1997 5 4 Configuring the Loops Inner Outer Zone Typical plastic injection barrel with multiple temperature zones Thermal Integrity Loss Detection Publication 1771 6 4 5 January 1997 If you make the selection for barrel temperature control you also have a selection for whether it is an inner zone or an outer zone An outer zone is a zone at either end of the barrel An inner zone is any zone other than at the very end of the barrel
57. oops read chapter 6 Publication 1771 6 4 5 January 1997 5 14 Configuring the Loops Notes Publication 1771 6 4 5 January 1997 Introduction to Loop Tuning The Auto Tuning Process Preparing to Auto Tune Loops Chapter 6 Tuning the Loops This chapter shows you how to tune a loop This includes e configuring tuning auto tuning the loops viewing auto tuning results changing system response e fine tuning the loops Before a PID loop can be run in automatic control mode the proportional integral and derivative gains must be set Traditionally these gains have been set manually using a trial and error process This manual process can be very time consuming and often results in less than optimal performance Although you can use the manual process to set the gains the TCM module includes an advanced auto tuning algorithm that is capable of automatically determining near optimum gain values We recommend that you use the auto tuning process to determine initial gain values which can then be adjusted manually if necessary to correct any slight remaining performance problems During auto tuning the TCM module controls the loop output and monitors the change in the measured variable in order to measure several parameters that are characteristic of your process Using these parameters the TCM module then calculates proportional integral and derivative gains that will provide good automatic control
58. or installing the Temperature Control software or using it to configure tune or operate the temperature control loops You must be able to program and operate an Allen Bradley programmable controller to make efficient use of your Temperature Control module In particular you must know how to program block transfer instructions If you do not refer to the appropriate PLC programming manual before you attempt to generate a program for this module The following conventions are used throughout this manual User prompts are shown in fixed pitch type CUN e Text that you enter literally is shown in bold fixed pitch type a setup e A literal key stroke that can not be represented by a single character is shown in bold type inside a box win emer f tems displayed only on the screen are shown in plain type In the Name field enter e tems on the screen that we tell you to select are shown in plain bold type From the Module menu select Download We also use this convention to call attention to helpful information Publication 1771 6 4 5 January 1997 P 2 Using this Manual Terms and Abbreviations For a complete listing of Allen Bradley terminology refer to the Allen Bradley Industrial Automation Glossary publication AG 7 1 In this manual we refer to e the Temperature Control module as the 1771 TCM module the TCM module or as the module the Temperature Control Module Configurat
59. parate screens and perform eight separate uploads and downloads Because this command if used improperly can alter data you did not intend to alter you are prompted for confirmation when you attempt to perform a module download Uploading Configuration Values Configuring the Modules 4 5 Although an automatic upload is performed when a screen first opens you may also perform a manual upload at any time This is useful for example when you want to transfer data stored in the disk file to the PLC processor by first uploading from the file and then downloading to the processor To upload configuration values 1 From the Module menu select Upload Accessing the Upload function You may also access the Upload function by pressing CTRL U The Upload dialog box appears Upload Choose either upload from the PLC Q restore from the disk file 2 Select your desired upload source and click on OK The values are then uploaded the dialog box closes and the left hand section of the status bar at the bottom of the window is updated to show the values were uploaded Some screens have both Loop and Module menus On these screens when you select upload or download from the Loop menu the only data transferred is that for the loop on which the screen was opened When you select upload or download from the Module menu the data for all eight loops of the module are transferred This is useful for example to upload an
60. ppears showing all 8 loops of the module Tuning Assistant tempcon1 Tuning Module Help Name Temp C SP Output M Barrel Non Tun Status 1 Loop001 282 3 290 0 11 52 Barrel Successful 2 Loop002 289 9 290 0 0 0 Barrel Successful 3 Loop003 291 0 290 0 0 0 Barrel Successful 4 Loop004 280 9 290 0 11 54 Barrel Successful 5 Loop005 2192 0 0 0 Barrel Not Successful 6 Loop006 2192 0 0 0 E Barrel Not Successful 7 Loop007 2192 0 0 0 Barrel Not Successful 8 Loop008 2192 0 0 0 Barrel Not Successful EEEE Module Status tempcon1 Cold junction alarms are suppressed L oop001 All alarms are suppressed Loop001 Parameter value error Loop001 Heat auto tuning is inhibited because of the starting conditions L oop002 All alarms are suppressed Loop002 Parameter value error L oop002 Heat auto tuning is inhibited because of the starting conditions L o0p003 All alarms are suppressed All None Barrel 3 Select the loops you want to tune For barrel zones on the same barrel select either all heat only loops or all heat cool loops Auto tuning heat only loops at the same time with heat cool loops may generate inappropriate gains Clicking on a loop will toggle between selecting and deselecting the loop e Selecting All selects all loops Selecting None deselects all loops e Selecting Barrel selects all loops designated as barrel loops Monitoring Auto Tuning Results Tuning the Loop
61. put to a forced value when the rate of change of the temperature does not reach the minimum for thermal integrity The selections are disable the PID loop by forcing the M value to zero set the output to the thermal runaway forced M value e set the output to the manual mode M value by setting the loop into manual mode If a thermal integrity loss is detected you must disable the affected loop and then re enable it to clear the condition You can do this from the Change Settings screen Configuring the Loops 5 5 Alarms In the Loop Configuration screen you select values for the following temperature level alarms low temperature alarm high temperature alarm low deviation alarm deviation from the set point high deviation alarm deviation from the set point High Deviation Alarm Value Set Point Low Deviation A Alarm Value o a S 2 E E Low Temperature High Temperature Alarm Value Alarm Value Time gt gt Publication 1771 6 4 5 January 1997 5 6 Configuring the Loops Alarm Dead Band Once the temperature alarm bits are on they are kept on until the temperature drops below the high alarm by the alarm dead band value or rise above the low alarm by this value You specify the temperature alarm dead band This dead band provides a hysteresis effect The dead band value applies to the high and low temperature and deviation alarm values Low Alarm With Dead Band Whe
62. re copied to the new module as well 1 At the Module Manager screen select the first source module 2 From the Edit menu select Copy 3 From the Edit menu select Paste into new The New Module dialog box appears 4 Fill in the information in the dialog box and click on OK The new module will be added to the module list 5 Go to each configuration screen for the destination module view the pasted data make any required changes and then download to the PLC processor to a file or to both to save the pasted data To save all configuration parameters you must do this from the Module Configuration Loop Configuration Tuning Configuration and Tuning Results screens since each of these screens downloads or uploads only the parameters shown on the particular screen From the Loop Configuration Tuning Configuration and Tuning Results screens you can simultaneously download all eight loops at once by using the Module Download command Publication 1771 6 4 5 January 1997 4 8 Configuring the Modules Moving a Module From One Project to Another What to do next Publication 1771 6 4 5 January 1997 To move a module from one project to another 1 At the Module Manager screen select the module you wish to move From the Edit menu select Cut Close the Module Manager screen From the Project Manager screen open the destination project or create a new project From the Edit menu select Pa
63. roject File This chapter shows you how to organize a temperature control project file This includes e a definition of the temperature control project file creating a project file adding modules to the project file e modifying an existing module The Tem perature Control Before you can configure a temperature control module you must Project File create a project file that includes the module and its loops Each project file can hold information for one or more temperature control modules Use a single project file for all modules used on a common project controlled by a PLC processor or multiple PLC processors on the DH link For example if a molding machine uses 5 TCM modules use a single project file for all 5 modules For each temperature control module you add to the project file you must establish e asymbolic name for the module e the address on the DH link of the PLC processor for the module the starting address of the contiguous data table area for interfacing with the module See chapter 1 for details of how this interface area must be arranged the module location address rack group slot Creating a Project File To create a project file 1 Start the software as described in chapter 2 to show the temperature control modules directories File View Tools Access Help Previous Directories Project Description Publication 1771 6 4 5 January 199
64. s 6 5 4 Select Start Tuning Once the tuning process starts the Start Tuning selection becomes Stop Tuning 5 If at any time during the process you want to stop the auto tuning select Stop Tuning During auto tuning do not close the Tuning Assistant screen as this will prevent proper completion of tuning You may minimize the window if desired As the tuning process progresses the tuning status for each loop is reported as one of the following e Unknown e n Process e Successful e Not Successful When none of the loops are any longer reported as In Process the auto tuning is complete After auto tuning is complete you can monitor the the auto tuning results passed between the the TCM module and the PLC data table To monitor the auto tuning results from the Module menu select Tuning Results i The Auto Tuning Result screen appears Tuning Results tempcon1 Module Loop Help 1 2 3 4 5 6 7 8 Values updated from disk file On this screen for both heat and cool for each loop the following values are displayed controller gain integral gain derivative gain slope process gain for non barrel loops time constant dead time Publication 1771 6 4 5 January 1997 6 6 Tuning the Loops Downloading Tuning Results Fine Tuning the Loops SetPoint No o Set Point Roster oo Publication 1771 6 4 5 January 1997 You must scroll horizont
65. sing your PLC programming software You then edit the subroutine in the sample ladder logic so that the block transfer instructions address the correct rack group and slot for your module You also edit the subroutine to use your desired data table block address If you have multiple modules you make a copy of the subroutine for each module and then edit the copies as described above Refer to Appendix C of the Temperature Control Module User Manual publication 1771 6 5 120 for detailed instructions on editing the sample ladder logic The Temperature Control module communicates with the PLC processor by both block transfer and single transfer The ladder logic must include block transfer write instructions to send the following data blocks to the module aconfiguration block for each PID loop 8 max gains block e auto tune block e dynamic block calibration block not required for normal operation The ladder logic must include block transfer read instructions to get the following data blocks from the module system status gains block e auto tune block e calibration block not required for normal operation Unless the 1771 TCM module is located in a remote I O chassis you can provide high speed processing of time proportioned output TPO signals by including instructions in the ladder logic for dealing with an input image byte single transferred from the module This byte contains the control variable output of ea
66. ste into new The New Module dialog box appears Fill in the information in the dialog box and click on OK The new module will be added to the module list Go to each configuration screen for the destination module view the pasted data make any required changes and then download to the PLC processor to a file or to both to save the pasted data To save all configuration parameters you must do this from the Module Configuration Loop Configuration Tuning Configuration and Tuning Results screens since each of these screens downloads or uploads only the parameters shown on the particular screen From the Loop Configuration Tuning Configuration and Tuning Results screens you can simultaneously download all eight loops at once by using the Module Download command To learn how to configure the loops of the temperature control module read chapter 5 Changing Default Loop Names Chapter 5 Configuring the Loops This chapter shows you how to configure the PID loops of the 1771 TCM module This includes changing default loop names configuration selections thermocouple break detection thermal integrity detection alarm dead band fine tuning the loops bringing up the Loop Configuration screen entering configuration values downloading configuration values uploading configuration values using one loop to configure another To change default loop names 1 2 3 4 5 At the Module List scre
67. t Select the module or loop you wish to document From the Project menu select Print to produce a printed report or Print Preview to view the report on the screen A dialog box appears prompting you to select File or PLC Select the set of values you wish to document The Print dialog box appears Make sure the Selection box is checked if you are printing to a printer be sure the printer information is correct and click on OK The report is printed or displayed on the screen A alarm dead band 5 6 hysteresis 5 audience P 1 auto tuning _6 4 barrel non barrel _5 3 block transfer 1 2 C changing loop settings _7 3 communication how data is transferred 1 2 computer requirements 2 1 configuration selections _5 2 configuring the loops _5 1 configuring the module 5 1 organizing the project file 3 1 Alarms _5 5 controlling and monitoring loops _ 7 1 D dead band definitions disks _2 2 drive convention _2 2 5 6 P 2 E error messages 7 2 F fine tuning 6 6 H help 2 2 2 10 hysteresis 5 6 Index inner outer zone 5 4 installation software _ 2 1 installation procedure software _ 2 2 installing the utility software 2 1 installing Win32s files _2 3 L loop configuration _5 1 loop list generation procedure _5 1 loop monitor sreen 7 1 module monitor sreen _ 7 4 module configuration _5 1 project list organizat
68. t is determined by the value entered in the TC field Note This feature is only supported in Module Firmware Version 3 3 and later Temperature Sensor TC This is the filter time constant for the C input filter and can range from 0 0 to 9 9 seconds A setting of 0 0 effectively disables the filter Note This feature is only supported in Module Firmware Version 3 3 and later Disable Loop M 0 Open Circuit Action e M On Break M value The forced M value on TC break M Manual Output value Open Circuit M Value 100 00 thru 100 00 The percentage value to force into the M output when a broken TC is detected Disable Loop M 0 TIL Configuration M On TILM The forced M value on thermal integrity loss M Manual Output value TIL Forced M Value 100 00 thru 100 00 The percentage value to force into the M output when thermal integrity loss is detected TIL Period 0 thru 100 minutes TIL Temp Change 0 thru 100 Auto Manual Auto or Manual Desired System Response Slow Medium Fast or Very Fast The system response desired as a result of auto tuning This selection will be used together with system parameter measured during auto tuning to generate the auto tuning gains Control Type Barrel or Non Barrel Zone Inner or Outer Control Action E SP C or E C SP Publication 1771 6 4 5 January 1997 5 10 Configuring the Loops Downloading Once
69. talling the Software 2 5 9 Click on the Next button The Choose Destination Location screen appears Choose Destination Location The ladder logic files will be installed in the location shown below Please accept or edit the default path A TemperalureControl 1771 Configurator 10 Either enter a new destination where you would like the ladder logic files to be installed or click on the Next button to accept the default directory If the directory does not already exist you are prompted to decide whether you want to create it Choose Yes if you want the system to create the directory The system then installs the files If you are using Windows 3 1 or 3 11 you are prompted to enter disk 1 of the WIN32s files If you are using Windows 95 proceed with step 13 11 Insert disk 1 of the WIN32s files into drive a and click on OK The installation continues Installing the Win32s files If Win32s files already exist the system compares the version number of the existing copy to that of the new copy e If the existing copy is older the prompt will indicate that the software may not work properly with the old version and ask whether to overwrite or leave the existing copy e If the existing copy is the same or newer you will still be prompted to either overwrite or leave the existing copy You are prompted to enter disk 2 of the WIN32s files 12 Insert disk 2 of the WIN32s files into drive a and click o
70. testing changes you may want to download only to the PLC processor so that the file retains your un altered settings Once you are satisfied with those changes you can download to the file to save them Publication 1771 6 4 5 January 1997 4 2 Configuring the Modules Accessing the Module Configuration Screen Publication 1771 6 4 5 January 1997 When you first open any of the configuration screens the software attempts to perform an upload from the PLC processor so that the screen displays the current values the module is using If the software cannot upload from the processor e g if the connection to the processor has been broken then the software performs an upload from the file Now the data source the PLC or file is shown in the left hand side of the status bar at the bottom of each configuration screen The right hand side of the status bar displays the destination when you perform a download While the software is uploading data from the PLC processor or file it checks each value to make sure it is within the allowable range of values for the particular parameter If the value is outside the allowable limits it will be reset to a default value for that parameter When this occurs a warning message appears on the screen Under normal conditions this should not occur but it may happen when you are uploading data from a module that has never been configured since the data table will contain random data Normally when
71. ues When you position the mouse pointer over a field that requires a numeric entry e g Run Set point there will be a brief delay after which a small window appears that identifies the acceptable range of values for that parameter You can find additional information in the online help The following table provides you with the appropriate values to enter for each field Configuring the Loops 5 9 In this field Enter this value Run Setpoint 0 0 thru 3276 7 Standby Setpoint 0 0 thru 3276 7 Manual Output Value 100 00 thru 100 00 0 00 thru 99 99 min If enabled the rate at which the current set point is increased or decreased to Pb Hemp He reach the selected set point SP Ramp Enable Toggles between enable and disable Max M Limit 100 00 thru 100 00 The maximum M percentage allowable Min M Limit 100 00 thru 100 00 The minimum M percentage allowable Heat TPO Period 0 thru 100 00s The period in seconds at which the heat bit is cycled and the M is updated Heat Min On Time 0 thru 100 005 The minimum time in seconds for which the heat bit is turned on during the TPO period If the calculated time is less than this minimum the heat bit will not be turned on This on time must be less than the heat TPO period Cool TPO Period 0 thru 100 00s The period in seconds at which the cool bit is cycled and the M is updated Cool Min On Time 0 thru 100 005 Th

1771-6.4.5, Temperature Control Module, Programming Manual

Contents

Download Pdf Manuals

Related Search

Related Contents