adccommunitymod (AutomationDirect) asked a question.
F2--04THM PROGRAMMING HELP
Created Date: October 08,2004
Created By: rcastellanos0523
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HI...IM NEW IN THE PROGRAMMING OF ANALOG SYSTEMS...COULD SOMEBODY SHOW ME A COMPLETE EXAMPLE OF THE PROGRAMMING OF THE F2-04THM ,USING A PID LOOP TO CONTROL A DISCRETE OUTPUT AND VIEW IT IN A EZ TOUCH SO I CA CHANGE THE SET POINT AN TUNE THE LOOP.....THANKS
Created Date: October 08,2004
Created by: rcastellanos0523
HI...IM NEW IN THE PROGRAMMING OF ANALOG SYSTEMS...COULD SOMEBODY SHOW ME A COMPLETE EXAMPLE OF THE PROGRAMMING OF THE F2-04THM ,USING A PID LOOP TO CONTROL A DISCRETE OUTPUT AND VIEW IT IN A EZ TOUCH SO I CA CHANGE THE SET POINT AN TUNE THE LOOP.....THANKS
Created Date: October 11,2004
Created by: rcastellanos0523
Originally posted by rcastellanos0523:
HI...IM NEW IN THE PROGRAMMING OF ANALOG SYSTEMS...COULD SOMEBODY SHOW ME A COMPLETE EXAMPLE OF THE PROGRAMMING OF THE F2-04THM ,USING A PID LOOP TO CONTROL A DISCRETE OUTPUT AND VIEW IT IN A EZ TOUCH SO I CA CHANGE THE SET POINT AN TUNE THE LOOP.....THANKS
CAN SOME BUDY HELP OUT PLEASE.......IS VERY IMPORTANT
Created Date: October 12,2004
Created by: Tech Guy
Each PID system is unique. An example will most likely not help you much since the example might be for temperature when you are doing flow for instance. Your best bet is to look at the resources available to you on the AutomationDirect Technical support website .
Tutorials on PID and EZTouch
Example Programs
Product Manuals
Created Date: October 12,2004
Created by: rcastellanos0523
THATS THE PROBLEM THE EXAMPLES ARE NOT VERY CLEAR...THTAS WHY IM ASKING FOR HELP.....
Created Date: October 15,2004
Created by: hanziou
Have you looked at the sample code in the product manuals? See especially chapt 8 of the user manual. It's about PID Loops. There is a whole section on time proportioning outputs. (I.e. using discrete outs for protional power control.) (It includes simple sample ladder code that works.)
The analog manuals give sample ladder code showing you how to move the F2-04THM data into the memory locations you want.
Use the Setup|Tag Database... in the EZ Editor to define where the EZ Panel will read/write data in the PLC.
The examples I 've seen seem fairly clear to me.
Created Date: October 15,2004
Created by: jackson
I agree with Hanziou. I think the examples pretty clearly show how to simply get the PID running and interfacing it back to the EZ touch panels.
The complexity will come when you start to tune your loop to meet an expected behavior for your application.
Created Date: October 15,2004
Created by: lundell
I like to use the auto transfer function in the PID setup. You do not have to write any code and it is easy to see what v-mem locations are the setpoint, pv, and output then I just use a numerical display or numerical entry on the ez-touch screen.