The CONT_C should be called in a cyclic interrupt block and the cycle time of that block should be input in the CYCLE parameter. An integration time of 500 seconds makes no sense. Why are you using two different scaling functions? Functions are all about not repeating the code...
Thank you for the video. it's helpful. I would appreciate if you can send me the sample program and as I am using cascaded control if you have any recommendation on PID algorithm of cascaded systems. Thank you
+Wondimagegn Bekele Just remember to use OB35 otherwise the cascade for the implementation part there is no difference. Send me an email so I can reply with the program :). And thanks for watching the video.
Thank you for your sharing. I have been searching some information about PID controller on internet. There is something that confuses me. You didnt use OB35 in your example but everyone uses OB35. Can you tell me please what is the difference between using OB35 and not using? Thanks in advance.
+Ali Delikanlı Dear Ali, OB35 is a cyclic interuppt which means that it runs every 100ms for example. When it comes to PID-desing in PLC, we have to call the PID block in OB35 instead of OB1 for two reasons: 1- To run the PID with the same sampling time we read from sensors and send control control signal to actuators. 2- to reduce the burden on the CPU. When we call PID in OB35 when we call it one every 100ms for example not every program which can cause to a longer program cycle. And why I didnot use OB35? Just for presentation purpose but in real life you must use OB35 for above-mentioned reasons!
Very informative and to the point video. Thanks for sharing. I don't understand one thing. why do you use FC2 block and scale 0 to 100 into 0 to 32767? It would be highly appreciated if you would clear this concept for me. thanks in anticipation.
Thank you for the video. I was trying to use that controller, but there were a few things that I didn't understand. This video describes the controller clearly.
Thank you so much. This video is useful for me.
The CONT_C should be called in a cyclic interrupt block and the cycle time of that block should be input in the CYCLE parameter. An integration time of 500 seconds makes no sense. Why are you using two different scaling functions? Functions are all about not repeating the code...
Would you share FC1 and FC2?
I want know how to configure P value and I and d timing
Dear : ISIS Industriell Styrteknik
I would not find any block for scaling which you are using in first network. please help me
Thank you for the video. it's helpful. I would appreciate if you can send me the sample program and as I am using cascaded control if you have any recommendation on PID algorithm of cascaded systems. Thank you
+Wondimagegn Bekele
Just remember to use OB35 otherwise the cascade for the implementation part there is no difference. Send me an email so I can reply with the program :).
And thanks for watching the video.
hi, how do you configure direct action and reserve action at cont_c block?
Why don't you show FC1?
I want project file T^T...
Please have a download link Step 7 Manager I am a student and my graduation subject will be at the top
Thank you for your sharing. I have been searching some information about PID controller on internet. There is something that confuses me. You didnt use OB35 in your example but everyone uses OB35. Can you tell me please what is the difference between using OB35 and not using?
Thanks in advance.
+Ali Delikanlı
Dear Ali,
OB35 is a cyclic interuppt which means that it runs every 100ms for example. When it comes to PID-desing in PLC, we have to call the PID block in OB35 instead of OB1 for two reasons:
1- To run the PID with the same sampling time we read from sensors and send control control signal to actuators.
2- to reduce the burden on the CPU. When we call PID in OB35 when we call it one every 100ms for example not every program which can cause to a longer program cycle.
And why I didnot use OB35? Just for presentation purpose but in real life you must use OB35 for above-mentioned reasons!
Thanks a lot, very helpful video with only the information I actually needed ;) Keep up the good work!!!
Pls guide me to design a tension control system of the web through loadcell of the machine
Very informative and to the point video. Thanks for sharing. I don't understand one thing. why do you use FC2 block and scale 0 to 100 into 0 to 32767? It would be highly appreciated if you would clear this concept for me. thanks in anticipation.
Thank you so much, this is what i was looking for :) you explained it very well.
Thank you very much, this is just what I needed. Very clearly explained.
I want to open the pid block but it is protected . How to unlock that block in v13
Very good tutorial :) Keep it up the good work
please send example program
Thank you for the video. I was trying to use that controller, but there were a few things that I didn't understand. This video describes the controller clearly.
+inneralpha Thanks for the comment.
Good video 👍👍👍👍
Thank you!
Tia portal V13 plc s7-300 ??
Yes, It is possible to use TIA Potal even for S7-300 and 400 systems!
Thank you very much
You're very welcome!