PIDAT INSTRUCTION

[fasyaly 0]

Hi, could anyone help? I'm a beginner in PLC, I confuse about PIDAT instruction. there is input word and output word. what should i fill in this section? i've read the programming manual, but i still dont understand about it. And for the set value if i want to control dc motor speed, should i fill it with the rpm or what? 

The type of my PLC is CP1H XA40DRA

THANKS!!

[IO_Rack 178]

2 hours ago, fasyaly said:

there is input word and output word. what should i fill in this section?

The Input is your Process Value and the Output is your Control Variable. These would be 'speed' in your case.

3 hours ago, fasyaly said:

should i fill it with the rpm or what?

How is the speed being controlled? Analog output? High Speed Outputs?

Do you need to have PID control? Does the speed need to adjust dynamically?

[fasyaly 0]

Yes i use analog output, than convert it into PWM using microcontroller. Yes i need to use PID. It will work like a conveyor, when i add load to the conveyor the speed will decrease then it will be stabilized with PID