PLCS PID Instructions

Owned by CIMON (Unlicensed)
Mar 26, 2024
2 min read

*There is no need to manually write the instructions explained in the below table since they are automatically created by the PID Special Program.
But if you want to write your own program using the ladder diagram, please refer to the below symbols to enter the PID instructions.

Type

Instruction

Symbol

Processing Information

Condition

 

PID

Initialization

 

PIDINIT

 PIDINIT is used to check the items and to initialize the devices for PID operation.

image-20240326-080940.png

PID control data get assigned from the specified word device address "S".

 

image-20240326-081000.png

 

 

 

PID

Calculation

 

PIDCAL

SV and PV get assigned by specified "S" address and after the PID calculation, the result gets saved in MV according to the "S" word device.