Chapter 10 Built-in PID Functions
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Step 1: Each channel 0 of the analog input and output modules is enabled using the regular On contact.
Step 7: The analog input module input data are transferred to PIDRUN Loop 0 PV using the regular On
contact.
Step 12: If the user turns the M00000 bit On, control operation of PIDRUN Loop 0 is performed.
Step 17: MV output of PIDRUN Loop 0 is transferred to analog output module output data.
Step 21: The scan is completed.
10.7.3 PID controlling
(1) Variable Registration
Control settings is performed by registering PID variables in the Variable Monitor” window.
Clicking the right button of the mouse and then selecting “Register in Variable/Description” in the Variable
Monitor window allows you to see the “Variable/Device Select” window. Selecting PID in the “List” box and
deselecting “All” and then entering 0 (loop number) in “Parameter Number” allows you to see the variables
to store all the settings and states for Loop 0. Selecting all variables and then clicking “Confirm” enables
you to monitor the variables or change their values even when the program is in “RUN” mode.
