domophone (Customer) asked a question.

How do I "write all edits to PLC" in PID Monitor Mode using an automated command.

I have setup a PID loop on a CLICKPLC system with the option for service personnel to run an auto-tune of a PID loop by following a sequence that ends up setting bit C(n+17). This works great, and once completed, the PID figures out its new values. how do i then write these values into the PLC without having any type of display or computer connected. I basically want to know how to press the "write all edits to PLC" button found in the bottom right of the PID Monitor Mode by setting a bit.


  • ADC TechnologyGroup_01 (AutomationDirect)

    Since you are using the System bit to enable the Auto-Tuning, the resulting new parameters are already running in the PLC. All PID registers and bits are made Retentive, so those parameters will be maintained just as if they were sent by the Programming Software. If you want those parameters saved back into your project file you would need to go online and open the PID Setup then "Read Register Values From PLC" > OK > Save Project.