How to input a negative value as set point in a PID

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Bergy (Customer) asked a question.

April 25, 2021 at 5:52 PM

How to input a negative value as set point in a PID

Process Control

ADC Community_02 (Automationdirect.com)
5 years ago
which plc are you using?
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Garry (Customer)
5 years ago
Hi Bergy
A negative value should not be an issue in a PID. An example would be a temperature controller controlling a cooling process.
Here is a thread that will show you the basic math behind the PID Loop.
https://accautomation.ca/click-plc-pid-using-factory-io/
Regards,
Garry

https://accautomation.ca/
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How to input a negative value as set point in a PID