How to generate negative output in PID compact? | SIEMENS TIA Portal | S7-1200 | S7-1500

If you want the the compact PID for S7-1200 to generate negative output signals, in theory , you can use the negative gain or the negative error signal.Most PID algorithms have the low limit to block the negative outputs on PID.

In this video , you can see how to change "Config.OutputLowerLimit" in PID compact from 0 to a negative value like -100.0 and make a pure P controller for the test purposes. It is a good tutorial for PID compact on negative command generation that will be used internally in the user program in SIEMENS TIA Portal.

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How to generate negative output in PID compact? | SIEMENS TIA Portal | S7-1200 | S7-1500