YINGD Posted March 15, 2016 Report Share Posted March 15, 2016 I have an application where the PV moves very fast. When a known disturbance or an anticipated disturbance occurs, I would like to pause the PID loop calculation and lock by CV where it is. I see that Unilogic has a Pause I&D calculation that seems to be the feature to use in this sort of situation but what I am wondering is whether or not I would have better results if I simply de-energized the PID Run Block and then re-energized it when the process is expected to be stable again. In other words, what is the difference in the calculation between simply removing the PID Run command and Pausing the I&D calculation? Quote Link to comment Share on other sites More sharing options...
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