Limiting CV while maintaining controller in program mode

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    Jim Manley
    Jim Manley
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    Is that possible to limit the value of CV from a PIDE to 25% while still being able to operate the PIDE in ProgramAuto mode.  I can see where I can limit the CV Limits on the EU/Limits tab of the PIDE Properties but I’m worried that if I do that, the controller will not work properly in closed loop mode.

    Revision:  When I tried to do this, the controller did nothing to control the loop.  The PV blew past the SP and the CV never waivered.

    Update 1:  After talking with the TechConnect, I suspect the issue has to do with the gains on the PIDE.

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