What the different between select IO option (increase to close) in PID block and select the increase to close from AO block
In reply to Matt Stoner:
In reply to Hassan.hameed:
In reply to Andre Dicaire:
Just be aware that the AO/OUT has the inversion done for increase to close which might explain what the Operator is seeing. Use PV instead of OUT for the AO block because it is NOT inverted. If you don't have IO_READBACK configured the PV will be Implied Valve Position, when configured and reading from the field it will be Actual Valve Position.
Also Man mode use is not recommended by the operator for AO because of this inversion as entering 0 would actually be 100%. Use Auto mode with SPs for "manually" changing the OUT at the AO block.
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