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tag value not getting to zero on removal of power from FF device

on delta v  as the power is removed from the FF device the last value is held and interlocks doesn't operate. How to make the field value Zero on removal of power from FF device so that every where zero is reflected including in trending.

baiju2p
  • Rein
    You may use a CALC block after the AI block. In the expression, when status is BAD, OUT=0. Else, IN=OUT.
    For interlock, use the trip signal from SIS. Not advisable to use the signal from PAS as ESD or interlock.

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