Where should request ownership be written down? - fixture inspection

OmarCarter1013 · 2 Aug 2026, 07:16 UTC

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OmarCarter1013
I'm reviewing our non-safety job handshake for fixture inspection with Fairino FR5 in a PLC-coordinated fixture inspection cell, using an inspection coupon. The PLC sends a brief request, and our application sometimes misses it. I can't find anything clear about who owns each signal or when it gets cleared. Safety functions are independently engineered; this is the ordinary job interface.

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AnilBrooks0810
Replying to OmarCarter1013

@OmarCarter1013 Does your trace show when the PLC request is raised and cleared relative to application polls, including which side performs the clearing?

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