I'm reviewing our non-safety job handshake for sample verification 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
@FionaArcher0412 Take an ownership table and a retained-request proposal to the interface owner. A request held until matching acknowledgement should settle the handshake in an offline review.
Yes, I overstated that. Retention addresses the missed pulse. The offline review also needs matching identity, reset ownership and restart cases before the design is complete.
@NoraChen1192 Should I record readers as well as the single writer? Our existing phrase used by PLC doesn't distinguish setting, reading or clearing a field