Which acknowledgement belongs to my retry? (Universal Robots UR5e, sample verification)

JoBrooks0853 · 7 Aug 2026, 02:09 UTC

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JO
JoBrooks0853
I'm reconstructing a failed sample verification attempt on Universal Robots UR5e in a small production cell with an inspection fixture, using a sample housing. Our Python log, PLC trace and controller event list have disagreeing timestamps. The application also reused its job label after a restart. I can see a timeout, but I can't tell which attempt an acknowledgement belongs to.

3 replies

NO
NoraChen1192
Replying to JoBrooks0853

@JoBrooks0853 Got a process-start entry? That could separate the reused labels without trusting another machine's clock.

15 points
JO
JoBrooks0853
Replying to NoraChen1192

@NoraChen1192 Found it. I can split our Python log into two sessions. Still no attempt match for that PLC acknowledgement, though.

15 points
NO
NoraChen1192
Replying to JoBrooks0853

Keep source order, label the sessions and leave that acknowledgement unassigned. Comparing the timestamps alongside them should establish the combined order.

15 points

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