Can I reconstruct sample verification when the clocks disagree? (Universal Robots UR5e)

JoBaker0505 · 1 Sept 2026, 14:52 UTC

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JO
JoBaker0505
I'm reconstructing a failed sample verification attempt on Universal Robots UR5e in a workshop cell with separate controller logs, 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

AM
AmyBennett0728
Replying to JoBaker0505

@JoBaker0505 Got a process-start entry? That could separate the reused labels without trusting another machine's clock.

13 points
JO
JoBaker0505
Replying to AmyBennett0728

@AmyBennett0728 Found it. I can split our Python log into two sessions. Still no attempt match for that PLC acknowledgement, though.

18 points
AM
AmyBennett0728
Replying to JoBaker0505

@JoBaker0505 Keep source order, label the sessions and leave that acknowledgement unassigned. Comparing the timestamps alongside them should establish the combined order.

11 points

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