One coupon acknowledgement between two reused job labels

AnilBennett0723 · 11 Jun 2026, 03:11 UTC

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AN
AnilBennett0723
Trying to reconstruct an FR5 inspection timeout. Python, PLC and controller clocks disagree. Application restarted and reused the job label. One acknowledgement, two possible attempts. I need to tell the shift what we know without turning the closest timestamp into an answer.

10 replies

NA
NadiaBrown0900
Replying to AnilBennett0723

What does that acknowledgement actually acknowledge: receiving the request or finishing the inspection?

17 points
AN
AnilBennett0723
Replying to NadiaBrown0900

Request receipt according to the interface sheet. It says nothing about the coupon result. Both attempts used the same job label.

0 points
DA
DanielAli0217
Replying to AnilBennett0723

Any session or connection identity retained with it?

11 points
AN
AnilBennett0723
Replying to DanielAli0217

Not in the PLC entry. Python records its restart, but that marker has no matching entry on the other side.

1 points
IS
IsaacBrown0955
Replying to AnilBennett0723

Keep the order inside each log first. Can you find any event visible in both systems whose identity is independent of the repeated job label?

13 points
AN
AnilBennett0723
Replying to IsaacBrown0955

No common identified event found yet. We can order Python's two attempts internally. Cannot place the acknowledgement between them with confidence.

4 points
AL
AlexChan1081
Replying to AnilBennett0723

Keep that distinction in the report; sorting three clocks together can give an impressive-looking fiction.

18 points
NA
NadiaBrown0900
Replying to AnilBennett0723

Who is deciding what happens to the coupon while that result stays uncertain?

2 points
AN
AnilBennett0723
Replying to NadiaBrown0900

Quality owns disposition. It's held for review, no automatic repeat inspection triggered from this reconstruction.

11 points
IS
IsaacBrown0955
Replying to AnilBennett0723

For future records, ask for an attempt identity that survives the trip through the interface. That will not recover the missing link in this old event, so keep it unresolved.

7 points

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