our fr10 log reuses the job name after restart

HenryBarnes0525 · 2 Feb 2026, 01:25 UTC

Closed
HE
HenryBarnes0525
I can see the inspection timeout, but can't assign the acknowledgement beside it. Python reused the job label after restart, PLC and controller clocks disagree. Sorting all three logs by their displayed time makes a very tidy guess

13 replies

EM
EmmaArcher0376
Replying to HenryBarnes0525

Start with the order inside each source and mark the restart. Look for a shared event you can actually identify in more than one log. I wouldn't join the acknowledgement to an attempt just because its time falls nearby.

13 points
HE
HenryBarnes0525
Replying to EmmaArcher0376

Python has a sequence counter, but it starts over too. PLC trace includes the request change and receipt. Controller list only gives the repeated job name around that point

17 points
OW
OwenChen1182
Replying to HenryBarnes0525

Have you preserved the originals? I'd be nervous about a combined timeline quietly changing the timestamps until everything looks consistent.

13 points
HE
HenryBaker0438
Replying to HenryBarnes0525

Does acknowledgement mean the inspection application received the request, or that the inspection result was available?

-1 points
FI
FionaAllen0325
Replying to OwenChen1182

Owen, absolutely. Put any estimated clock offset in a separate comparison column. Do not edit the source time. If the evidence cannot distinguish the two attempts, the combined table should show that instead of choosing one for neatness.

11 points
HE
HenryBarnes0525
Replying to HenryBaker0438

Owen, originals kept untouched. HenryBaker, the authors confirm this acknowledgement is receipt only. It doesn't establish a result. We can align that request/receipt pair between Python and PLC before the restart

20 points
EM
EmmaArcher0376
Replying to HenryBarnes0525

That gives you a useful piece of the sequence. Does anything identify the post-restart request independently of the reused label, or is that still where the reconstruction runs out?

22 points
HE
HenryBarnes0525
Replying to EmmaArcher0376

That's where it runs out. Post-restart acknowledgement has no saved attempt identity beyond the recycled label. I can narrow its place in the PLC sequence, not say which application attempt owned it

1 points
OW
OwenChen1182
Replying to HenryBarnes0525

Then don't squeeze an answer out of it. Can the next version carry an identity through restart, or will each source still be inventing its own label?

14 points
FI
FionaAllen0325
Replying to OwenChen1182

The authors need a common attempt reference and a defined lifetime for it. I would include source session and event meaning in the logging review too. Otherwise the next investigation could have unique numbers attached to three different definitions of accepted.

6 points
HE
HenryBaker0438
Replying to FionaAllen0325

Will an unknown old acknowledgement stay unresolved when the updated application restarts?

13 points
HE
HenryBarnes0525
Replying to HenryBaker0438

That's in the change request. No plan to assign the old event using the new identity scheme; it can't recover information we never saved. Author is testing the new references through restart and duplicate receipt

11 points
EM
EmmaArcher0376
Replying to HenryBarnes0525

Useful distinction. Has the incident summary stopped calling that receipt a completed inspection? That wording could mislead someone even with the timeline uncertainty clearly marked.

18 points

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