Our housing count goes up when the monitor comes back

The PLC has a job number. Our app reads only the completion bit at present. Bit embarrassing, since the number is on the interface sheet

Was the first count saved before you disconnected? I ask because remembering the last displayed number and remembering which job was counted are different things in our little tracker.

The total was saved. There isn't a list of counted jobs, just a running total in the local file.

Then give the maintainer that exact replay case: saved total, already-counted job still high, new app connection.

Does the job number start again after a PLC restart?

Yes. Controls confirmed it resets. We need a run identity with it, not just the bare job number. They're reviewing what the PLC can retain and report reliably.

That caught ours in testing. We added a list of jobs and were delighted until a new run reused the numbers. It is worth testing a completed job that the app never saw, too; otherwise the duplicate fix can quietly throw away missing results.

Maintainer has both cases now, Alex. We removed my ignore-first-reading idea from the change request. Revised interface is still being worked out, so I haven't got a fixed count to report.

Thanks for checking the reset, Noah; that belongs in our teaching example as well.