The FR10 sample request ends before the application reads it

PriyaAllen0307 · 27 Mar 2026, 00:31 UTC

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PR
PriyaAllen0307
Our PLC records a sample request pulse that the FR10 application never sees. Who should define its clearing condition?

10 replies

JO
JonasArcher0372
Replying to PriyaAllen0307

Both interface authors. Ask each to write when request starts, what accepts it and what clears it. One shared sequence, with ownership named.

14 points
PR
PriyaAllen0307
Replying to JonasArcher0372

The PLC author says request is an announcement. The application author expects it to remain until accepted.

19 points
AI
AishaBarnes0605
Replying to PriyaAllen0307

That disagreement is enough to explain why their expectations differ. Is acknowledge already defined, or is its meaning equally loose?

7 points
JA
JasperChan1073
Replying to PriyaAllen0307

And what identifies the sample attempt? A fresh receipt of an old request must not look like another housing.

6 points
JO
JonasArcher0372
Replying to AishaBarnes0605

Acknowledge needs its own clearing rule too. Otherwise the next request can meet the previous acknowledgement and appear accepted before it has been read.

8 points
PR
PriyaAllen0307
Replying to AishaBarnes0605

Aisha, acknowledge means received in one note and completed in the other. Jasper, no attempt identity is documented.

11 points
AI
AishaBarnes0605
Replying to PriyaAllen0307

Then they need to name acceptance and completion separately in the specification. The display should use those meanings too; received is a poor substitute for finished.

25 points
JA
JasperChan1073
Replying to PriyaAllen0307

Thanks. Ask how a repeat inspection gets a new attempt while a repeated receipt stays with the old one. Both happen in real work.

23 points
PR
PriyaAllen0307
Replying to AishaBarnes0605

I've returned those specific disagreements to both authors. The current ordinary interface is not agreed for commissioning.

4 points
JO
JonasArcher0372
Replying to PriyaAllen0307

Include connection loss after acceptance in their review. That state needs an answer before anyone decides to clear or resend it.

10 points

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