David Williams (asker) Sep 8, 2009:

Domain of the question Yes, in hindsight I guess you're right, it is about PLCs. Unfortunately I can't see a way of changing the domain, although sometimes the ProZ admins do see fit to make changes as they see fit, even after the question has been answered.

DC Josephs Sep 8, 2009:

NB: I probably would have chosen a different domain (probably industrial), as strictly speaking the Simatic S7 is not a computer in the generally accepted sense of the word, but a programmable logic controller (PLC), and your text seems be documentation for a specific application.

Stephen Sadie Sep 8, 2009:

Maybe the word Gruppe needs more attention to make sense out of this. Could it refer to a group of componentry, David?

DC Josephs Sep 8, 2009:

It's simpler than it sounds When the machine is in trouble/requires operator attention, it emits - is programmed to emit - a godawful racket. By canceling the acoustic signal, we say that the operator "acknowledges" the error. Presumably after "Quittierung" the operator will clear the problem and continue the cycle, reset the cycle or tell the machine to continue. All this, of course, is mediated by the S7.

Caro Maucher Sep 8, 2009:

Ich dachte auch mehr an Kontext im Sinne von, worum geht's in dem Text überhaupt. Was gibt es sonst noch für Gruppen. Worauf bezieht sich das 'gleichzeitig'. Was ist das für ein Hupton, warum quittieren die den. Wer wie was, wieso weshalb warum...

David Williams (asker) Sep 8, 2009:

No more context available :-( This is the full definition given and there's nothing more about it elsewhere in the doc.

Caro Maucher Sep 8, 2009:

Not without more context, it doesn't! (c;