Silence of all external alarms was requested
System details: AC460 controllers and 800xa5.0 SP2 RevD frontend.
We received a message "Silence of all external alarms was requested" in operator actions.
No change has been done before, above said message appears.
Audible alarm icon in application bar was intact (no body changed anything).
Aspect server was unmanned.
alarm stamping and corresponding sounds are working proper.
what could be the reason of such messages ("Silence of all external alarms was requested")?
please find attached screenshot for your reference.
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