OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
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Operating alarms
9
9.1 Overview
Alarms
Alarms indicate events and states on the HMI device which have occurred in the system, in
the process or on the HMI device itself. A status is reported when it is received.
An alarm could trigger one of the following alarm events:
● Activate
● Deactivate
● Acknowledge
The configuration engineer defines which alarms must be acknowledged by the user.
An alarm may contain the following information:
● Date
● Time
● Alarm text
● Location of fault
● Status
● Alarm class
● Alarm number
● Acknowledgement group
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