Operating instructions

Operating a project
8.5 Entries using the keys
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
203
Acknowledge alarms
Key Functions Description
ACK
Acknowledge Acknowledges the currently displayed fault
alarm or all the alarms of an alarm group as
group acknowledgment.
The LED lights up as long as unacknowledged fault
alarms are active.
Displaying infotext
Key Functions Description
HELP
Displaying infotext Opens a window with the configured infotext at the
selected object, for example alarm or I/O field. If an
infotext exists for the selected object, the LED
lights up.
Multi-key operation
Unwanted actions may be triggered, if the operator unintentionally actuates a
key combination.
CAUTION
Unintentional actions
In "Online" mode, simultaneous operation of more than two keys may cause unintentional
actions in the plant.
Never press more than two keys simultaneously.