TP 270, OP 270, MP 270B (WinCC flexible)
Operating Instructions, Edition 03/2004, 6AV6691-1DD01-0AB0
C-1
Glossary
C
Acknowledge
Acknowledgement of an alarm confirms that it has been noted.
AG
A PLC in the SIMATIC S5 series, e.g. the AG S5-115U
Alarm, acknowledging
Acknowledgement of an alarm confirms that it has been noted.
Alarm, arriving
Moment at which an alarm is triggered by the PLC or HMI device.
Alarm, departing
Moment at which the triggering of an alarm by the PLC is reset.
Alarm logging
The printout of user-defined alarms parallel to output on the HMI device screen.
Alarm, user-defined
A user defined alarm can be assigned to one of the following alarm classes:
• Fault
• Operation
• User-defined alarm classes
A user-defined alarm makes reference to a certain operating status of the monitored system
which is connected to the HMI device via the PLC.
AS
A PLC in the SIMATIC S7 series, e.g. the SIMATIC S7-300
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