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Chapter 8 Alarms
Page 8.2
8.1.3 How alarms are received and stored
When a new alarm is received, the appropriate indicator LED on the front panel starts flashing. If the indicator is
already flashing because of a previous alarm, it continues to do so. If the indicator is already ON (steady), it starts
to flash.
Information about alarms is stored in two logs:
This gives: • The Alarm Status Display
(1) a summary of the contents of the Historical Alarm Log
(2) an indication of the current status of the system.
• The Historical Alarm Log This contains an individual entry for every alarm stored in the log.
The Historical Alarm Log can store up to 30 entries. When a new alarm is received, one of two things can happen:
If the Historical Alarm Log is NOT full:
An entry for the new alarm is simply added to the list.
If the Historical Alarm Log is full:
It depends on how the system is set up: Either (1) the oldest entry is deleted and the new one is added to the top of
the list, or (2) the new alarm is discarded. In either case, the Status Display is updated automatically.
8.1.4 Examining the Alarm Status Display and Historical Alarm Log
Press the INFORMATION MENU (i) button if you want to examine the Alarm Status Display or the
Historical Alarm Log.
• To bring up the Alarm Status Display, select the Alarm Summary option.
• To bring up the first entry in the Historical Alarm Log, select the Alarm History option.
• To return to the INFORMATION MENU from the two screens , you can use the BACK button
Figure 8.2: How to get to the alarm log