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6.5.3 How to Read the Alarm and Event Memory List (History List)
The control board GCAU in your system is equipped with an Alarm and Event list. The GCAU board stores the
alarm and events, in order of appearance, in a non-volatile memory (permanent storage). Events in this context
means indicating if the system has been switched to High rate, Float or Commissioning, Entering the setup mode,
Clearing the history etc.
The memory is based on a FIFO mechanism (First In First Out), which means that if the memory is full the oldest
event or alarm will be removed from the list.
The alarm and events are time/date stamped using an RTC (Real Time Clock).
Follow the instructions below.
Select ‘View’ Example
The “history list” screen indicates the quantity of Alarm and Event in the list.
Viewing the “history list” will display first the internal software versions of the GCAU board for reference. This
message is displayed for two seconds. After two seconds the display will show:
Top line shows “event or alarm” text.
A non permanent screen will indicate during 1 s the place (xx) of the “alarm and event” in the history list, its internal
code (xx) and its internal acronym (ttt).
Select ‘View’
Top line shows set point (alarm level) if valid (analog alarms only)
Pressing ‘Next’ will show the date and time of the Alarm/Event:
Date format is dd/mm/yy (if temperatures unit is °C) or mm/dd/yy (if temperatures unit is °F).
FLOATING CHARGE
Monit Conf
Cmnd
MEASUREMENTS
Next
iew Exit
Data: 24.0
Next Back Exit
Date: 16/12/05
Next Back Exit
ime: 11:28:38
Next
ack Exit
HISTORY LIST :12
Next
ie
Exit
OFTWARE VERSION
0
n
‘Event or alarm’
Next
ie
Exit
x/12 : nn
ttt
Next View Exit
From the main menu select ‘Monit’.
Select ‘Next’ until the top line shows below text.