43
ProData II
Battery
The internal clock is fed from the supply voltage.
If the supply voltage fails then the clock is powered by
the battery.
The clock provides date and time information, e.g. for
the records and events.
The life expectancy of the battery is at least 5 years
with a storage temperature of +45 °C. The typical life
expectancy of the battery is 8 to 10 years.
The battery status (full capacity, undervoltage, no capacity)
can be read via the Modbus (address 4942) / Ethernet using
the GridVis software. If the battery is exhausted and no
time synchronisation (NTP) is set, the software takes
the last valid time stamp from the memory and resumes
from there.
The following chapter provides information about
changing the battery.
Modbus
Address
Bit
Status description
4942
(short,
16-bit)
0
• Battery capacity exhausted
• Clock has stopped and must
be set if necessary
• Battery should be replaced
1
• Battery capacity nearly
exhausted
• Battery should be replaced
2
• Battery capacity low
• Battery should be replaced
Table: Battery status
(can be read via Modbus in address 4942).
Summary of Contents for ProData 2
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