3.6. BACK-UP BATTERY
The battery state is not an instant value of the battery level,
instead it gives an average value computed every 10 seconds.
Note:
The actual computed value may be consulted at any time with the
XABS
message, see the TAIP reference for more information.
Query the actual battery status:
Example
>
QXABS
<
For a back-up battery at 3.98 volts (72% of charge):
>
RXABS13980P072
<
The first “
1
” is indicating that the main power source is ON.
To change a reporting schedule and/or report when the main power
source is lost or damaged the
F13
signal is used. See the
Event Ma-
chine
section on the
Configuration
chapter for more information.
Send event code 44 whenever the main power source gets discon-
Example
nected:
>
SED44XV0;F13-
<
Sending reports whenever the battery level reaches some value or
whenever it falls from another value
7
is possible by using the
Event
Machine
with the
B
signals which are configured with the
XAGB
mes-
sage.
Have the unit send event code 19 whenever the battery level gets
Example
higher than 90% and code 20 whenever the voltage falls below 40%:
Create the 2 battery level thresholds:
>
SXAGB03P00090
<
>
SXAGB04P00040
<
Create the events associated with signals
B03
and
B04
:
>
SED19XV0;B03+
<
>
SED20XV0;B04-
<
7
Up to 5 battery level thresholds may be defined with the
XAGB
message.
49
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