batPowerLevel will return the power level of the backup battery.
Input:
None
Returns: SINT
-1
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- Error.
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0-5
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- Power level, where 5 is maximum power.
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Declaration:
FUNCTION batPowerLevel : SINT;
Example:
INCLUDE rtcu.inc
PROGRAM test;
VAR
batlvl : SINT;
END_VAR;
BEGIN
...
IF batModuleMounted() THEN
batlvl := batPowerLevel();
IF batlvl > -1 AND batlvl < 3 THEN
DebugFmt(message:="Battery level=\1",v1:=batlvl);
END_IF;
END_IF;
...
END;
END_PROGRAM;
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