The absolute value (i.e. unsigned value) of the
cHcAlarmVariable statistic during the last sampling period.
The value during the current sampling period is not made
available until the period is completed.
To obtain the true value for this sampling interval, the
associated instance of cHcAlarmValueStatus must be checked,
and the value of this object adjusted as necessary.
If the MIB instance could not be accessed during the
sampling interval, then this object will have a value of
zero and the associated instance of cHcAlarmValueStatus will
be set to 'valueNotAvailable(1)'.