| Description | The upper 32 bits of the absolute value for threshold for
the sampled statistic. The actual threshold value is
determined by the associated instances of the
cHcAlarmFallingThreshAbsValueLo and
cHcAlarmFallingThrsholdValStatus objects, as follows:
ABS(threshold) = cHcAlarmFallingThreshAbsValueLo +
(cHcAlarmFallingThreshAbsValueHi * 2^^32)
The absolute value of the threshold is adjusted as required,
as described in the CHcValueStatus textual convention. These
three object instances are conceptually combined to
represent the falling threshold for this entry.
When the current sampled value is less than or equal to this
threshold, and the value at the last sampling interval was
greater than this threshold, a single event will be
generated. A single event will also be generated if the
first sample after this entry becomes valid is less than or
equal to this threshold and the associated
cHcAlarmStartupAlarm is equal to fallingAlarm(2) or
risingOrFallingAlarm(3).
After a falling event is generated, another such event will
not be generated until the sampled value rises above this
threshold and reaches the threshold identified by the
cHcAlarmRisingThreshAbsValueLo,
cHcAlarmRisingThreshAbsValueHi, and
cHcAlarmRisingThresholdValStatus objects.
This object may not be modified if the associated
cHcAlarmStatus object is equal to active(1). |