The alarm that may be sent when this entry is first
set to valid. If the first sample after this entry
becomes valid is greater than or equal to the
risingThreshold and alarmStartupAlarm is equal to
risingAlarm or risingOrFallingAlarm, then a single
rising alarm will be generated. If the first sample
after this entry becomes valid is less than or equal
to the fallingThreshold and alarmStartupAlarm is equal
to fallingAlarm or risingOrFallingAlarm, then a
single falling alarm will be generated.
This object may not be modified if the associated
alarmStatus object is equal to valid.