The Property ExceedingValue represents the monitored value.
The Property Deadband represents the deadband value.
The Property ExceedingLimit represents the exceeding limit.
It is the LowLimit if
a) the new state is LOW_LIMIT, or
b) CurrentState is LOW_LIMIT and the new state is NORMAL
It is the HighLimit if
a) the new state is HIGH_LIMIT, or
b) CurrentState is HIGH_LIMIT and the new state is NORMAL