Software / Other / BigMouth / 19


                      Check the event circuit condition

Func AX	19h
Param DX	None
Return AX	0 - event circuit closed 1 - event circuit open
Delay	None

        Check the event circuit condition.  As long as the event circuit
        remains closed the Event bit will indicate a '0' or fired state
        (low active logic).  This means that in applications where the
        circuit will only be closed momentarily the application program
        will have to poll with ALARM_CHECK quite often to catch the bit
        changing.