The following functions are used to find alerted 1-wire devices:
•owAlarmAccess
Selects the alerted device and locks the OneWire net.
•owAlarmGetFamily
Reads the family of the alerted device.
•owAlarmGetID
Queries the ID of the alerted device.
•owAlarmQuery
Queries if there are alerted devices.
•owAlarmRelease
Releases the lock on the OneWire net.
•owAlarmSearch
Searches for alerted devices.
