I want to close alarm by protocol Integration.I call UpdateAlarm method and the response is successfull but in the SmartClient, Alarm state is not modified.How can I close an alarm by Protocol Integration?

If you close the alarm by using the button in the Alarm and Event Viewer sample does it work then?

If this works the sample might hold a clue even as the sample does not use protocol. If this works you can either look at the code of the sample or trace the communication of the sample and compare to your own code.

Thank you Bo for your answer.

You’re right. Adding state, priority and time make alarm correctly updated.