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Notification frequency for noisy activity

Question asked by ArunPi on Feb 24, 2016
Latest reply on Feb 24, 2016 by ArunPi

Hi All,

I have a simple notification doing a simple compare operation on a point value (0 or 1), with a periodic check of one minute. ("Notify only on change in status" is on but no resend or non-repetition interval set).

The device reports values once a minute, and got into a state where it was toggling on and off nearly every minute.

This generates lots of notifications, as expected, but on examination not as many as I would expect. During a particular period there were 45 instances where there was a transition from 0 to 1 (the notification condition), but only 10 triggers.

Is there some other duplicate/noise suppression happening here, or some other explanation why I'm seeing fewer triggers than transitions?