What is considered bad quality on an alarm?

Ignition
1

In the documentation, the explanation is lacking a bit.

  • Bad Quality BadQuality - Active if the tag value becomes a bad quality, for example, on communication loss.

Does this include Bad_Disabled or Uncertain Values? Does it alarm on anything that is not a 'Good' status? I am primarily trying to catch Uncertain values. Would just like some clarity on what the expected bahavior is for this alarm selection?

2

From experience and testing, alarms that are set to go off on “Bad Quality” will go off if the quality of the tag is “Uncertain.” Expressions has a useful function to use to test for it, forceQuality(). Alarms also will not go off for any tags that are disabled, no matter the alarm mode.