Hi Think Tank,
I have set up a correlation that sends an SNMP command to a device to change a parameter value. When the alarm condition clears, I would like the original parameter value reinstated.
Is there a way of doing this?
Thanks
Hey Tom
When your correlation rule triggers you’re most likely executing an automation script that does that parameter set. Before setting that parameter to a new value you’ll need to save its original value first. E.g. you could save it as a custom alarm property on one of the alarms itself that triggered it.
When (the same or a new) correlation rule triggers upon clear then you could read the original value from your alarm property and set it back.
Triggering on clear could be done as follows:
Hi, I updated my initial reply with a screenshot on how to trigger on clear because I can’t post images in comments 🙂
Does that help you out?
Jochen, you’re a legend!
Yes, that worked. In fact, I feel a bit silly not thinking of filtering further on the alarm severity now you’ve pointed that out. Works a treat now.
Have a great weekend 🙂
Awesome! Likewise! 🙂
Hi Jochen,
Thanks for your reply! Sorry, but don’t quite follow what you meant though.
If I could configure a correlation when the alarm clears that would be great but can’t see how I can do that with the filters available.
Maybe to explain it a bit better….
I want to instigate different input delays on an audio processor depending on whether it is fed by the main or standby inputs. So the correlation rule uses the input switcher source as the trigger. Unfortunately I cannot choose indices when using the source, i.e. main or standby input, otherwise it would be easy to have one rule for each.
And, as I mentioned above, I can’t work out how to configure a rule for when the Standby Input alarm clears. That would also solve the issue.
I tried adding an alarm property that set the delay I wanted as a default on the audio processor but that did not appear to really have any effect.