Email from alarm event

[NHL]

Hi, sorry if this has been covered before but i'm looking to send an email notification based an alarm being fired once. 

I've got the emails working just fine.

If I use the fired tab of the alarms as they update that just triggers another email to be sent, as you can imagine if you've got the cycle time set low then lots of emails are triggered. Is their a way to only send one email based from the first trigger and not send any more until the acknowledgment has occurred?  

 

Thanks 

[AzeoTech]

First, I would look to changing your alarm settings so they don't constantly refire.  This is called hysteresis and is why there is a separate Reset expression.  For example, if you want the alarm to trigger when temperature > 100, you would set the Reset condition to temperature < 90 say, so that noise in the temperature reading doesn't cause it to constantly fire and reset.

To keep it from firing a separate email until acknowledgement you would have to create a flag (a variable) that gets set when the email is sent, and reset in the Acknowledge event.  The email would only send when this flag is clear.