Is there an expression to acknowledge all cleared alarms in Lookout 6.0

[alan g.]

I am looking for an expression that I can use to acknowledge all cleared alarms. I need to ONLY acknowledge the cleared alarms and no the active alarms.

I want to do this with a timer just before I send them to pager. I am finding that once my pager expression becomes true it tries to page all alarms, even if they have cleared.

If I acknowledge the alarms just before I send to pager then I am hoping to page out only the active alarms.

[Ryan.S]

I don't think there is such an expression that can acknowledge all the cleared alarms.
Who has any ideas?

[alan g.]

Any NI application engineers here that could help out with this on?

Is this an item that could be put in as a "feature request"?

Thanks, Alan

[Ryan.S]

I can't find a way to only acknowledge the cleared alarms, but if you acknowledge all the alarms, those active alarms will not be cleared and still be active. So, just to "ack" all the alarms may meet your requirement.

[alan g.]

The problem that I have is with alarms that have cleared, but not acknowledged. We are using pagers to notify us of alarms after hours. We have a pager timer that waits 10 minutes (600 seconds). If the alarm is still active after 10 minutes, it sends it to the pager.

The problem is when it sends to pager, lookout try’s to send all alarms to pager, even if there are alarms in the activity window that have already cleared. I don't care about alarms that have already cleared.

I only want active alarms to go to the pager. I was hoping that my work around was to have an expression to ack all cleared alarms at about 598 seconds, then page alarms at 600 seconds. This would then "filter out" any non-active alarms from the pager object.

None of this would be required if I could some how page only active alarms. I had previously investigated that, but was told there was no allowance to send only active alarms to pager.

[Rkdomer]

Alan g. wrote:

I only want active alarms to go to the pager. I was hoping that my work around was to have an expression to ack all cleared alarms at about 598 seconds, then page alarms at 600 seconds.

Have you tried the $Alarm.ack datamember?  Edit connections on $Alarm and connect whatever opject (delayon or pulse?) timing the 598 seconds to the writable data member ‘ack’.  When the timer object turns ‘on’, all alarms will be acknowledged.