How to trigger action if trap received in last 15 minutes

[user4589]

I want to trigger an action a maximum of every 15 minutes if I receive a new trap from a device

So I have a trigger similar to this example:
Expression: {Template SNMP traps:snmptrap["cpqRackPowerSubsystem(NotRedundant|LineVoltagePro blem|OverloadCondition)"].str("LineVoltageProblem")}=1&{Template SNMP traps:snmptrap["cpqRackPowerSubsystem(NotRedundant|LineVoltagePro blem|OverloadCondition)"].nodata(15m)}=0

My problem is that if I were to receive a trap every 5 minutes, then the trigger would only fire once, because the nodata(15m) is never false to reset the trigger. And I want it to fire every 15 minutes, if there is a new trap.

I tried "and"ing {TRIGGER.VALUE}=0 with the expression, but it toggles from true to false every 30 seconds.

Any suggestions?

[evertonco]

I believe you can do this by configuring your action "step duration" to 900 seconds and step "to" set to 0 seconds (infinitely).

[user4589]

A most excellent idea. Thank you. That works.

One note...values such as {ITEM.VALUE1} do not update. But if you reference items directly they will update. For instance:
{Template SNMP traps:snmptrap["cpqRackPowerSubsystem(NotRedundant|LineVoltag ePro blem|OverloadCondition)"].last()}
will show you the most recent trap, but {ITEM.VALUE1} will show the item that initially caused the trigger.

[evertonco]

Great.

About item macro, this is expected behavior. In most case, you want to know what value of item that fires the trigger. Anyway this is a little bit confusing. Good to know.