Can I use an alarm template to create Information Event when a numeric parameter changes from the previous value?
Hi Michael,
As far as I know this is not possible. A possible workaround could be defining thresholds in the Info column (see DataMiner Help - Configuring an alarm template to generate information messages). When adding a value (or threshold) in the INFO column, DataMiner will generate an information event whenever the parameter value goes above or below that threshold. This could work for discreet parameters, but for analog parameters I believe it will not be feasible.
This is not possible as far as I know.
Is there a specific use case for this?
If the goal is to see the history and know when and how the value changed, I believe that real-time trending can provide that information.
If the goal is to trigger actions when the parameter matches certain thresholds, an actual alarm template feels like the way to go. Worst case, a scheduled task could be set up triggering an automation script to periodically check the parameter value with custom logic.
H Michael, I'm not sure if this hidden legacy feature still works but its definitely worth giving a try. I believe that if you enter ";;" (so 2 point comma's) as value in the info field of the alarm template, it will actually generate an information event each time the parameter changes value.
I think a rate alarm with a delta equal to the smallest decimal or step size of your parameter should achieve what you want.
I came across this question whilst searching for the same answer. I have however noticed in Dataminer Docs:
“Configuring an alarm template to generate information messages
For parameters of type string or double, from DataMiner 10.2.2/10.3.0 onwards, you can enter values that contain a wildcard (* or ?).”