Alarms & Events VIs (DSC Module)

LabVIEW Datalogging and Supervisory Control Module 8.2 Help
August 2006

NI Part Number:
370246E-01

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Use the Alarms & Events VIs to acknowledge alarms, display alarm summary or event history information, or obtain alarm summary status.

The VIs on this palette can return general LabVIEW error codes or specific DSC Module error codes.

Refer to the labview\examples\lvdsc\Alarms directory for examples of using the Alarms & Events VIs.

Palette Object	Description
Acknowledge Alarms	Acknowledges alarms by shared variable name, by instance, or by alarm area. Use this VI to acknowledge alarm occurrences for the specified shared variable. You must manually select the polymorphic instance to use.
Alarm Status	Returns a summary of the alarms associated with shared variables and filtered by read parameters.
Clear User Defined Alarm	Clears an alarm you create using the Set User Defined Alarm VI. If you specify an alarm not created using the Set User Defined Alarm VI, this VI returns an error.
Read Alarms	Returns alarm information for the shared variables you specify.
Read Events	Returns event information compiled from all machines from which you have previously read an alarm or event.
Set User Defined Alarm	Creates an alarm that is not associated with a shared variable. LabVIEW automatically clears all alarms created using this VI when LabVIEW shuts down.
Set User Defined Event	Creates an event that is not associated with a shared variable.