Event Handling VIs and Functions

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

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Owning Palette: VISA Advanced VIs and Functions

Requires: Base Development System. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

Use the Event Handling VIs and functions to use VISA events with your instruments.

The VIs and functions on this palette can return VISA error codes.

You also can access the Select Event Type constant from this palette.

Palette ObjectDescription
VISA Disable EventDisables servicing of an event.
VISA Discard EventsDiscards all pending occurrences of the specified event type and mechanism from the specified session.
VISA Enable EventEnables notification of a specified event type.
VISA Wait on EventSuspends execution of an application thread and waits for an event type for a time period not to exceed that specified by timeout.
Wait for RQSWaits for a service request from a device. Before you call this VI, first enable the event by calling the VISA Enable Event function and specifying Service Request as the event type.


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