Event Handling VIs and Functions
Installed With: Base Package. 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 Object | Description |
|---|---|
| VISA Disable Event | Disables servicing of an event. |
| VISA Discard Events | Discards all pending occurrences of the specified event type and mechanism from the specified session. |
| VISA Enable Event | Enables notification of a specified event type. |
| VISA Wait on Event | Suspends execution of an application thread and waits for an event type for a time period not to exceed that specified by timeout. |
| Wait for RQS | Waits 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. |