VISA VIs and Functions

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Owning Palette: Instrument I/O 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 VISA VIs and functions to program instruments using VISA.

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

Palette ObjectDescription
VISA Assert TriggerAsserts a software or hardware trigger, depending on the interface type. For software triggers, Default (0) is the only valid protocol. For VXI hardware triggers, Default (0) is equivalent to Sync (5). For PXI triggers, PXI: Reserve (6) and PXI: Unreserve (7) are the only valid protocols.
VISA ClearClears the input and output buffers of the device.
VISA ReadReads the specified number of bytes from the device or interface specified by VISA resource name and returns the data in read buffer.
VISA Read STBReads a service request status byte byte from the message-based device specified by VISA resource name.
VISA WriteWrites the data from write buffer to the device or interface specified by VISA resource name.

VISA Advanced VIs and FunctionsUse the VISA Advanced VIs and functions to accomplish advanced VISA tasks.


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