VISA Peek 64 Function

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Owning Palette: Low Level Register Access Functions

Requires: Base Development System

Reads a 64-bit value from the address location specified in offset.

You must use the VISA Map Address function to map the address before you call this function. The address must be a valid memory address in the current process.


VISA resource name specifies the resource to be opened. The VISA resource name control also specifies the session and class.
offset contains the offset, in bytes, from the register location originally mapped in the mapped memory space.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
VISA resource name out is a copy of the VISA resource name that VISA functions return.
value contains the read data.
error out contains error information. This output provides standard error out functionality.

VISA Peek 64 Details

If you use NI I/O Trace to debug this function, enable the Force peek/poke calls to appear in NI I/O Trace option in Measurement & Automation Explorer (Windows), visaconf (Linux), or NI-VISA Configuration (Mac OS X). If you do not enable this function, NI I/O Trace might not log this function.


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