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How Can I Get a List of Open VISA Sessions in LabVIEW?

Primary Software: Driver Software>>NI-VISA
Primary Software Version: 4.4.1
Primary Software Fixed Version: N/A
Secondary Software: LabVIEW Development Systems>>LabVIEW Base Package, LabVIEW Development Systems>>LabVIEW Full Development System, LabVIEW Development Systems>>LabVIEW Professional Development System

Problem:
I understand that the VISA Find Resources function node in LabVIEW can give me an array listing all available VISA resources on my machine, but how do I get an array or list of all open VISA sessions in LabVIEW?

Solution:
Two VI's exist that list all active VISA sessions in LabVIEW. Both are located in the visa.llb stored at the following directory: labview\vi.lib\Utility.
  • Open Sessions.vi - returns an array of all the active VISA sessions on that machine
  • Open VISA Session Monitor.vi - a standalone VI that allows a user to monitor all open VISA sessions on that machine

Note: A text-based equivalent of the Open Sessions.vi does not currently exist, as it is unique to the LabVIEW development environment.



Related Links:
KnowledgeBase 42GHNJAC: Programmatically Retrieving VISA Resource Names in LabVIEW
KnowledgeBase 2XCDFMTL: How do I Find All VISA Instrument Resources Using LabWindows/CVI?

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Report Date: 11/21/2008
Last Updated: 05/06/2009
Document ID: 4RKBJISD

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