Instrument Control (GPIB, Serial, VISA, IVI)

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remote access using both RDA VISA

I have a PC that is connected to some GPIB instrumentation and that also has a DAQ card. I would like to use this machine remotely-- virtual channels as well as VISA resources.

I can remotely access the virtual channels when I run RDA. I can also remotely access VISA resources if I use the VISA server.

However, if I try to run BOTH the VISA server and RDA at the same time, I either cannot use the virtual channels remotely (error -10340) or I cannot use the VISA resources remotely (depending on the order that I configure remote access-- visa first or RDA first).

I am using ni-daq 6.9.3 and visa 2.6 on both machines.

Is this a bug?
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Angelo:

Yep, it's a bug. We inadvertently used the same port number. It'll be fixed in NI-VISA 3.0. There's no real workaround with the shipping version (at the API level) if you need both running at the same time.

However, if you're using LabVIEW, you might want to consider using VI server to do your remoting at a higher level.

Dan Mondrik
Senior Software Engineer, NI-VISA
National Instruments
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