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From: Ankit Desai on 20 Feb 2010 15:08
"Daniel Clarke" <clarke.daniels(a)gmail.com> wrote in message <hf6897$36u$1(a)fred.mathworks.com>...
> Hi,
> I wonder if somebody may be able to help.
>
> I am trying to use the instrument control toolbox to remotely access a spectrum analyzer using a the 'visa' command.
>
> I have installed the NI VISA drivers and am able to use their configuration tool to communicate with the Spec An.
>
> However, when I try to use the command
> >> 'visa('ni'' , 'resource')
> it doesn't seem to work. The problem would appear to be that MATLAB cannot communicate with the NI visa dlls as when I use the command
> >> instrwhinfo('visa')
> the InstalledAdaptors returns a 1x0 cell array (i.e. it doesnt find anything).
>
> I checked the adaptors directory and it does contain the mwnivisa.dll file (along with the mwnigpib.dll file, which instrwhinfo does find).
>
> Does anyone have any ideas?
>
> Thanks in advance.
> Dan

Hi Dan,

I would recommend contacting technical support with this issue.
You can reach them at: 508-647-7000 (option 2).

-Ankit
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