GPIB class device is ambiguous

Hello,
I am using Visual Basic.Net to program a PXI system and trying to talk to GPIB instruments using the code, but when I dimension the variable as the Class Device, which contains the IEEE-4882 functionality, I get an error. The statement, taken from one of the .NET examples, reads "Private GPIB Device as Device". The error reads - 'Device' is ambiguous, imported from the namespaces or types 'NationalInstruments.NI4882, NationalInstruments.DAQmx'.
If I remove the DAQmx information (Imports NationalInstruments.DAQmx), then the error goes away. Also, it seems I can communicate with my GPIB instruments when I go into MAX under the GPIB information. I can query the instruments under "Communicate with Instruments" and they return the proper information.
Is there something that I am missing? Any help would be appreciated.
Thanks,
Mike

Hi Mike,
It seems that both DAQmx and NI 488.2 define something as a device, and they don't agree on that definition. The best practice would probably be to have sepearte assemblies run the DAQmx and NI 488.2 code segments, and avoid having the conflict that way. If there is a particulare reason that you need to have the code segment in the same assembly I am fairly certain if you explicity define the class path by placing.
Global.NationalInstruments.NI4882.Device
Instead of just device that you should be able to run the code. I would recommend just removing Imports NationalInstruments.DAQmx and implementing it in a seperate piece of code. Let me know if this is still causing trouble.
Have a great day,
Michael D
Applications Engineering
National Instruments

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"Eric Clermont" wrote in message
news:[email protected]..
> I have a GPIB-ENET device and I want to configure it with Windows NT4.0 I
> have install everything like it is said in the NI web site and everything
> seems to be fine. When I try to talk to the instruments with Win32
> Interactive Control (IBIC) it works.
>
> I have created an application (In Visual C++ and the ComponentWorks++) to
> communicate with the GPIB device wich work perfecly on Windows 98, and I
> have a VI who also works well with Windows 98 but none of them works on
> Windows NT4.0. When I conn
ect to the GPIB device I use "GPIB0::2::INSTR"
as
> the address of the GPIB instruments and it work with win98, but doesn't
with
> NT.
>
> I can see the GPIB-ENET device but where or how can I see the instruments
> that are pluged in the GPIB-ENET? What are there connection string
> "GPIB0::????"
>
> Is the problem in my application or in the configuration of Windows NT?
> Anybody had this problem?
>
> thanks in advance
>
> [email protected]
>
>

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