device recognized by VISA, seen in Labview but not seen in MAX

[nevil]

I am using Tektronix DPO7104.

When I generate a control to initialize communication with the equipment, I see the device id in the drop-down list in Labview. I also have the "Find VISA resource" vi find the device address for me. I am not able to locate that equipment in MAX for some reason.

I have the default TekVISA installed on the machine, but not running in the background while running MAX. (I am not sure if I had to mention this to add confusion)

Is there a reason why I am not able to find the equipment in MAX?

I have attached the screenshot of NI Spy for review. The equipment I am concerned about has address of GPIB8::1::INSTR

I would appreciate any help I recieve on this. I have come across a situation like this for the first time.

Thanks,

Nevil

[nevil]

I forgot the NI Spy screen capture

[Justin_E]

Hey nevil,

What version of TekVISA do you have? Do you also have the NI-VISA driver installed? I believe that if you only have the TekVISA driver installed, then you won't be able to use MAX to communicate/access the instrument. Both NI-VISA and TekVISA are interoperable, with differences in configuration and troubleshooting utilities. I'd suggest possibly uninstalling TekVISA and (re)installing NI-VISA to try and see your instrument in MAX.

[nevil]

Hi Justin,

I have 3.3.0.14 version of TekVISA installed. I will try doing what you have suggested, but the funny part is I am facing this problem on only one machine. On the others I see the scope listed under "Unknown Devices" in MAX.

The version of NI VISA I have installed is 3.4.0.49152

Thanks,

Nevil

[Justin_E]

Hey Nevil,

Are there any differences in the setups of your machines? Is the machine that has the problem set up the exact same (as far as drivers and NI/Tektronix software goes) as the machine that doesn't have this issue? I would also suggest upgrading your NI-VISA driver to the latest version, which is version 4.5. The NI-VISA drivers can be found from this page : http://joule.ni.com/nidu/cds/fn/p/sn/n23:1640/lang/en 

[nevil]

Hi Justin,

Thanks for your feedback. The upgrade of visa version did it. I see the scope listed as "Unknown Device" now.

Thanks,

Nevil

[Justin_E]

Hey Nevil,

Glad to hear the upgrade fixed the problem!