Tektronix TDS2024C usb issue

[ForrestGan]

Hi,

    I have a TDS2024C and connected to PC by usb.

    NI Max can detect the device, but when I tried to send command through VISA test panel,  it doesn't work.

    is there any suggestions?

Thanks!

[Albert.Geven]

What did you try and what did you expect to work.

Post a screenshot of the detected system if possible.

[ForrestGan]

Hi Here is the screen shot.

you can see the Ni Max detected the oscilloscope, but can't send commands to it.

[Albert.Geven]

Indeed MAX sees this but MAX only knows when USB is working correctly.

So without hardware to test I only can guess:

I see two USB connectors, I hope you connected to the back 

And I see Signal express is on board shouldn't that be disconnected? Or external computer conected?

[ForrestGan]

Hi, 

   Yes, usb is connected to the back of the scope.

    So is there any setting I need to do?

     When I connected the scope to a computer, I installed TekVISA, not sure if it is necessary or it cause the problem. And I restarted computer too. What else I can do to find the problem?

thanks!

[Albert.Geven]

Tek visa is probably fighting with max.

Please stay as close as possible to ni software.

[Minions · Accepted solution]

For some of these instruments, it prefers the other selection in the Windows Control Panel for USB.  Select the USBTMC which is the USB Test & Measurement Class Device driver.  I have had to use this in the past for some Tektronix instruments.

[ForrestGan]

Hi,

    the instrument was shown as USB Test & Measurement Class Device in the device manager.

    somehow after I disable and enable the device again, now everything works fine.

     I am still using the usb address shown in the NI Max.

Best

[Engr_Hina]

pls send your vi ..how you are communicating to ur instyrument using visa.. or post the snap shots step by step..