read data from TDS 1002b using Labview with USB

[Naser1363]

please see the attached file

I think it dont need to convert string to decimal.

[RayFarmer]

You are probably right, the Acquire Waveform VI will probably have extracted the correct data.

I take it there is a continuous waveform visible on the scope screen when you run this VI?

[Naser1363]

Dear Ray Farmer

Thank you again.

Yes, in my oscilloscope screen I can see continuous waveform.

Also, when I use a probe in labview, probe show data correctly in Y-Axsis. (X-Axsis (time) is always=0 but Y-Axsis is changing)

for example

x=0 y=-1.4

after nest sample again

x=0 y=-0.8

again

x=0 y=-.6

etc

[RayFarmer]

well your time valve should be changing, all your point are at zero, hence the reason why you can not see a waveform.

I can not see what's in the Acquire Waveform.vi at the moment because I dont have that driver so I dont know why you dont have a time parameters.

[Naser1363]

Dear Ray Farmer

Thank you again

I use Labview 8.2 and NI VISA 5. I download Tektronix TDS 200 1000 2000 Series Oscilloscope driver from

http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=047216EC20B66FABE0440003BA7CCD...

In this page I read, Application Development Environment (LabVIEW 8.2.1 Upgrade) and NI-VISA 3.2.

Do you think I must to use Labview 8.2.1 and NI VISA 3.2?

Best regards

[Albert.Geven]

Hi

Upgrading VISA is something I would do, no costs and also support for new OS.

Upgrading LabVIEW (with costs) then immediately to 2011 SP that probably comes out in a few weeks.

The step from 8.2 to 2011 is OK, only with vision applications I would try in steps.

[Naser1363]

Dear Albert Geven

Thank you for helping

However, I have another problem.

I use Tektronix TDS 1002b and I want to read data from oscilloscope but any data could not be show in graph in my VI.

Time is constant in my VI and not changing.

Regards

[Naser1363]

Dear Ray Farmer

Please see attachement.

I use waveform output.

Y output has a scaller not vector when I run program. But for waveform gragh Y must be vector.

Best regards

[RayFarmer]

that means you have only acquired one point.

Is it possible to capture the display off the scope with a digital camera showing the waveform you are trying to capture and post it here?

Can you capture the data using NI Spy and post the recorded data file here?

[Naser1363]

Please find the attached file.

A video from Sin wavefrom on osiloscope and capture data using NI I/O trace.

Regards