How to get continuous data from TDS3034B

[ldw636]

I connected One Oscilloscope (TDS3034B) with my laptop by a router, and the connection is ok, computer can read data from TDS3034B. But the problem is the driver given by NI can not get continuous data from oscilliscope, just like one capture from oscilloscope and the waveform graph also can not show continuous data graph just like oscilloscope's screen. Shall I revise the Initialize.vi or other files? Anybody who can help me please? Many thanks.

The attachement is the driver file from NI, or we can get it from

http://sine.ni.com/apps/we/niid_web_display.drv_results

[Dennis_Knutson]

Posting the driver was nice but it would have helped even more for you to post your program that uses it. What you should have is the read waveform in a loop all by itself. Even then, you won't be able to get data from the scope as fast as it get it locally. The read waveform sends an initiate command, waits for the capture to be complete, and then does a transfer. That all takes a finite amount of time for the scope to process, move the waveform to the transmit buffer, and then actually transfer the waveform. You should look in the manual to what the spec is for an ethernet data transfer but I guarantee it will be slower than the scope in free run mode and updating it's own screen. There's no limitation with the driver - there's a limitation with the scope. Much higher transfer rates are possible with a pc-based scope.

[salim92]

Hello,

I work on labview 7.1 and I have to communicate with the same scope. so If you can help me by an example

or could you explain me how I can connect the exit of the visa read to the waveform in order to visualize the signal

regards

[Chris G in AE]

Howdy salim92,

From what I understand you are looking for a basic tutorial on how to get data from your oscilloscope into LabVIEW.  You should definitely read the How to Use an Instrument Driver in LabVIEW Tutorial as well as the Instrument Control in LabVIEW Tutorial.  These should get you started!