how to generate a waveform data table for my data acquisition (GPIB)?

[xiangma]

Hi everyone, I'm new to labview. I have a question, how to obtain waveform data(an I/O file so I can plot it in graphic software), rather than just plot a waveform graph which is pretty easy, but I want a waveform data table, how can I do that? Thank you very much!

Message Edited by pack2themoon on 12-12-2008 10:05 PM

[Cory_K]

Well, I would tell you how to get the data to display on a table however then you will come to another issue.

The issue is that once the data is in a table, you cannot select all the data at once.

You can only select one cell at a time, I'm not sure why, guess it was an oversight of some kind.

There are a few work arounds, and if you are still interested in this aprroach, I will share them with you. 

[xiangma]

thank you. I think I should make it clearer.  What I need is the data form of a "waveform chart"--temperature vs time,  the data input to the chart is just 1D data, but not "waveform data type", how can I obtain the "waveform data type", then I could use the "write to measurement file" vi, which is one way in my mind. But any other ways are welcome.

[Dennis_Knutson]

If you wish to create a waveform data type from a 1D array, use the Build Waveform function. It is realy just a special Bundle by Name. To the Build Waveform, you wire in the 1D array, the dt (time between samples), and the start time of the acquistion.

If you have problems, it would really help if you posted the code that does the acquisition.