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export data waveform chart problem

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Thanks a lot. Now, I see what is the problem. I did not have DAQmx installed in the original installation and I kept wondering why can't I do something as basic as an analog signal acquistion. That is why I was using Signal Express, which was too basic. I have done it now and so the DAQ assistant is now available under Express --> input --> DAQ Assistant. Thanks a lot for pointing that out.  Also, indeed under Hardware I/O I see daqmx with the examples.

 

 

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Message 21 of 27
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your welcome, and good work for your project! 🙂

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Message 22 of 27
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Thanks. It is now easy to acquire and view signal on a graph. However, I don't see any ready made VI for writing the waveform data to a spreadsheet (both the X and Y values). Do you know of any example? 

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Message 23 of 27
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I think the best way to save data is the TDMS file format. If you look for examples, you will see many. As much as I know, direct saving into Excel is not that straigthforward, so better to use TDMS file format. Try to find examples, something like "Aquire and save data to TDMS file". Beside, download and install the TDMS plugin for Excel, so you can directly export your tdms data into Excel spreedsheet file:

http://zone.ni.com/devzone/cda/epd/p/id/2944

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Message 24 of 27
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Thanks Blokk! You have been very helpful. The 'TDMS Logging - Cont Log and Read Data.VI' might work. Will check it out!

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Blokk....Another quick question.

How do I change the terminal configuration to RSE for this example VI: 'TDMS Logging - Cont Log and Read Data.VI' 

It defaults to 'differential' every time I run the VI. Thanks a ton. 

 

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Message 26 of 27
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Nevermind. Figured it out. Added a control to the daqmx channel vi to select the input terminal configuration. Thanks.   

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