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How to display two waveforms on LabJack vi's?

Hi

      I have connected a load cell to a LabJack U3, displayed it using U3 Streaming Mode Example Full.vi which displays the outputs of the terminals FI00, FI01, FI02, FI03 of the LabJack U3 on a waveform graph. I extracted the output of the load cell (which was coming through FI00) through signal select.vi.

I made some changes to the program so that this output is displayed on a waveform chart along with a DC line generated through Waveform Generate.vi. But since both the waveforms have a time lag between them, the DC line was not being displayed. So I changed the time to absolute time. This is working when I disable the DC line display, but when I enable it, the waveform chart displays the number of samples (0-999) instead of the absolute time, with the result I can see only the output of the LabJack without the DC line.

How do I get around this problem? I want the DC line to be there so that it works as a reference line for how much force to apply on the load cell. I would highly appreciate it if someone could help me around with this as soon as possible.

 

Thank you.  

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Hey there,

I went to the labjack website and downloaded their LV9+ examples and tried finding the program you were using but couldn't find it.

Would you mind posting your VI or a screenshot so we can get a better idea of what you are looking at?

Thank you,

Jacob R.

 

 

 

Jacob R. | Applications Engineer | National Instruments

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