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Online voltage measurement with DAQNavi assistant


I have created a .vi file to plot the I-V curve for a resistor. I'm using a DAQNavi assistant and the conversion rate is acquired from the front panel as an input. I also get the seconds to run the program as input and multiply it to conversion rate and give it to number of samples of DAQNavi to ensure the program ends after running for specific amount of time. The output is then given to a Waveform Graph to plot the curve. My problem is that I can only see the I-V curve after the program stops running. I want to be able to see the curve as it gets every data, like monitor the curve. I have searched a lot on the internet and I understand that I need a loop for that but I have not been able to understand how to build the loop so that it does exactly what I want.

I appreciate your help in advance.

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A picture is worth a thousand words, for LV folks, a bunch of VIs are worth a thousand pictures.


Please share any VIs that you developed. If you're new to LabVIEW and want to learn the basics, please use the training resources in LabVIEW board as shown below,



Semiconductor Validation & Production Test
Soliton Technologies
LabVIEW + TestStand + TestStand Semiconductor Module (2013 - 2020)
NI STS for Mixed signal and RF
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