Two data into "Write To Measurement" Function

[KevWhat]

Hi,

I like to capture Two signal data from USB-6366, and record as .csv. Now I implement "Write To Measurement" Function. But this function have only single signal. So I can not logged two data simultaneously on single log file.

Is there any method exist ? If so, please instruct how to implement it.

Best,
Kazutaka Watanabe

[RavensFan]

What do you mean the Write to Measurement has only one signal.

Attach your VI so we can see what you've done.

[KevWhat]

Hi,

I just want to capture two signals that input signal on Filter, and output from filter.
In this case, how to capture and output as single log file ?

Best,

[GerdW · Accepted solution]

Hi Kev,

as you seem to be a friend of all those ExpressVIs (unlike me) you should have noticed that MergeSignals ExpressVI. Using this ExpressVI lets you merge several signals into just one DDT wire…

Your VI is missing a loop: do you really read just one millisecond worth of data?

[RavensFan]

I see another problem with your VI.  It only runs once.  You grab a 1/10th second worth of data, process it, write it out and the VI ends.  Is that really what you want to do?

Please don't tell me you are running this using the Run Continuously button.  That is only meant for helping to debug subVI's.  It seems your VI should have a while loop around it with a stop button so that when you run it using the Run button, it will run until you stop the VI via the stop button you added to the front panel (and not the Abort button on the toolbar.)

[KevWhat]

Your expectation is what I like to achieve on this VI. I misunderstood how to use of "Run" and "Stop" button. I have to use while loop to make "Continuous Capturing".

I will do that.

Thanks,

[RavensFan]

Put a while loop around the code you want to run continuously.

I would recommend looking at the online LabVIEW tutorials
LabVIEW Introduction Course - Three Hours
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