How to transfer data from waveform for a sub vi

I'm seeing plots in a Subvi when I want. In my test, the waveform in the main VI display several plots of channels as I expected, but the Subvi shows only a single parcel. Joint programme.

I can simply convert the dynamic data in table 2D Digital to display several plots, but I will loss the timestamps I really want to show in the plot than in the main program.

Thank you

hrwang wrote:

Thank you. I tried to follow your instructions.

In fact you have not.  You did not create an indicator of waveform bays to copy onto the Subvi bays of waveform control.  See attached Subvi that I modified.

However, it still shows a plot in the sub vi and plot begins time 0. The new program is attached.

This is because you have created a table 1 d double which means only 1 field and no data delay

I think that the 2D table are necessary to have several plots.

No. a table 1 d of waveforms can be used for several plots.

I want to run the program for the day, so it is convenient if I see the date/time in the x axile, like the one in the main program, instead of from the time 0. Dynamics of the data type is complicated and I don't want to deal with its structure, that's why I use a waveform as a control chart, hoping the information all dynamic data is transferred to the Subvi plot properly. Apparently, it did not work.

If you don't want to use dynamic data, then do not use the DAQ assistant.  The DAQ assistant, is what gives you dynamic data.  I see that you did to a conversion of DDT in a table 1 d of waveforms, which is good.  Now you just send this table 1 d waveform to the Subvi.  Because you used a table 1 d of doubles in the Subvi, you have a conversion point.

All solutions?

Thanks again.

Tags: NI Software

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