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06-18-2019 05:19 PM

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I need to use the Basic Average DC-RMS for N Chan to process my signal. However I have the base version of labview and this function is not available. I am looking for an option of a subVI to do the same but using functions available in base version of Labview.

Any help would be highly appreciated.

06-18-2019 07:59 PM

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What do you think "Basic Averaged DC-RMS for N Chan" does? Sounds like it has N Channels of data (maybe "rows in an array" where there are a certain number of samples/row (maybe individual elements of these arrays). I wonder what "Averaged DC" might mean? And what does "RMS" stand for? If I knew that, could I compute it?

Have you ever taken an Engineering course where you talked about signals, sampled at equally-spaced intervals and giving you an array of values? If you don't know these very common terms, you could "look it up" (try the Web).

Bob Schor

06-21-2019 04:01 PM

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It receives a DC Voltage signal and the output is the RMS (root mean square) voltage value.

I attached my VI, i need to change the DC to RMS Voltage box to something I can handle with the base version og labview.

Thanks

06-21-2019 07:41 PM

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@jhoyos wrote:

I attached my VI, i need to change the DC to RMS Voltage box to something I can handle with the base version og labview.

It is really too bad that NI puts the Dreaded DAQ Assistant, which uses the confusing "non-LabVIEW" Dynamic Data Wire, in such a prominent place that tricks LabVIEW neophytes into using them. I made one change -- I changed the Dynamic Data Wire to a much-easier DAQmx-like 1D Array of Waveforms. With this, a single For loop, and two Index Array functions (only one of which I put in this Snippet), you can get the 7 DC indicators (shown) and the 7 RMS indicators (left as a trivial exercise for the Reader). I delete the rest of your code from this Snippet ...

Bob Schor