plot more than one data set.

[Mully]

Hello All.

A newbe here and am working with version 7.0 .

I want to plot data aquired from pressure and flow transducers.

I managed to get one set of data plotted using the iteration counter as the x input and the data aquired for the Y of an XY graph.

I want to plot both or even more than two sources of data. Im not familiar with array's or bundling so go easy on me here!! LOL

Can someone please explain how to do this and how it works.

Thanks!

Mully

[AlexxxR]

Hi Mully,

just use the context help for wiring the right datatypes to an graph, chart or whatever. This is the first help for wiring multiple plots.

In the example finder, you find a lot of good examples by typing chart, graph, xy, ...! Or whatever you looking for in the search field. Just investigate some time for this examples, the´re very helpful.

Here is a documentlink, which provides more Informations:

https://www.ni.com/docs/en-US/bundle/labview/page/types-of-graphs-and-charts.html

@Last: Perhaps, visit a LabVIEW Basic I - Course in your Country, they´re very good to understand arrays, cluster, structures and many more.

Best Regards

Alex

NI Switzerland

Message Edited by Alex R on 01-13-2006 04:48 PM

[smercurio_fc]

Here's a crude but effective example:

[Mully]

Thanks smercurio but I can not open this file I have labview 7.0.

Mully

[smercurio_fc]

7.0...

[Mully]

Thanks for the .vi

Im not really getting this I guess . All I want to do is take 2 analog signals I have aquired from a Daq 6008 device and plot them on a graph relitive to elapsed time. I've read and looked at the examples but it's dificult for me being new to programming to know exactly what to use component wise to do the job.I have set up the part to aquire the data and am puzzled on how to plot it.

Thanks

Mully

[Dennis_Knutson]

How exactly do you have your DAQmx Read setup. If it's Analog 1D Wfm - NChan 1Samp or  Analog 1D Dbl - NChan 1Samp, all you have to do is wire a waveform chart to the output. Both the chart and graph plot 1 or more waveforms versus time. there is no reason to wire the iteration terminal to anything. The x axis will not reflect the actual acquisition timimg though. This is a function of your iteration rate. If you have set up the DAQmx Read for multiple samples, then all you have to do is wire a normal waveform graph (not xy) to the output. If you are requesting a waveform data type back, then the time will be accurate since this datatype includes both a t0 and a dt. If you are using the DAQ Assistant, the same things apply if you've selected 1 sample or N samples. Use a chart for 1 sample and a regular graph for N samples. If you continue to be confused, post your VI.

[Mully]

Thanks Dennis.

Here is what I have so far, but want to be able to plot and view pressure and flow data as it is sampled.

Tnx

Mully

[Dennis_Knutson]

You just put a chart someplace on the front panel and wire it to the signals output of your DAQ Assistant.