Display longer plot history

[ecb1123]

Hello,

I have a waveforn plot to display the data on our DAQ system. However, it only shows data from the last 10 seconds or so. How can I change it to show, say, all the data from the last hour?

I've tried using property nodes and altering the chart history length, but that doesn't seem to help.

Thanks for your advice!
Cheers,

Elizabeth

[RavensFan]

Post your VI so we can see what you are doing.

How much data are we talking about?  How many samples per second are you taking?

[aputman]

Try X-Scale -> Range -> Maximum (or minimum...depending on your requirements).

[altenbach · Accepted solution]

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ecb1123 wrote:

I've tried using property nodes and altering the chart history length, but that doesn't seem to help.

Thanks for your advice!

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You change the chart history by right-clicking the chart, not via property nodes (you cannot do it a run time). Of course the total number of seconds shown depends on the sampling rate and the history lenght, but that's simple math. Did you do the math?

After that, you also need to change the x scaling. As a quick test, change it to autoscale.