What's the fastest way to stream data from one front panel to another?

[bmihura]

I'm writing a LabVIEW application that will use two monitors of different sizes on the same computer. I must stream four channels of 100 Hz data from a main VI to its front panel and to a second front panel on a different monitor.

My options:

1. The easiest way would be to call the second front panel as a subVI, but I don't like that because as a subVI the user could not click buttons or have any input.

2. Another way would be to use a LabVIEW queue to pass data from the main VI to the subVI; that way both panels could have their own UI loop.

3. Is there a better way?

[altenbach]

You could configure the second monitor to duplicate the display. Now you only need a single LabVIEW front panel. 😉

[bmihura]

I forgot to say I need different data on the two monitors. Otherwise that duplicate display would be ideal.

[crossrulz · Accepted solution]

It kind of depends on your data, but I would recommend queues or user events to send your data over to the other VI.

[bmihura]

Thanks, I was thinking queues too. They will be sending waveforms to charts.

[crossrulz]

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@bmihura wrote:

Thanks, I was thinking queues too. They will be sending waveforms to charts.

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Charts?  Or graphs?  Charts keep a history while graphs only show the latest waveform it was given.  If you are using graphs, then use notifiers.

[bmihura]

Charts, that way I only have to transfer the latest data from the main VI to the subVI. If I used graphs I would have to send the entire visible display each time.