AI acquire waveform. vi update rate

[poli]

Hello,

I would like to increase the update rate ( which governs how many samples are acquired per second) for the attached vi- AI Acquire Waveform(waveform).vi.

This vi is a built in vi obtainable from Analog Input palette under Measurement I/O.

The update rate preset is 1000 samples per second, i want it to be 10,000 per second.

If i type it manually, it doesnt stay and reverts back to 1000.

 I am using LABVIEW 8.6 on Windows XP machine

Thank you very much and Regards

poli

[Dennis_Knutson · Accepted solution]

What do you mean it doesn't stay? It stays to whatever you set it to. Do you mean that it doesn't stay when it closes? If that's the case, of course not. You would have to right click on it and select Data Operations>Make Current Value Default and then save it. This however, is not something you should do anyway. Don't make changes to a shipping VI. You would place this in your main VI anyway and pass parameters with controls or constants.

And why are you using the obsolete traditional DAQ driver?

[RavensFan]

Which data acquisition device are you using?  Is there a reason why you are using the traditional DAQ drivers rather than the DAQmx drivers?

What do you mean that if you "type it manually, it reverts back to 1000"?  Are you talking about the control itself on your front panel?  When are you typing it manually, before the VI starts or while it is running?  Are you using this as a subVI within another VI?  Right now, if you click the Run button, it will run once then stop.

[Coq_Rouge]

Hi Poli

Have you looked at the the daq examples. Labview is shipped with a lot of examples. Also are you running this by using the continuous run button? That button is for debugging only, and it is a no-no to use it for other purposes

If you are new to Labview perhaps some of the online basic lessons will do you good.