multi channel continuous DAQ acquisition

[delts74]

Complete newbie question here. First time using Labview so I apologize for asking this question: Is it possible to have multi channel contiuous acquisition? If so, does this have to go through a circular buffer to prevent tying up all the computer memory? Can you vary the scan and read rates for each channel? Last question: If it is possible to do all of the above....how do you do it? I've attached a .pdf file with screen shots of my front panel and block diagram....it's extremely crude just trying to get some basic concepts down. Also if anyone can recommend some good books on actually doing the wiring and conditions of the various elements, I'd be extremely grateful. Currently I have "Labview for Everyone".

[Laura F.]

Hello,

It is possible to have a multi channel continuous acquisition and it does use a circular buffer. Please check out the Continuous Waveform Acquisition Tutorial for more information about how this is done. With our DAQ devices you can use different sampling frequencies as long as they have a common divisor and the sampling rates remain within the device specifications. There is an example of that called Multi-Rate Continuous Analog Input.

The example finder is always a useful place to look for ideas on how to make a VI. In LabVIEW, go to Help->Find Examples and you will open up a browser that will allow you to look through many examples. You can also check out the LabVIEW Zone Learning Center where you can find a book listing under the fundamentals section.

Hope this helps!
Laura F.