Mixing DI & RSE analog inputs on USB 6259

[danieleaston]

Is it possible to set up some channels as DI analog input channels and some as RSE analogue input channels on the M Series USB 6259?

I am setting up a system which will require about 20-24 analog inputs and was wondering if it is possible to set up, say 10 DI channels for data I need most accurately and 10-12 RSE channels for data which can be acquired less accurately.  I need to use the USB 6259 for its high sampling rate and because it needs to be located separately away from the host PC.

I have successfully done this with a USB 6009 DAQ box but was wondering if anyone had any experience with the USB 6259.

[devchander]

You sure can!

Since you have done it with a 6009, I do not think you need a demo on how to do it.

Any further doubts, do ask

Message Edited by devchander on 11-15-2006 04:44 AM

Message Edited by devchander on 11-15-2006 04:44 AM

[Tom_W_[DE]]

Hi Daniel-

To add to Dev's post- the method for creating channels with different terminal configurations in a single task is the same.  You only need to call the appropriate DAQmxCreateVirtualChannel function multiple times with the appropriate terminal configurations indicated for your task.

One thing to note as you move to the new USB M Series device family- on the USB-600X devices the differential channels are mapped by default to ai[n] and ai[n+4], but for the USB-625X series (and most other MIO DAQ devices) this mapping is ai[n] and ai[n+8].  Otherwise, the programming methods are identical.

Hopefully this helps-

[danieleaston]

Thank you both for reassuring me that this is possible.

Daniel