Multiple channels definitions for AI

Question

All examples for analog input use one channel only.  I would like to see and example using multiple channel inputs.

Answer 1

Hi rlbrehm,
If you have already created Global Virtual Channels in MAX, you can use the DAQmx Create Task vi to create the task from those in LabVIEW.
If you have a Task configured in MAX, you may use it in LabVIEW as follows:
Using a DAQmx Task in LabVIEW
If you want to define the channels in LabVIEW with multiple characteristics, you can also use the DAQmx Create Channel multiple times in your code to define channels with different characteristics (scales, ranges, etc.).  The following code shows how this can be done, although a more elegant solution would use an array of channel configurations in conjunction with a for loop.
DAQmx Acquire with Multiple Channel Input Ranges
The one thing to take away from this is that there are multiple ways to define your task and the parameters associated with each channel--any of the above methods should be able to produce the same result so it's up to you how you want to define your task and channels.  I hope this is helpful.
-John
John Passiak