i'm attempting to output 2 channels from an AT-MIO-16E-4 board using

[andy.mcleod@unh.edu]

I am simultaneously running 2 seperate VI's that call AO write vi which subsequently force an quit on both VI's. Is there a known issue here?

[A_Ryan]

andy.mcleod,

Depending upon the overall goal of your application, you can only have one hardware times AO Task running at time.  Simultaneous Analog Output Tasks on the Same Device is a further expounds upon this idea.

 NI-DAQmx: Multiple Analog Output Tasks Simultaneously is an example that allows you to have multiple analog outputs.

I have some additional questions for you:

1.  Can you please include a screenshot of the error?

2.  Can you please include a screenshot of your code?

3.  What hardware are you using?