"I have the 7831R FPGA card too, but I have specific requirments for my current application. So i have to use the USB DAQ and get the best measurement results that are possible with it."
You will need to use the 7831R if your requirements are still measureing a PWM signal from 8 different channels at the same time.
Again, this is not possible using a M-Series DAQ card.
Christian
