I am using a PCI-6071E and DAQmx. I would like to use an analog signal on PFI0 to trigger Analog Comparison Event to be used as the sample clock in DAQ Assistant. Is this possible and if so, how?
You can use your analog signal on a PFI0 line as you are intending. A few pitfalls of doing so are listed in this article. Additionally, this Developer Zone article explains what you are trying to do, and gives and example that you may find helpful. Have a good one!