I just noticed this post. I know you posted a couple months ago, but I'd like to offer a few suggestions/comments anyway. Do get started with a digital output application, I suggest going to the example finder in LabVIEW. Go to Help>>Find Examples. Navigate to Hardware Input and Output>>DAQmx>>Digital Generation.
I should mention that with your device, the PCI-6014, you don't have any hardware timed digital I/O lines (If you need hardware timed digital lines, consider M Series
). So all digital operations will be software timed, meaning your update rates will be system dependent and at the mercy of the OS. Hope this helps!