FWIW, the M-series boards are really nice, especially since DAQmx 8.0 began supporting digital change detection. The 6220 should handle regenerative digital output with an external clock. Good luck convincing the powers that be...
-Kevin P.
ALERT! LabVIEW's subscription-only policy came to an end (finally!). Unfortunately, pricing favors the captured and committed over new adopters -- so tread carefully.
