Hi,
Are you going to use LabView to read your bit data? If so, I recommend checking the LabVIEW shipped example " Read Dig Chan.vi" . You can find this example in LabVIEW help " Find examples " . It's under Hardware Input and Output >> DAQmx >> Digital Measurements.
You might also want to checl this <a href="http://forums.ni.com/ni/board/message?board.id=170&message.id=43229&requireLogin=False" target="_blank">discussion forum </a>.