Thanks again Aaron. Not too critical - I can always go with interposing relays.
Along those same lines, are any of the digital input cards rated for 24VAC inputs? The main digital input page indicates accepted ranges of 5-48VDC sink/source and 5-240VAC, but the individual pages for the input cards available make no reference to VAC.
BTW, all of these questions are related to the same project... can you tell I REALLY want to use Compact FieldPoint?!