QUOTE (jgcode @ Apr 4 2009, 12:20 PM)
JG,
My cDAQ knowledge is very limited, so it is possible that what NI support says is correct.
Till now, I was of the thinking that the cDAQ chassis provides all timing (clocks) to IO modules. Hence I assumed that the ai/SampleClock or timebase is an internal source and not an external source.
One thing I am not sure is, when we specify ai/sampleclock as the clock source, how will it get routed to the 9411 module? There is a direct route between sample clock and mod5 PFI lines, but will NI-DAQ do the routing or do you have to route the clock to a PFI line and then use that PFI line as clock for the position task?