Hi Kevin,
The last response was a bit misleading, because this limitation is not
a driver limitation - it is actually a hardware limitation. When
connecting the SCXI-1520 modules to the DAQ board in parallel mode
using the SCXI-1349 adapters, the simultaneous sample and hold signal
from the DAQ board is not routed to the second connector of the
M-series board. So, simultaneous sample and hold is not available to
any SCXI module which is connected to the second connector of the
m-series board.
If you do not require the simultaneous sample and hold functionality,
there is an <b>unsupported</b> work-around. When you create
a task to acquire data, you can turn off the simultaneous sample and
hold property for your acquisition, and you will be able to acquire
from the second SCXI-1520 in parallel mode.
How many PXI-6254 boards are you planning on using with the SCXI-1520s?
Do you already own the DAQ device and the SCXI modules, or is the a
pre-sales question?
Regards,
Logan K