User`s guide

PCIS-DASK Application Hints • 59
5.4.5 Multiple-buffered Asynchronous Continuous Digital output
programming Scheme
This section described the function flow typical of multi-buffered
asynchronous digital output operation. While performing
continuous DO operation, the DO configuration function has to be
called at the beginning of your application. For asynchronous DO,
the SyncMode argument in continuous DO functions has to be
set as ASYNCH_OP.