hlseck,
RTOS is not NEEDED for this application, but in general
will provide a much more consistent performance that Windows will.
It's not impossible to achieve these rates under Windows, however,
making them reliable is a more difficult task. Windows is not
deterministic, therefore other processes can interrupt your loop and it
may not always run at 3khz. Since the RTOS doesn't have a user
interface or any of the other unpredictable elements of Windows, it is
able to guarantee that your code will execute on time.
You can
always try your application in regular LabVIEW, and if the jitter of
Windows is unacceptable, then it is relatively trivial to port it over
to RT.
Hope this helps.
--Paul Mandeltort
Automotive and Industrial Communications Product Marketing
