Very often, reading the Help....really helps:
Transitions the task
to the running state
to begin the measurement or generation. Using
this VI is required for some applications and is optional for others.
If you do not use this VI, a measurement task starts automatically
when the DAQmx Read VI runs. The
autostart input of the DAQmx Write
VI determines if a generation task starts automatically when the DAQmx Write VI
runs.
If you do not use the DAQmx Start Task VI and the DAQmx Stop Task VI when you use the DAQmx Read VI or the
DAQmx Write VI multiple times, such as in a loop, the task starts and stops
repeatedly. Starting and stopping a task repeatedly reduces the performance of
the application.
- out of the LV Help
Christian
