Programming instructions

Chapter 14 Simultaneous Buffered Waveform Acquisition and Generation
© National Instruments Corporation 14-3 LabVIEW Data Acquisition Basics Manual
Once you call the AO Start and AI Start VIs, the While Loop executes.
Inside the While Loop, the AI Read VI returns acquired data from the
analog input buffer. There is not a call to the AO Write VI inside the While
Loop because it is not needed if the same data from the first AO Write VI
is regenerated continuously. If you want to generate new data each time the
While Loop iterates, you could add an AO Write VI inside the While Loop.
The While Loop stops when an error occurs or you press the
Stop
button.
Your DAQ device resources are cleared by calling the AI Clear and
AO Clear VIs after the loop stops.
For a complete description, instructions, and I/O connections for this VI,
select
Windows»Show VI Info…
from the front panel of the VI.
Hardware Triggered
Figure 14-2 shows the diagram of the Simul AI/AO Buffered Trigger
(E-series MIO) VI located in
labview\examples\daq\anlog_io\
anlog_io.llb
.
Figure 14-2.
Simultaneous Input/Output Using the
Simul AI/AO Buffered Trigger (E-series MIO) VI