Programming instructions

© National Instruments Corporation A-1 LabVIEW Data Acquisition Basics Manual
A
LabVIEW Data Acquisition
Common Questions
This appendix lists answers to questions frequently asked by
LabVIEW users.
Where is the best place to get up to speed quickly with data acquisition
and LabVIEW?
Read the
LabVIEW Data Acquisition Basics Manual
and look at the
run_me.llb
examples, in
labview\examples\daq\run_me.llb
,
included with the package. In Windows, run the DAQ Channel Wizard and
the DAQ Solution Wizard.
What is the easiest way to address my AMUX-64T board with my
MIO board?
Set the number of AMUX boards used in the NI-DAQ Configuration utility
(
nidaqconf.exe
on Windows or
NI-DAQ
control panel on Macintosh).
Then in the channel string inputs specify the onboard channel. For example,
with one AMUX-64T board, the channel string
0:1
will acquire data from
AMUX channels 0 through 7, and so on.
What are the advantages/disadvantages of reading AI Read’s backlog
rather than a fixed amount of data?
Reading the backlog is guaranteed not to cause a synchronous wait for the
data to arrive. However, it adds more delay until the data is processed
(because the data was available on the last call) and it can require constant
reallocation or size adjustments of the data acquisition read buffer in
LabVIEW.
What is the easiest way to verify that my board works and is acquiring
data from my signals?
Run one of the examples in the
labview\examples\daq
folder or run the
test panel for your board in the NI-DAQ Configuration utility.