Programming instructions

Chapter 3 Basic LabVIEW Data Acquisition Concepts
LabVIEW Data Acquisition Basics Manual 3-2
© National Instruments Corporation
VI libraries (designated by the
.llb
file extension) and directories located
in the
daq
directory.
anlogin
Folder containing the
anlogin.llb
VIs that
perform analog input and the
strmdsk.llb
VIs
that can write or stream the acquired data to disk.
anlogout
Folder containing the
anlogout.llb
VIs that
generate single values or multiple values
(waveforms) to output through analog channels.
anlog_io
Folder containing the
anlog_io.llb
VIs for
analog I/O control loops and simultaneous analog
input and output.
counter
Folder containing the
DAQ-STC.llb
,
Am9513.llb
, and
8253.llb
libraries of VIs that
count the rising and falling edges of TTL signals,
generate TTL pulses, and measure the frequency
and period of TTL signals.
digital
Folder containing the
digio.llb
VIs that
perform immediate digital I/O and digital
handshaking.
scxi
Folder containing the
scxi_ai.llb
,
scxi_ao.llb
, and
scxi_dig.llb
VIs, for use
with SCXI modules.
solution
Folder containing the
benchtop.llb
,
control.llb
,
datalog.llb
, and
transduc.llb
VIs, a variety of ready-to-run
application VIs.
run_me.llb
Library containing the VIs that perform basic
operations concerning analog I/O, digital I/O, and
counters.
Each chapter in this manual teaches the basic concepts behind several of the
DAQ examples. For a brief description of any example, open the example
VI and choose
Windows»Show VI Info
for a text description of the
example. You also can choose
Help»Show Help
to open the
Help
window.
When the
Help
window is open, you can put your cursor over any front
panel or block diagram item and see a description of that item in the
window.