Programming instructions

Chapter 3 Basic LabVIEW Data Acquisition Concepts
© National Instruments Corporation 3-5 LabVIEW Data Acquisition Basics Manual
Refer to your particular type of VI in the
LabVIEW Function and VI
Reference Manual
for specific VI information, or refer to the LabVIEW
Online Reference
, by selecting
Help»Online Reference...
.
Intermediate VIs
The Intermediate VIs have more hardware functionality and efficiency in
developing your application than the Easy VIs. Actually, the Intermediate
VIs contain groups of Advanced VIs, but they use fewer parameters and do
not have some of the more advanced capabilities.
Intermediate VIs give you more control over error-handling than the Easy
VIs. With each VI, you can check for errors or pass the error cluster on to
other VIs.
Note
Most LabVIEW data acquisition examples shown in this manual are based on the
Intermediate VIs. You can find these example VIs in the
examples folder.
Utility VIs
The Utility VIs, found in many of the LabVIEW DAQ palettes, are also
intermediate-level VIs and thus have more hardware functionality and
efficiency in developing your application than the Easy VIs. Read the
previous Intermediate VIs section for more information on how these
operate.
Advanced VIs
The Advanced VIs are the lowest-level interface to the DAQ driver. Very
few applications require the use of the Advanced VIs. Use the Advanced
VIs when the Easy or Intermediate VIs do not have the inputs necessary to
control an unusual DAQ function. Advanced VIs return the greatest
amount of status information from the DAQ driver. This manual primarily
focuses on applications using the Easy or Intermediate VIs.