Programming instructions

Chapter 2 Installing and Configuring Your Data Acquisition Hardware
© National Instruments Corporation 2-13 LabVIEW Data Acquisition Basics Manual
c.
Operating Mode
—The system defaults to the multiplexed
operating mode, which is recommended for almost all
SCXI applications. The operating modes available for each
SCXI module type are described in the
SCXI Operating Modes
section of Chapter 19,
Hardware and Software Setup for Your
SCXI System
.
If the module is an analog input module, enter the gain and filter
settings for each channel in the bottom section of the window. The
system disables the
Channel
control for any modules that use
only one gain and filter setting for the entire module.
Configuring Your Channels in NI-DAQ 5.
x
, 6.0
Once you install and configure your hardware, you can configure your
channels. LabVIEW DAQ software includes a channel configuration
application, the DAQ Channel Wizard, you can use to configure the analog
and digital channels on your DAQ device—DAQ plug-in boards,
stand-alone DAQ products, or SCXI modules. In NI-DAQ 5.
x
only analog
input channels can be configured. The DAQ Channel Wizard helps you
define the physical quantities you are measuring or generating on each
DAQ Hardware channel by querying for information about the physical
quantity being measured, the sensor or actuator being used, and the
associated DAQ hardware. As you configure channels in the DAQ Channel
Wizard, you give each channel configuration a unique name which is used
when addressing your channels in LabVIEW. The channel configurations
you define are saved in a file that instructs the NI-DAQ Driver how to scale
and process each DAQ channel by its name. You can simplify the
programming required to measure your signal by using the DAQ Channel
Wizard to configure your channels.
Refer to the DAQ Channel Wizard online help file for specific instructions
on how to use the DAQ Channel Wizard. If you use Windows 3.
x
, you can
find the help file in the Program Group
LabVIEW
. If you use Windows 95
or NT 4.0, you can find the help file in
Start»Programs»LabVIEW»
DAQ Channel Wizard Help
. Macintosh users can find the help file in the
NI-DAQ
folder. You can also launch the help file on any platform by
clicking the
Help
button in the DAQ Channel Wizard.