Programming instructions

Chapter 2 Installing and Configuring Your Data Acquisition Hardware
LabVIEW Data Acquisition Basics Manual 2-12
© National Instruments Corporation
1. Leave the
Chassis
set to
1
if you have only one chassis. You will use
this number to access the SCXI chassis from your application. If you
have multiple chassis, advance the
Chassis
to configure the next
chassis after you finish configuring the first chassis.
2. Select the appropriate chassis type for your chassis. This activates the
remaining fields on the panel.
3. If you only have one chassis, leave the
Address
field and the address
jumpers on your SCXI chassis set to
0
. If you have additional chassis,
you must select a unique hardware-jumpered address for each chassis
and enter it in the
Address
field.
4. Leave the
Method
set to
Serial
, which means that LabVIEW
communicates with the chassis serially using a DIO port of the plug-in
DAQ device. The
Path
automatically sets itself to the device number
of the appropriate DAQ device when you enter the
Cabled Device
information in step 5b.
5. Enter the configuration for each slot in the chassis. The fields in the
bottom two sections of the window reflect the settings for the selected
Module
number. Refer to your SCXI chassis hardware manual to
determine how the slots in a chassis are numbered. You must set the
following fields for each SCXI module you install:
a.
Module type
—Select the correct module type for the module
installed in the current slot. If the current slot does not have a
module, leave this field set to
None
and advance the
Module
number to the next slot.
b.
Cabled Device
—If the module in the current slot is
directly
cabled
to a DAQ device in your computer, set this field to the
device number of that DAQ device. Leave the
Cabled Device
field
set to
None
if the module in the current slot is not directly cabled
to a DAQ device. If you are operating your modules in multiplexed
mode, you only need to cable one module in each chassis to your
DAQ device. If you are not using multiplexed mode, refer to the
SCXI Operating Modes
section of Chapter 19,
Hardware and
Software Setup for Your SCXI System
, for instructions about
module cabling.