National Instruments SCXI -1122 - Manual (Page 15)

Introduction Chapter 1
SCXI-1122 User Manual 1-4 © National Instruments Corporation
Register-Level Programming
The final option for programming any National Instruments DAQ hardware is to write register-
level software. Writing register-level programming software can be very time consuming and
inefficient, and is not recommended for most users. The only users who should consider writing
register-level software should meet at least one of the following criteria:
• National Instruments does not support your operating system or programming language.
• You are an experienced register-level programmer who is more comfortable writing your
own register-level software.
Always consider using NI-DAQ, LabVIEW, or LabWindows to program your National
Instruments DAQ hardware. Using the NI-DAQ, LabVIEW, or LabWindows software is easier
than and as flexible as register-level programming, and can save you weeks of development time.
The SCXI-1122 User Manual and your software manuals contain complete instructions for
programming your DAQ board with NI-DAQ, LabVIEW, or LabWindows. If you are using
NI-DAQ, LabVIEW, or LabWindows to control your board, you should not need the register-
level programmer manual. The SCXI-1122 Register-Level Programmer Manual contains low-
level programming details, such as register maps, bit descriptions, and register programming
hints, that you will need only for register-level programming. Some hardware user manuals
include register map descriptions and register programming hints. If your manual does not
contain a register map description and you want to obtain the register-level programmer manual,
please fill out the Register-Level Programmer Manual Request Form at the end of this manual
and send it to National Instruments.
Optional Equipment
Equipment Part Number
SCXI-1322 front terminal block 776573-22
SCXI-1340 cable assembly 776574-40
SCXI-1341 Lab-NB/Lab-PC/Lab-PC+ cable assembly 776574-41
SCXI-1342 PC-LPM-16 cable assembly 776574-42
SCXI-1343 rear screw terminal adapter 776574-43
SCXI-1344 Lab-LC cable assembly 776574-44
SCXI-1345 shielded cable with adapter, 1 m
2 m
5 m
10 m 776574-451
776574-452
776574-455
776574-450
SCXI-1350 multichassis adapter 776575-50
SCXI process-current resistor kit 1 776582-01
Standard ribbon cable, 0.5 m
1.0 m
180524-05
180524-10
1 Resistor kit needed to perform current measurements. (See pages 2-4)
Refer to Chapter 3, Signal Connections, and to your cable installation guide for additional
information on cabling, connectors, and adapters.