National Instruments SCXI-1162HV User manual

© Copyright 1994 National Instruments Corporation.
All Rights Reserved.
SCXI-1162HV
User Manual
32-Channel Isolated AC/DC Digital Input Module
August 1994 Edition
Part Number 320790A-01

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Limited Warranty
The SCXI-1162HV is warranted against defects in materials and workmanship for a period of one year from the date
of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or
replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the
outside of the package before any equipment will be accepted for warranty work. National Instruments will pay the
shipping costs of returning to the owner parts which are covered by warranty.
National Instruments believes that the information in this manual is accurate. The document has been carefully
reviewed for technical accuracy. In the event that technical or typographical errors exist, National Instruments
reserves the right to make changes to subsequent editions of this document without prior notice to holders of this
edition. The reader should consult National Instruments if errors are suspected. In no event shall National
Instruments be liable for any damages arising out of or related to this document or the information contained in it.
EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED,
AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. CUSTOMER'S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART
OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER.
NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS,
USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY
THEREOF. This limitation of the liability of National Instruments will apply regardless of the form of action,
whether in contract or tort, including negligence. Any action against National Instruments must be brought within
one year after the cause of action accrues. National Instruments shall not be liable for any delay in performance due
to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects,
malfunctions, or service failures caused by owner's failure to follow the National Instruments installation, operation,
or maintenance instructions; owner's modification of the product; owner's abuse, misuse, or negligent acts; and
power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control.
Copyright
Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or
mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole
or in part, without the prior written consent of National Instruments Corporation.
Trademarks
LabVIEW®, NI-DAQ®, and RTSI®are trademarks of National Instruments Corporation.
Product and company names listed are trademarks or trade names of their respective companies.

Warning Regarding Medical and Clinical Use
of National Instruments Products
National Instruments products are not designed with components and testing intended to ensure a level of reliability
suitable for use in treatment and diagnosis of humans. Applications of National Instruments products involving
medical or clinical treatment can create a potential for accidental injury caused by product failure, or by errors on
the part of the user or application designer. Any use or application of National Instruments products for or involving
medical or clinical treatment must be performed by properly trained and qualified medical personnel, and all
traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation to prevent
serious injury or death should always continue to be used when National Instruments products are being used.
National Instruments products are NOT intended to be a substitute for any form of established process, procedure, or
equipment used to monitor or safeguard human health and safety in medical or clinical treatment.

© National Instruments Corporation v SCXI-1162HV User Manual
Contents
About This Manual............................................................................................................vii
Organization of This Manual........................................................................................vii
Conventions Used in This Manual................................................................................vii
The National Instruments Documentation Set..............................................................ix
Related Documentation.................................................................................................ix
Customer Communication ............................................................................................x
Chapter 1
Introduction.........................................................................................................................1-1
About the SCXI-1162HV..............................................................................................1-1
What You Need to Get Started .....................................................................................1-1
Software Programming Choices ...................................................................................1-1
LabVIEW and LabWindows Application Software .........................................1-2
NI-DAQ Driver Software..................................................................................1-2
Register-Level Programming............................................................................1-4
Optional Equipment......................................................................................................1-4
Custom Cables ..................................................................................................1-5
Unpacking.....................................................................................................................1-6
Chapter 2
Configuration and Installation......................................................................................2-1
Module Configuration...................................................................................................2-1
Configuration Options.......................................................................................2-1
Configuring the Rear Connector for Parallel Mode..............................2-2
Configuring the Rear Connector for Serial Mode.................................2-2
Jumper Use........................................................................................................2-3
Supplementary Jumper W3 Configuration Installation ........................2-6
Hardware Installation....................................................................................................2-6
Software Installation.....................................................................................................2-7
Chapter 3
Signal Connections ............................................................................................................3-1
Front Connector ................................................................................................3-3
Front Connector Signal Descriptions................................................................3-4
Input Channels ......................................................................................3-4
Sensing DC Voltages............................................................................3-4
Sensing AC Voltages............................................................................3-5
Signal Isolation .....................................................................................3-5
Signal Connection Example..................................................................3-5
Terminal Block .................................................................................................3-6
Rear Signal Connector......................................................................................3-6
Rear Signal Connector Signal Descriptions, Serial Configuration...................3-8
Rear Signal Connector Signal Descriptions, Parallel Configuration................3-9

Contents
SCXI-1162HV User Manual vi © National Instruments Corporation
Appendix A
Specifications.......................................................................................................................A-1
Appendix B
Customer Communication..............................................................................................B-1
Glossary........................................................................................................................Glossary-1
Index..................................................................................................................................Index-1
Figures
Figure 1-1. The Relationship between the Programming Environment,
NI-DAQ, and Your Hardware...........................................................................1-3
Figure 2-1. Removing the SCXI Module Cover..................................................................2-3
Figure 2-2. SCXI-1162HV Parts Locator Diagram.............................................................2-4
Figure 3-1. SCXI-1162HV Front Connector Pin Assignment.............................................3-3
Figure 3-2. Signal Connection Example..............................................................................3-6
Figure 3-3. SCXI-1162HV Rear Signal Connector Pin Assignments.................................3-7
Tables
Table 2-1. Digital Signal Connections, Jumper Settings....................................................2-5

© National Instruments Corporation vii SCXI-1162HV User Manual
About This Manual
This manual describes the electrical and mechanical aspects of the SCXI-1162HV and contains
information concerning its operation. The SCXI-1162HV is a member of the National Instruments
Signal Conditioning eXtensions for Instrumentation (SCXI) Series modules for the National
Instruments plug-in DAQ boards. This module switches and controls low-level and power signals.
The SCXI-1162HV operates as 32 digital input channels, arranged as eight banks of four channels.
Each bank is optically isolated.
Organization of This Manual
The SCXI-1162HV User Manual is organized as follows:
• Chapter 1, Introduction, describes the SCXI-1162HV; lists what you need to get started with
your SCXI-1162HV; describes the software programming choices and optional equipment;
and explains how to unpack the SCXI-1162HV kit.
• Chapter 2, Configuration and Installation, describes the SCXI-1162HV jumper
configurations and installation of the SCXI-1162HV into the SCXI chassis.
• Chapter 3, Signal Connections, describes the SCXI-1162HV signal connections via the front
and rear connectors, and has specifications and connection instructions for the SCXI-
1162HV connector signals.
• Appendix A, Specifications, lists the specifications for the SCXI-1162HV.
• Appendix B, Customer Communication, contains forms you can use to request help from
National Instruments or to comment on our products.
• The Glossary contains an alphabetical list and description of terms used in this manual,
including abbreviations, acronyms, metric prefixes, mnemonics, and symbols.
• The Index contains an alphabetical list of key terms and topics in this manual, including the
page where you can find each one.
Conventions Used in This Manual
The following conventions are used in this manual:
bold italic Bold italic text denotes a note, caution, or warning.
DIO board DIO board refers to the National Instruments AT-DIO-32F, MC-DIO-24,
MC-DIO-32F, NB-DIO-24, NB-DIO-96, NB-DIO-32F, PC-DIO-24, and
PC-DIO-96 digital I/O DAQ boards unless otherwise noted.

About This Manual
SCXI-1162HV User Manual viii © National Instruments Corporation
DIO-24 board DIO-24 board refers to the National Instruments MC-DIO-24,
NB-DIO-24, and PC-DIO-24 digital I/O DAQ boards.
DIO-type board DIO-type board refers to National Instruments DAQ boards that have only
digital inputs and outputs. These boards include the DIO-24, DIO-32F,
and DIO-96 boards unless otherwise noted.
italic Italic text denotes emphasis, a cross reference, or an introduction to a key
concept.
Lab board Lab board refers to the National Instruments Lab-LC, Lab-NB, Lab-PC,
and Lab-PC+ boards unless otherwise noted.
MC MC refers to the Micro Channel Series computers.
MIO board MIO board refers to the National Instruments AT-MIO-16, AT-MIO-16D,
AT-MIO-16F-5, AT-MIO-16X, AT-MIO-64F-5, MC-MIO-16,
NB-MIO-16, and NB-MIO-16X multichannel I/O DAQ boards unless
otherwise noted.
MIO-type board MIO-type board refers to National Instruments DAQ boards that have at
least analog and digital inputs and outputs. These boards include the MIO
boards, the Lab boards, and the PC-LPM-16 board unless otherwise noted.
monospace Lowercase text in this font denotes text or characters that are to be literally
input from the keyboard, sections of code, programming examples, and
syntax examples. This font is also used for the proper names of disk
drives, paths, directories, programs, subprograms, subroutines, device
names, functions, variables, filenames, and extensions, and for statements
and comments taken from program code.
NB NB refers to the NuBus Series computers.
PC PC refers to the IBM PC/XT, the IBM PC AT, and compatible computers.
SCXIbus SCXIbus refers to the backplane in the chassis. A signal on the backplane
is referred to as the SCXIbus <signal name> line (or signal). The
SCXIbus descriptor may be omitted when the meaning is clear.
Slot 0 Slot 0 refers to the power supply and control circuitry in the SCXI chassis.
Abbreviations, acronyms, metric prefixes, mnemonics, symbols, and terms are listed in the
Glossary.

About This Manual
© National Instruments Corporation ix SCXI-1162HV User Manual
The National Instruments Documentation Set
The SCXI-1162HV User Manual is one piece of the documentation set for your DAQ or SCXI
system. You could have any of several types of manuals, depending on the hardware and
software in your system. Use these different types of manuals as follows:
•Getting Started with SCXI–If you are using SCXI, this is the first manual you should read. It
gives an overview of the SCXI system and contains the most commonly needed information
for the modules, chassis, and software.
• Your SCXI hardware user manuals–If you are using SCXI, read these manuals next for
detailed information about signal connections and module configuration. They also explain
in greater detail how the module works and contain application hints.
• Your DAQ hardware user manuals–These manuals have detailed information about the DAQ
hardware that plugs into or is connected to your computer. Use these manuals for hardware
installation and configuration instructions, specification information about your DAQ
hardware, and application hints.
• Software manuals–Examples of software manuals you may have are the LabVIEW and
LabWindows®manual sets and the NI-DAQ manuals. After you have set up your hardware
system, use either the application software (LabVIEW or LabWindows) manuals or the
NI-DAQ manuals to help you write your application. If you have a large and complicated
system, it is worthwhile to look through the software manuals before you configure your
hardware.
• Accessory installation guides or manuals–If you are using accessory products, read the
terminal block and cable assembly installation guides or accessory board user manuals. They
explain how to physically connect the relevant pieces of the system. Consult these guides
when you are making your connections.
• SCXI chassis manuals–If you are using SCXI, read these manuals for maintenance
information on the chassis and installation instructions.
Related Documentation
In addition, the following National Instruments manual contains detailed information for the
register-level programmer.
•SCXI-1162HV Register-Level Programmer Manual
This manual is available from National Instruments by request. If you are using NI-DAQ,
LabVIEW, or LabWindows, you should not need the register-level programmer manual. Using
NI-DAQ, LabVIEW, or LabWindows is quicker and easier than and as flexible as using the low-
level programming described in the register-level programmer manual. Refer to Software
Programming Choices in Chapter 1, Introduction, of this manual to learn about your
programming options.

About This Manual
SCXI-1162HV User Manual x © National Instruments Corporation
Customer Communication
National Instruments wants to receive your comments on our products and manuals. We are
interested in the applications you develop with our products, and we want to help if you have
problems with them. To make it easy for you to contact us, this manual contains comment and
configuration forms for you to complete. These forms are in Appendix B, Customer
Communication, at the end of this manual.