National Instruments AT-GPIB User manual

Getting Started with Your AT-GPIB

and the NI-488M™Software for

AT&T UNIX System V

August 1994 Edition

Part Number 320463-01

National Instruments Corporate Headquarters

6504 Bridge Point Parkway

Austin, TX 78730-5039

(512) 794-0100

Technical support fax: (800) 328-2203

(512) 794-5678

Branch Offices:

Australia (03) 879 9422, Austria (0662) 435986, Belgium 02/757.00.20,

Canada (Ontario) (519) 622-9310, Canada (Québec) (514) 694-8521,

Denmark 45 76 26 00, Finland (90) 527 2321, France (1) 48 14 24 24,

Germany 089/741 31 30, Italy 02/48301892, Japan (03) 3788-1921,

Netherlands 03480-33466, Norway 32-848400, Spain (91) 640 0085,

Sweden 08-730 49 70, Switzerland 056/20 51 51, U.K. 0635 523545

Limited Warranty

The AT-GPIB is warranted against defects in materials and workmanship

for a period of two years 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.

The media on which you receive National Instruments software are

warranted not to fail to execute programming instructions, due to defects in

materials and workmanship, for a period of 90 days from date of shipment,

as evidenced by receipts or other documentation. National Instruments will,

at its option, repair or replace software media that do not execute

programming instructions if National Instruments receives notice of such

defects during the warranty period. National Instruments does not warrant

that the operation of the software shall be uninterrupted or error free.

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.

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

NAT4882®, Turbo488® and NI-488M™ 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.

FCC/DOC Radio Frequency

Interference Compliance

This equipment generates and uses radio frequency energy and, if not

installed and used in strict accordance with the instructions in this manual,

may cause interference to radio and television reception. This equipment

has been tested and found to comply with the following two regulatory

agencies:

Federal Communications Commission

This device complies with Part 15 of the Federal Communications

Commission (FCC) Rules for a Class B digital device. A Class B device is

distinguishable from a Class A device by the appearance of an FCC ID

number located on the Class B device.

Canadian Department of Communications

This device complies with the limits for radio noise emissions from digital

apparatus set out in the Radio Interference Regulations of the Canadian

Department of Communications (DOC).

Le présent appareil numérique n’émet pas de bruits radioélectriques

dépassant les limites applicables aux appareils numériques de classe B

prescrites dans le règlement sur le brouillage radioélectrique édicté par le

ministère des communications du Canada.

Instructions to Users

These regulations are designed to provide reasonable protection against

interference from the equipment to radio and television reception in

residential areas.

There is no guarantee that interference will not occur in a particular

installation. However, the chances of interference are much less if the

equipment is installed and used according to this instruction manual.

If the equipment does cause interference to radio or television reception,

which can be determined by turning the equipment on and off, one or more

of the following suggestions may reduce or eliminate the problem.

• Operate the equipment and the receiver on different branches of your

AC electrical system.

• Move the equipment away from the receiver with which it is interfering.

• Reorient or relocate the receiver’s antenna.

• Be sure that the equipment is plugged into a grounded outlet and that

the grounding has not been defeated with a cheater plug.

Notice to user: Changes or modifications not expressly approved by

National Instruments could void the user’s authority to

operate the equipment under the FCC Rules.

If necessary, consult National Instruments or an experienced radio/television

technician for additional suggestions. The following booklet prepared by

the FCC may also be helpful: How to Identify and Resolve Radio-TV

Interference Problems. This booklet is available from the U.S. Government

Printing Office, Washington, DC 20402, Stock Number 004-000-00345-4.

Bescheinigung des Herstellers/Importeurs

Hiermit wird bescheinigt, daß die AT-GPIB in Übereinstimmung mit den

Bestimmungen der Vfg. 1046/1984 funk-entstört ist.

Der Detusche Bundespost wurde das Inverkehrbringen dieses Gerätes

angezeigt und die Berechtigung zur Überprüfung der Serie auf

Bestimmungen eingeräumt.

Preface

This manual contains instructions for installing and configuring the

National Instruments AT-GPIB interface board and NI-488M multitasking

software driver for use with the AT&T UNIX System V Release 4.0 (or

higher). This hardware and software are intended for use on a PC AT

compatible computer with 386 or higher processor. This manual is meant to

be used with the NI-488M Software Reference Manual.

Organization of This Manual

This manual is organized as follows:

Chapter 1, Introduction, lists the contents of your NI-488M kit and optional

equipment, and briefly describes the NI-488M software.

Chapter 2, Hardware Installation,contains step-by-step instructions for

installing the AT-GPIB interface board in a PC AT.

Chapter 3, Software Installation and Configuration, lists all the programs

and files located on the distribution disk and contains steps for installing

and configuring the NI-488M software and verifying the installation. This

chapter also contains other useful information including information for

getting started with a GPIB application program, the steps for removing the

NI-488M software, and the steps for changing the software configuration

after a successful installation.

Appendix A, New NI-488M Functions, describes three new NI-488M

functions included in the NI-488M software. These functions are not

described in the NI-488M Software Reference Manual.

Appendix B, Hardware Specifications, contains a description of the

physical and electrical characteristics of the AT-GPIB interface board and

the conditions under which it should be used.

Appendix C, Changing Hardware Configuration Settings, contains

instructions for changing the configuration settings of your AT-GPIB

interface board.

Preface

AT-GPIB/NI-488M/AT&T UNIX x © National Instruments Corp.

Appendix D, Customer Communication, contains forms you can use to

request help from National Instruments or to comment on our products and

manuals.

Conventions Used in This Manual

The following conventions are used throughout this manual.

italic Italic text denotes emphasis, a cross reference, or

an introduction to a key concept.

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.

<> Angle brackets enclose the name of a key on the

keyboard–for example, <PgDn>.

<Return> Key names are capitalized.

Preface

Abbreviations

The following metric system prefixes are used with abbreviations for units of

measure in this manual:

Prefix Meaning Value

M-

milli-

kilo-

mega-

10-3

103

106

The following abbreviations for units of measure are used in this manual:

A amperes

C Celsius

°degrees

hex hexadecimal

Hz hertz

in. inches

M megabytes of memory

m meters

% percent

sec seconds

Acronyms

The following acronyms are used in this manual:

ANSI American National Standards Institute

DMA direct memory access

EMI electromagnetic interference

GPIB General Purpose Interface (IEEE-488) bus

IEEE Institute of Electrical and Electronic Engineers

I/O input/output

EOI end or identify

VDC volts direct current

Note: References in this manual to IEEE-488 are referring to the

ANSI/IEEE Standard 488.1-1987, which defines the GPIB.

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