IEC 60488-1:2004

INTERNATIONAL IEC
STANDARD 60488-1
First edition
2004-07
™
IEEE 488.1
Higher performance protocol for the standard
digital interface for programmable
instrumentation –
Part 1:
General
Reference number
IEC 60488-1(E):2004
IEEE Std. 488.1(E):2003
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INTERNATIONAL IEC
STANDARD 60488-1
First edition
2004-07
™
IEEE 488.1
Higher performance protocol for the standard
digital interface for programmable
instrumentation –
Part 1:
General
Copyright © IEEE 2004 ⎯ All rights reserved
IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of Electrical and Electronics Engineers, Inc.
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Commission Electrotechnique Internationale
International Electrotechnical Commission
Международная Электротехническая Комиссия

– 2 –
IEEE 488.1-2003(E)
CONTENTS
Foreword. 4
IEEE Introduction. 8
1. Overview. 10
1.1 Scope. 10.
1.2 Object. 11
1.3 Interface system overview . 11
2. References. 15
3. Definitions . 15
3.1 General system terms . 15
3.2 Units connected via the interface system . 16
3.3 Signals and paths . 16
4. Functional specifications. 17
4.1 Functional partition. 17
4.2 Notation used to specify interface functions. 21
4.3 Source handshake (SH) interface function . 24
4.4 Acceptor handshake (AH) and extended acceptor handshake (AHE) interface functions . 32
4.5 Talker (T) interface function (Includes serial poll capabilities) . 41
4.6 Listener (L) interface function. 49
4.7 Service request (SR) interface function . 55
4.8 Remote local (RL) interface function . 57
4.9 Parallel poll (PP) interface function. 60
4.10 Device clear (DC) interface function. 64
4.11 Device trigger (DT) interface function .    66
4.12 Controller (C) interface function . 68
4.13 Remote message coding and transfer. 80
4.14 Configuration (CF) interface function. 86
5. Electrical specifications.91
5.1 Application. 91
5.2 Logical and electrical state relationships . 91
5.3 Driver requirements . 91
5.4 Receiver requirements. 92
5.5 Composite device load requirements . 92
5.6 Ground requirements. 94
5.7 Cable characteristics. 95
5.8 State transition timing values . 95
6. Mechanical specifications. 98
6.1 Application. 98
6.2 Connector type. 98
6.3 Connector contact assignments. 99
6.4 Device connector mounting .100
6.5 Cable assembly .101
Published by IEC under licence from IEEE. © 2003 IEEE. All rights reserved.

– 3 –
IEEE 488.1-2003(E)
7. System applications and guidelines for the designer . 103
7.1 System compatibility. 103
7.2 Data rate consideration. 103
7.3 Device capabilities . 104
7.4 AND and OR logic operations . 104
7.5 Address assignment. 104
7.6 Typical combinations of interface functions.107
7.7 Unimplemented interface message handling .109
8. System requirements and guidelines for the user . 110
8.1 System compatibility . 110
8.2 System installation requirements . 110
8.3 Address assignment . 111
8.4 Cabling restrictions. 112
8.5 Operational sequence guidelines . 112
Annex A (informative) Typical instrument system . 116
Annex B (informative) Handshake process timing sequence. 118
Annex C (informative) Interface function-allowable subsets. 124
Annex D (informative) Interface message reference list. 134
Annex E (informative) Multiline interface messages: ISO code representation. 138
Annex F (informative) Logic circuit implementation. 139
Annex G (informative) Parallel polling sequence . 141
Annex H (informative) Description of interface parameters on data sheets. 142
Annex I (informative) Holdoff considerations for noninterlocked transfers . 146
Annex J (informative) Address switch labeling and interface status indicators . 147
Annex K (informative) Recommended methods for reducing the effects of radiated and conducted
interference for devices specified in this standard. 150
Annex L (informative) List of Participants . 153
Published by IEC under licence from IEEE. © 2003 IEEE. All rights reserved.

– 4 –
IEEE 488.1-2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGHER PERFORMANCE PROTOCOLE FOR THE STANDARD DIGITAL
INTERFACE FOR PROGRAMMABLE INSTRUMENTATION –
Part 1: General
FOREWORD
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...