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IEEE488.1标准协议
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IEEE488.1标准协议 488.1 IEEE Standard for Higher Performance Protocol for the Standard Digital Interface for Programmable Instrumentation
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IEEE Std 488.1™-2003
Revision of IEEE Std 488.1-1987)
IEEE Standards
488.1
TM
IEEE Standard for Higher
Performance Protocol for the
Standard Digital Interface for
Programmable Instrumentation
Published by
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
12 December 2003
IEEE Instrumentation and Measurement Society
Sponsored by the
Technical Committee on Automated Test Systems
and Instrumentation (TC-8)
IEEE Standards
Print: SH95130
PDF: SS95130
Authorized licensed use limited to: IEEE Xplore. Downloaded on April 16, 2011 at 22:17 from IEEE Xplore. Restrictions apply.
Recognized as an
American National Standard (ANSI)
IEEE Std 488.1
™
-2003
(Revision of IEEE Std 488.1-1987)
IEEE Standard for Higher
Performance Protocol for the
Standard Digital Interface for
Programmable Instrumentation
Sponsor
Technical Committee on Automated Test Systems and Instrumentation (TC-8)
of the
IEEE Instrumentation and Measurement Society
Approved 10 October 2003
American National Standard Institute
Approved 12 June 2003
IEEE-SA Standards Board
Authorized licensed use limited to: IEEE Xplore. Downloaded on April 16, 2011 at 22:17 from IEEE Xplore. Restrictions apply.
Abstract: This standard applies to interface systems used to interconnect both programmable and
nonprogrammable electronic measuring apparatus with other apparatus and accessories neces-
sary to assemble instrumentation systems. It applies to the interface of instrumentation systems, or
portions of them, in which the
a) Data exchanged among the interconnected apparatus is digital (as distinct from analog)
b) Number of devices that may be interconnected by one contiguous bus does not exceed 15
c) Total transmission path lengths over the interconnecting cables does not exceed 20 m
d) Data rate among devices does not exceed 8 000 000 B/s
The basic functional specifications of this standard may be used in digital interface applications
that require longer distances, more devices, increased noise immunity, or combinations of these.
Different electrical and mechanical specifications may be required (for example, symmetrical cir-
cuit configurations, high threshold logic, special connectors, or cable configurations) for these
extended applications.
Keywords: GPIB, HPIB, HS488, non-interlocked handshake, three-wire handshake
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2003 by the Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 12 December 2003. Printed in the United States of America.
IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of Electrical and Electronics
Engineers, Incorporated.
Print: ISBN 0-7381-3692-1 SH95130
PDF: ISBN 0-7381-3693-X SS95130
No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior
written permission of the publisher.
Authorized licensed use limited to: IEEE Xplore. Downloaded on April 16, 2011 at 22:17 from IEEE Xplore. Restrictions apply.
IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the
IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consensus develop-
ment process, approved by the American National Standards Institute, which brings together volunteers representing varied
viewpoints and interests to achieve the final product. Volunteers are not necessarily members of the Institute and serve with-
out compensation. While the IEEE administers the process and establishes rules to promote fairness in the consensus
development process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the information con-
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Authorized licensed use limited to: IEEE Xplore. Downloaded on April 16, 2011 at 22:17 from IEEE Xplore. Restrictions apply.
iv Copyright © 2003 IEEE. All rights reserved.
Introduction
(This introduction is not part of IEEE Std 488.1-2003, IEEE Standard for Higher Performance Protocol for the Standard
Digital Interface for Programmable Instrumentation.)
IEEE Std 488
™
has enjoyed continuous and widespread use since its initial publication in 1975. The first
revision occurred in 1978 as a result of practical experience and recognition that certain clauses needed
clarification to improve compatibility among independently designed products. No major changes were
made in 1978; many changes were pure editorial; however, 20 clauses had textual changes with technical
implications, although none contradicted the concepts as defined in the original publication. Supplement A
was introduced in 1980 to correct one minor deficiency in the controller function related to “take control
synchronously.”
In 1987, a systematic review was undertaken as a result of both the normal 5-year review cycle and related
work on IEEE 488 device-dependent message syntax structures. In addition, there was a strong desire on the
part of both IEEE participants and our IEC colleagues to bring equivalent standards (IEC 625-1) into closer
alignment. IEEE Std 488.1-1987 represents the culmination of this review cycle. Again, no major technical
changes were made, and care was exercised to preserve compatibility with earlier versions of IEEE Std 488.
The IEEE Std 488.1-2003 specification adds new interface functions to allow designers the option of
implementing noninterlocked handshake transfers.
In preparing this specification, several stylistic changes to IEEE Std 488.1-1987 were necessary to bring the
document up to IEEE standards. The following changes were made:
— Clause 1, which previously consisted of an overview, definitions, and references, was divided into
three separate sections. Clause 1 now contains the overview, Clause 2 contains references, and
Clause 3 contains definitions.
— The first level of ordered lists was previously numbered (1, 2, 3...). To comply with the IEEE
standards, the first level of ordered lists is now lettered (a, b, c...), and the second level of ordered
lists is numbered (1, 2, 3...).
— In the earlier version of this specification, tables had no grids. Grids have been added to the tables in
this version.
The IEEE 488.1-2003, IEEE Standard for Digital Interface for Programmable Instrumentation, deals with
systems that use a byte-serial, bit-parallel means to transfer digital data among a group of instruments and
system components. The interface system described herein is optimized as an interdevice interface for
system components in relatively close proximity able to communicate over a contiguous party-line bus
system.
This document contains seven sections as follows:
— Clause 1 contains the scope, the object, and summary description of the interface.
— Clause 2 contains helpful references.
— Clause 3 contains basic definitions.
— Clause 4 deals with functional concepts and specifications of the interface system described in this
standard. One or more interface functions contained within a device are each able to process
messages and change states to maintain an orderly flow of information among a set of interconnected
devices.
— Clause 5 deals with the electrical realization of the interface in order to transfer messages among a
set of interconnected devices.
— Clause 6 deals with the mechanical realization of the interface in order to implement the electrical
aspects of the interface system.
— Clause 7 deals with system considerations that must be given to the design of an individual device in
order to make it compatible with other devices of a measurement system.
Authorized licensed use limited to: IEEE Xplore. Downloaded on April 16, 2011 at 22:17 from IEEE Xplore. Restrictions apply.
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