IEEE-1379-2000-R2006.pdf

Recognized as an American National Standard (ANSI) The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright © 2001 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 16 March 2001. Printed in the United States of America. Print: ISBN 0-7381-2639-X SH94890 PDF: ISBN 0-7381-2640-3SS94890 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. IEEE Std 1379-2000(R2006) (Revision of IEEE Std 1379-1997) IEEE Recommended Practice for Data Communications Between Remote Terminal Units and Intelligent Electronic Devices in a Substation Sponsor Substations Committee of the IEEE Power Engineering Society Reaffirmed 30 March 2006 Approved 21 September 2000 IEEE-SA Standards Board Approved 1 January 2001 American National Standards Institute Abstract: A uniform set of guidelines for communications and interoperations of remote terminal units (RTUs) and intelligent electronic devices (IEDs) in an electric utility substation is provided. A mechanism for adding data elements and message structures to this recommended practice is described. Keywords: IED, master station, RTU, slave, supervisory control and data acquisition (SCADA) systems Copyright The Institute of Electrical and Electronics Engineers, Inc. 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Provided by IHS under license with IEEELicensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 12:16:18 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright © 2001 IEEE. All rights reserved. iii Introduction (This introduction is not part of IEEE Std 1379-2000, IEEE Recommended Practice for Data Communications Between Remote Terminal Units and Intelligent Electronic Devices in a Substation.) This recommended practice presents a uniform set of guidelines for specifi c interdevice communication details that can permit interoperation of remote terminal units (RTUs) and intelligent electronic devices (IEDs) in an electric utility substation. The data defi nitions and message structure can be used by product developers of both RTUs and IEDs to create nonproprietary communication interfaces, and by buyers and specifi ers as a defi nition or reference document for data representation and transmission. The standard can also be used as a communication interface between RTUs and supervisory control and data acquisition (SCADA) master stations. The task force that prepared this recommended practice began with the objective of providing a forum for the providers and users of (smart) devices to discuss approaches to common data interchange. As the dia- logue progressed, members decided to survey, review, and evaluate existing communications protocols and standards for those protocols. Task force members, as a result of the studies, presentations, and discussions, decided that maximum progress toward interoperability would be made if existing defi ned protocol(s) were publicly implemented. The original trial use recommended practice was the result of that decision. This recommended practice does not establish an underlying communication standard. It instead provides a specifi c implementation of two existing communication protocols already in wide scale use in the public domain (all documentation is available for a nominal fee without proprietary restriction). This document is also a template for extensions of the concept by other groups, if desired. A mechanism for adding data ele- ments and message structures to this recommended practice is described, recognizing the rapid progress being made with IEDs of all types in all areas of the electric utility industry. There are continuing efforts in the IEEE Power Engineering Society Committees, as well as in the IEC and CIGRE to seek further compatibility among devices through communication standards. This is being aided by the efforts of many industry groups, consultants, and suppliers who see benefi ts in such compatibility. At the time this recommended practice was developed, Task Force 1 of Working Group C3 had the following membership: H. Lee Smith, Chair William J. Ackerman Alexander Apostolov Wayne R. Block Ken L. Cooley Ken Curtis Michael J. Dood James W. Evans Ron J. Farquharson Grant Gilcrest Ameen Hamdon Derick Hammond Dennis K. Holstein Marc Lacroix Parker McCauley Bruce Muschlitz H. Lee Smith Robert C. Sodergren John T. Tengdin Michael Thesing Jack Verson Tony Watson Andrew West David Wood Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 12:16:18 MDTNo reproduction or networking permitted without license from IHS -,-,- iv Copyright © 2001 IEEE. All rights reserved. The following members of the balloting committee voted on this standard: When the IEEE-SA Standards Board approved this standard on 21 September 2000, it had the following membership: Donald N. Heirman, Chair James T. Carlo, Vice Chair Judith Gorman, Secretary *Member Emeritus Also included is the following nonvoting IEEE-SA Standards Board liaison: Alan Cookson, NIST Representative Donald R. Volzka, TAB Representative Noelle D. Humenick IEEE Standards Project Editor Hanna E. Abdallah William J. Ackerman Stan J. Arnot Thomas M. Barnes George J. Bartok Michael J. Bio Philip C. Bolin Stuart H. Bouchey Dennis L. Carr James F. Christensen John R. Clayton Ken L. Cooley Robert Corlew Frank A. Denbrock W. Bruce Dietzman Randall L. Dotson Clifford Downs Paul R. Drum Donald G. Dunn Ahmed Elneweihi Gary R. Engmann James W. Evans Ron J. Farquharson David L. Harris Dennis K. Holstein James Jung George G. Karady Richard P. Keil Hermann Koch Luther W. Kurtz David S. Lehman H. Peter Lips John D. McDonald A. S. Mehraban A. P. Sakis Meliopoulos Gary L. Michel Bruce Muschlitz Daniel E. Nordell Shashi G. Patel Carlos O. Peixoto Radhakrishna V. Rebbapragada Paulo F. Ribeiro David Shafer Yitzhak G. Shertok Mark S. Simon Robert C. Sodergren Brian Sparling Peter G. Stewart Charles Sufana John T. Tengdin Duane R. Torgerson Peter S. Wong John A. Zulaski Satish K. Aggarwal Mark D. Bowman Gary R. Engmann Harold E. Epstein H. Landis Floyd Jay Forster* Howard M. Frazier Ruben D. Garzon James H. Gurney Richard J. Holleman Lowell G. Johnson Robert J. Kennelly Joseph L. Koepfi nger* Peter H. Lips L. Bruce McClung Daleep C. Mohla James W. Moore Robert F. Munzner Ronald C. Petersen Gerald H. Peterson John B. Posey Gary S. Robinson Akio Tojo Donald W. Zipse Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 12:16:18 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright © 2001 IEEE. All rights reserved. v Contents 1.Overview 1 1.1 Scope 1 1.2 Purpose. 1 1.3 Distributed network protocol (DNP3) . 2 1.4 IEC 60870-5 protocol 2 2.References 2 3.Definitions, acronyms, and abbreviations 3 3.1 Definitions 3 3.2 Acronyms and abbreviations 6 4.Description of RTU-to-IED communications needs 6 4.1 The traditional SCADA protocol. 7 4.2 Specific criteria used to select protocols for RTU/IED communication . 7 5.Recommended practice for RTU/IED communication 8 5.1 General application practice using DNP3 8 5.2 General application practice using IEC-60870-5 standards. 11 5.3 Functionality of the 101 companion standard profile 11 5.4 Summary comparative description tables 14 6.Physical layer definition (ISO/OSI layer 1). 16 6.1 Modes of transmission. 16 6.2 Local loop 16 6.3 Recommended physical layer for DNP3 16 6.4 Recommended physical layers for IEC 60870-5-101 (1995-11). 17 7.Data link layer definition (ISO/OSI layer 2) 17 7.1 Recommended data link layer for DNP3. 17 7.2 Recommended data link layer for IEC 60870-5-101 (1995-11) 20 7.3 DNP3 pseudo-transport layer (ISO/OSI layer 4). 20 8.Application layer definition (ISO/OSI layer 7) . 21 8.1 Recommended application layer for DNP3. 21 8.2 Recommended application layer for IEC 60870-5-101 (1995-11) 25 9.Definitions of data elements and objects. 28 9.1 DNP3 data element/object definition. 28 9.2 IEC 60870-5 data element definition. 28 9.3 Comparative tables of defined objects and data elements. 28 Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 12:16:18 MDTNo reproduction or networking permitted without license from IHS -,-,- vi Copyright © 2001 IEEE. All rights reserved. 10.Process for addition of data elements/objects 31 10.1 Creation 31 10.2 Role of the DNP users group. 31 Annex A (informative) Comparison of DNP3 and IEC 60870-5-101. 32 Annex B (informative) Protocol implementation 38 Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 12:16:18 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright © 2001 IEEE. All rights reserved. 1 IEEE Recommended Practice for Data Communications Between Remote Terminal Units and Intelligent Electronic Devices in a Subst