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IEC 61850-90-1
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Communication networks and systems in substations – Part 9-1: Specific Communication Service Mapping (SCSM) – Sampled values over serial unidirectional multidrop point to point link
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INTERNATIONAL
STANDARD
IEC
61850-9-1
First edition
2003-05
Communication networks and
systems in substations –
Part 9-1:
Specific Communication Service
Mapping (SCSM) –
Sampled values over serial unidirectional
multidrop point to point link
Reference number
IEC 61850-9-1:2003(E)
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Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
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enables you to search by a variety of criteria including text searches, technical
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corrigenda.
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This summary of recently issued publications (http://www.iec.ch/online_news/
justpub/jp_entry.htm) is also available by email. Please contact the Customer
Service Centre (see below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: custserv@iec.ch
Tel: +41 22 919 02 11
Fax: +41 22 919 03 00
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INTERNATIONAL
STANDARD
IEC
61850-9-1
First edition
2003-05
Communication networks and
systems in substations –
Part 9-1:
Specific Communication Service
Mapping (SCSM) –
Sampled values over serial unidirectional
multidrop point to point link
IEC 2003 Copyright - all rights reserved
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.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
U
For price, see current catalo
g
ue
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
Межд
у
на
р
одная Элект
р
отехническая Комиссия
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– 2 – 61850-9-1 IEC:2003(E)
CONTENTS
FOREWORD .......................................................................................................................... 4
INTRODUCTION ....................................................................................................................6
1 Scope .............................................................................................................................. 7
2 Normative references....................................................................................................... 8
3 Terms and definitions....................................................................................................... 8
4 Abbreviations ................................................................................................................... 8
5 Principle of mapping to the serial unidirectional multidrop point to point link ..................... 9
5.1 Communication stack.............................................................................................. 9
5.1.1 Physical layer.............................................................................................10
5.1.2 Link layer ...................................................................................................11
5.1.3 Network layer.............................................................................................12
5.1.4 Transport layer...........................................................................................12
5.1.5 Session layer .............................................................................................12
5.1.6 Presentation layer ......................................................................................12
5.1.7 Application layer.........................................................................................12
5.2 Restrictions............................................................................................................12
6 Mapping of common types...............................................................................................12
6.1 Object name ..........................................................................................................12
6.2 Object reference ....................................................................................................12
7 Mapping of the model for transmission of sampled values using multicast........................13
7.1 Mapping of the multicast sampled values services..................................................13
7.2 Mapping of the update of the sampled value buffer.................................................14
7.3 Additional definitions for the transmission of sampled analogue values ...................14
7.3.1 Application layer functionality .....................................................................14
7.3.2 Presentation layer functionality...................................................................15
7.3.3 Transport layer functionality .......................................................................15
8 Mapping of the common data classes..............................................................................16
8.1 Overview ...............................................................................................................16
8.2 Additional definitions for the mapping of the common data classes .........................16
Annex A (normative) Definition of data set instances and related multicast sampled
value control instances ..........................................................................................................19
Annex B (informative) Calculation of required bandwidth .......................................................22
Annex C (informative) Definitions of logical node instance names and data names
related to the data sets ..........................................................................................................24
Annex D (informative) Electronic transformers block diagram and configuration example .....28
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61850-9-1 IEC:2003(E) – 3 –
Figure 1 – Example for the use of the serial unidirectional multidrop point to point link ............ 7
Figure 2 – Communication stack............................................................................................10
Figure 3 – Concatenation of several ASDU’s into one APDU ..................................................14
Figure A.1 – Data set for status indication..............................................................................20
Figure B.1 – Ethernet Frame Format......................................................................................23
Figure C.1 – Contents of the universal data set based on the specification in IEC 60044-8 ....27
Figure D.1 – Example for general block diagram of a single-phase electronic transformer .....28
Figure D.2 – Example for electronic transformers configuration..............................................29
Table 1 – Mapping of the object reference .............................................................................13
Table 2 – Mapping of the multicast sampled value services....................................................13
Table 3 – Encoding for the transmission of sampled value buffer ...........................................15
Table 4 – Extended common data class single point status information ..................................16
Table 5 – Encoding of the common data class SPS used for the universal data set ................16
Table 6 – Encoding of the common data class MV .................................................................17
Table 7 – Encoding of common data class SPS used for the status indication group...............18
Table A.1 – Predefined multicast sampled value control block instances relating
to the transmission of the Universal Data Set according to IEC 60044-8.................................19
Table A.2 – Predefined multicast sampled value control block instances relating to the
transmission of status indications ..........................................................................................21
Table B.1 – Selection guide for Ethernet physical layer (receiving node).................................22
Table B.2 – Selection guide for Ethernet physical layer (sending node) ..................................22
Table C.1 – Definitions of logical instance name and data names related to the
universal data set ..................................................................................................................24
Table C.2 – Definitions of logical instance name and data names related to the status
indication data set .................................................................................................................26
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