IEC 61850-7-1:2011

Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models

IEC 61850-7-1:2011 introduces the modelling methods, communication principles, and information models that are used in the various parts of the IEC 61850-7 series. The purpose is to provide - from a conceptual point of view - assistance to understand the basic modelling concepts and description methods for:
- substation-specific information models for power utility automation systems,
- device functions used for power utility automation purposes, and
- communication systems to provide interoperability within power utility facilities. Compared to the first edition, this second edition introduces:
- the model for statistical and historical statistical data,
- the concepts of proxies, gateways, LD hierarchy and LN inputs,
- the model for time synchronisation,
- the concepts behind different testing facilities,
- the extended logging function. It also clarifies certain items.

Réseaux et systèmes de communication pour l'automatisation des systèmes électriques - Partie 7-1: Structure de communication de base - Principes et modèles

La CEI 61850-7-1:2011 introduit les méthodes de modélisation, les principes de communication et les modèles d'information qui sont utilisés dans les différentes parties de la série CEI 61850-7-x. La présente partie de la série CEI 61850 a pour objectif de fournir - d'un point de vue conceptuel - une assistance pour comprendre les concepts de modélisation et les méthodes de description de base pour:
- des modèles d'information spécifiques à un poste pour des systèmes d'automatisation d'entreprises de distribution électrique,
- des fonctions de dispositif utilisées à des fins d'automatisation d'entreprises de distribution électrique, et
- des systèmes de communication pour assurer l'interopérabilité au sein des installations des entreprises de distribution électrique. En comparaison à la première édition, cette deuxième édition introduit:
- les concepts de proxy, passerelle, hiérarchie LD et entrées LN,
- les concepts sous-jacents aux différentes installations d'essai,
- la fonction de journalisation étendue. Elle clarifie également certains points.

General Information

• Status: Published
• Publication Date: 14-Jul-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: TC 57 - Power systems management and associated information exchange
• Drafting Committee: WG 10 - TC 57/WG 10
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jul-2011
• Completion Date: 15-Jul-2011

Relations

• Amended By: IEC 61850-7-1:2011/AMD1:2020 - Amendment 1 - Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models
• Effective Date: 05-Sep-2023
• Revises: IEC 61850-7-1:2003 - Communication networks and systems in substations - Part 7-1: Basic communication structure for substation and feeder equipment - Principles and models
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61850-7-1 ®
Edition 2.1 2020-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models
All rights reserved. Unless otherwise specified, 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
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IEC 61850-7-1 ®
Edition 2.1 2020-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-8823-8

– 2 – IEC 61850-7-1:2011+AMD1:2020 CSV
 IEC 2020
CONTENTS
FOREWORD . 11
INTRODUCTION . 13
1 Scope . 14
2 Normative references . 14
3 Terms and definitions . 15
4 Abbreviated terms . 16
5 Overview of the IEC 61850 series concepts . 17
5.1 Objective . 17
5.2 Topology and communication functions of substation automation systems . 18
5.3 The information models of substation automation systems . 19
5.4 Applications modelled by logical nodes defined in IEC 61850-7-4 . 21
5.5 The semantic is attached to data . 24
5.6 The services to exchange information . 26
5.7 Services mapped to concrete communication protocols. 28
5.8 The configuration of the automation system . 28
5.9 Summary . 29
6 Modelling approach of the IEC 61850 series . 30
6.1 Decomposition of application functions and information . 30
6.2 Creating information models by stepwise composition . 32
6.3 Example of an IED composition . 34
6.4 Information exchange models . 35
6.4.1 General. 35
6.4.2 Output model . 36
6.4.3 Input model . 40
6.4.4 Model for statistical and historical statistical data . 50
6.4.5 Model for system functions . 53
7 Application view. 55
7.1 General . 55
7.2 First modelling step – Logical nodes and data . 57
7.3 Mode and behaviour of a logical node . 60
7.4 Use of measurement ranges and alarms for supervision functions . 60
7.5 Data used for limiting the access to control actions . 61
7.6 Data used for blocking functions described by logical nodes . 61
7.7 Data used for logical node inputs/outputs blocking (operational blocking) . 61
7.7.1 General. 61
7.7.2 Blocking incoming commands . 62
7.7.3 Blocking process outputs . 62
7.7.4 Blocking the communication of status outputs updates . 62
7.8 Data used for testing . 63
7.8.1 General. 63
7.8.2 Multicast signals used for simulation . 63
7.8.3 Input signals used for testing . 64
7.8.4 Test mode. 66
7.9 Logical node used for extended logging functions . 66
8 Device view . 67

 IEC 2020
8.1 General . 67
8.2 Second modelling step – logical device model . 68
8.2.1 The logical device concept . 68
8.2.2 The device nameplate . 69
8.2.3 Gateways and proxies . 70
8.2.4 Logical devices for monitoring external device health. 74
8.2.5 Logical devices management hierarchy . 74
9 Communication view . 76
9.1 General . 76
9.2 The service models of the IEC 61850 series . 76
9.3 The virtualisation . 78
9.4 Basic information exchange mechanisms . 79
9.5 The client-server building blocks . 81
9.5.1 Server . 81
9.5.2 Client-server roles . 82
9.6 Logical nodes communicate with logical nodes . 83
9.7 Interfaces inside and between devices . 84
10 Where physical devices, application models and communication meet. 85
11 Relationships between IEC 61850-7-2, IEC 61850-7-3 and IEC 61850-7-4 . 86
11.1 Refinements of class definitions . 86
11.2 Example 1 – Logical node and data object class . 87
11.3 Example 2 – Relationship of IEC 61850-7-2, IEC 61850-7-3, and IEC 61850-7-4 . 91
12 Formal specification method . 93
12.1 Notation of ACSI classes . 93
12.2 Class modelling . 93
12.2.1 Overview . 93
12.2.2 Common data class . 95
12.2.3 Logical node class . 99
12.3 Service parameters tables . 101
12.4 Referencing instances . 102
13 Namespaces . 105
13.1 General . 105
13.2 Namespaces defined in the IEC 61850-7-x series . 106
13.3 Namespaces dependencies . 110
13.3.1 General. 110
13.3.2 Basic namespaces dependencies . 110
13.3.3 Other namespaces dependencies . 112
13.4 Specification of namespaces . 113
13.5 Attributes for references to namespaces . 113
13.5.1 General. 113
13.5.2 Attribute for logical device namespace (ldNs) . 114
13.5.3 Attribute for logical device basic namespace (LLN0.NamPlt.lnNs) . 114
13.5.4 Attribute for logical node namespace (lnNs) . 115
13.5.5 Attribute for data namespace (dataNs) . 115
13.5.6 Attribute for common data class namespace (cdcNs) . 115
13.5.7 Attribute for naming a common data class name (cdcName) . 115
13.6 Deprecation of namespaces . 116
14 Common rules for new version of classes and for extension of object classes . 116

– 4 – IEC 61850-7-1:2011+AMD1:2020 CSV
 IEC 2020
14.1 General . 116
14.2 Basic rules . 116
14.2.1 General. 116
14.2.2 Use of optional information . 119
14.2.3 General rules for enumerations types and enumeration-based data

objects and attributes. 119
14.3 Rules for extensions within private namespace .
...

IEC 61850-7-1 ®
Edition 2.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models

Réseaux et systèmes de communication pour l'automatisation des systèmes
électriques –
Partie 7-1: Structure de communication de base – Principes et modèles

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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IEC 61850-7-1 ®
Edition 2.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models

Réseaux et systèmes de communication pour l'automatisation des systèmes
électriques –
Partie 7-1: Structure de communication de base – Principes et modèles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XG
ICS 33.200 ISBN 978-2-88912-555-5

– 2 – 61850-7-1  IEC:2011
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 11
2 Normative references . 12
3 Terms and definitions . 13
4 Abbreviated terms . 13
5 Overview of the IEC 61850 series concepts . 14
5.1 Objective . 14
5.2 Topology and communication functions of substation automation systems . 16
5.3 The information models of substation automation systems . 16
5.4 Applications modelled by logical nodes defined in IEC 61850-7-4 . 18
5.5 The semantic is attached to data . 21
5.6 The services to exchange information . 23
5.7 Services mapped to concrete communication protocols . 24
5.8 The configuration of the automation system . 25
5.9 Summary . 26
6 Modelling approach of the IEC 61850 series . 27
6.1 Decomposition of application functions and information . 27
6.2 Creating information models by stepwise composition . 28
6.3 Example of an IED composition . 31
6.4 Information exchange models . 31
6.4.1 General . 31
6.4.2 Output model . 33
6.4.3 Input model . 36
6.4.4 Model for statistical and historical statistical data . 46
6.4.5 Model for system functions . 50
7 Application view . 52
7.1 General . 52
7.2 First modelling step – Logical nodes and data . 53
7.3 Mode and behaviour of a logical node . 57
7.4 Use of measurement ranges and alarms for supervision functions . 57
7.5 Data used for limiting the access to control actions . 58
7.6 Data used for blocking functions described by logical nodes . 58
7.7 Data used for logical node inputs/outputs blocking (operational blocking) . 58
7.7.1 General . 58
7.7.2 Blocking incoming commands . 59
7.7.3 Blocking process outputs . 59
7.7.4 Blocking oscillating inputs. 60
7.8 Data used for testing . 60
7.8.1 General . 60
7.8.2 Multicast signals used for simulation . 60
7.8.3 Input signals used for testing . 61
7.8.4 Test mode . 62
7.9 Logical node used for extended logging functions . 62
8 Device view . 63
8.1 General . 63

61850-7-1  IEC:2011 – 3 –
8.2 Second modelling step – logical device model . 64
8.2.1 The logical device concept . 64
8.2.2 The device nameplate . 65
8.2.3 Gateways and proxies . 66
8.2.4 Logical devices for monitoring external device health . 67
8.2.5 Logical devices management hierarchy . 68
9 Communication view . 70
9.1 General . 70
9.2 The service models of the IEC 61850 series . 70
9.3 The virtualisation . 72
9.4 Basic information exchange mechanisms . 73
9.5 The client-server building blocks . 75
9.5.1 Server . 75
9.5.2 Client-server roles . 76
9.6 Logical nodes communicate with logical nodes . 77
9.7 Interfaces inside and between devices . 78
10 Where physical devices, application models and communication meet . 79
11 Relationships between IEC 61850-7-2, IEC 61850-7-3 and IEC 61850-7-4 . 80
11.1 Refinements of class definitions . 80
11.2 Example 1 – Logical node and data class . 81
11.3 Example 2 – Relationship of IEC 61850-7-2, IEC 61850-7-3, and IEC 61850-7-4 . 85
12 Formal specification method . 86
12.1 Notation of ACSI classes . 86
12.2 Class modelling . 87
12.2.1 Overview . 87
12.2.2 Common data class . 88
12.2.3 Logical node class . 91
12.3 Service tables . 92
12.4 Referencing instances . 93
13 Name spaces . 96
13.1 General . 96
13.2 Name spaces defined in the IEC 61850-7-x series . 97
13.3 Specification of name spaces . 1
...