IEC 61850-7-4:2010

IEC 61850-7-4 ®
Edition 2.1 2020-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Communication networks and systems for power utility automation –
Part 7-4: Basic communication structure – Compatible logical node classes and
data object classes
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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and definitions clause of
IEC publications issued between 2002 and 2015. Some
IEC Customer Service Centre - webstore.iec.ch/csc entries have been collected from earlier publications of IEC
If you wish to give us your feedback on this publication or TC 37, 77, 86 and CISPR.

need further assistance, please contact the Customer Service

Centre: sales@iec.ch.
IEC 61850-7-4 ®
Edition 2.1 2020-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Communication networks and systems for power utility automation –

Part 7-4: Basic communication structure – Compatible logical node classes and

data object classes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-7890-1

– 2 – IEC 61850-7-4:2010+AMD1:2020 CSV
 IEC 2020
CONTENTS
FOREWORD . 18
INTRODUCTION . 21
1 Scope . 22
1.1 General . 22
1.2 Namespace name and version . 23
1.3 Code Component distribution . 24
2 Normative references . 24
3 Terms and definitions . 25
4 Abbreviated terms . 26
4.1 General purpose abbreviated terms . 26
4.2 Abbreviated terms used in data object names . 27
5 Logical node preliminaries . 38
5.1 Logical node groups . 38
5.2 Derived logical nodes and associated presence conditions nds/ds . 39
5.3 Interpretation of logical node tables . 40
5.4 Relationship between this standard and IEC 61850-5 . 42
6 Logical node classes . 61
6.1 General . 61
6.2 Abstract logical nodes (AbstractLNs) . 64
6.2.1 General . 64
6.2.2 Common abstract logical nodes (AbstractLNsCommon) . 64
6.2.3 Abstract GroupL logical nodes (AbstractLNsGroupL) . 79
6.2.4 Abstract GroupA logical nodes (AbstractLNsGroupA) . 81
6.2.5 Abstract GroupC logical nodes (AbstractLNsGroupC) . 81
6.2.6 Abstract GroupG logical nodes (AbstractLNsGroupG) . 81
6.2.7 Abstract GroupI logical nodes (AbstractLNsGroupI) . 81
6.2.8 Abstract GroupK logical nodes (AbstractLNsGroupK) . 81
6.2.9 Abstract GroupF logical nodes (AbstractLNsGroupF) . 81
6.2.10 Abstract GroupM logical nodes (AbstractLNsGroupM) . 84
6.2.11 Abstract GroupP logical nodes (AbstractLNsGroupP) . 88
6.2.12 Abstract GroupQ logical nodes (AbstractLNsGroupQ) . 100
6.2.13 Abstract GroupR logical nodes (AbstractLNsGroupR) . 103
6.2.14 Abstract GroupS logical nodes (AbstractLNsGroupS) . 107
6.2.15 Abstract GroupT logical nodes (AbstractLNsGroupT) . 113
6.2.16 Abstract GroupX logical nodes (AbstractLNsGroupX) . 116
6.2.17 Abstract GroupY logical nodes (AbstractLNsGroupY) . 118
6.2.18 Abstract GroupZ logical nodes (AbstractLNsGroupZ) . 119
6.3 System logical nodes (LNGroupL) . 123
6.3.1 General . 123
6.3.2 LN: Physical device LN  Name: LPHD . 124
6.3.3 LN: Logical device LN  Name: LLN0 . 125
6.3.4 LN: Physical communication channel supervision  Name: LCCH . 127
6.3.5 LN: GOOSE subscription  Name: LGOS . 128
6.3.6 LN: Sampled value subscription  Name: LSVS . 129
6.3.7 LN: Time management  Name: LTIM . 130
6.3.8 LN: Time master supervision  Name: LTMS . 131

 IEC 2020
6.3.9 LN: Service tracking  Name: LTRK . 132
6.4 Logical nodes for automatic control (LNGroupA) . 133
6.4.1 General . 133
6.4.2 LN: Neutral current regulator  Name: ANCR. 135
6.4.3 LN: Reactive power control  Name: ARCO . 137
6.4.4 LN: Resistor control  Name: ARIS . 138
6.4.5 LN: Automatic tap changer controller  Name: ATCC . 139
6.4.6 LN: Voltage control  Name: AVCO . 142
6.5 Logical nodes for control (LNGroupC) . 144
6.5.1 General . 144
6.5.2 LN: Alarm handling  Name: CALH . 146
6.5.3 LN: Cooling group control  Name: CCGR . 147
6.5.4 LN: Interlocking  Name: CILO . 149
6.5.5 LN: Point-on-wave switching  Name: CPOW . 150
6.5.6 LN: Switch controller  Name: CSWI . 151
6.5.7 LN: Synchronizer controller  Name: CSYN . 153
6.6 Logical nodes for functional blocks (LNGroupF) . 156
6.6.1 General . 156
6.6.2 LN: Counter LN  Name: FCNT . 158
6.6.3 LN: Curve shape description LN  Name: FCSD . 159
6.6.4 LN: Generic filter LN  Name: FFIL . 160
6.6.5 LN: Control function output limitation LN  Name: FLIM . 161
6.6.6 LN: PID regulator LN  Name: FPID . 162
6.6.7 LN: Ramp function LN  Name: FRMP . 164
6.6.8 LN: Schedule controller  Name: FSCC . 165
6.6.9 LN: Schedule  Name: FSCH . 166
6.6.10 LN: Setpoint control function LN  Name: FSPT . 169
6.6.11 LN: Action at over threshold LN  Name: FXOT . 171
6.6.12 LN: Action at under threshold LN  Name: FXUT . 172
6.7 Logical nodes for generic references (LNGroupG) . 173
6.7.1 General . 173
6.7.2 LN: Generic automatic process control  Name: GAPC . 174
6.7.3 LN: Generic process I/O  Name: GGIO . 175
6.7.4 LN: Generic log  Name: GLOG . 176
6.7.5 LN: Generic security application  Name: GSAL . 178
6.8 Logical nodes for interfacing and archiving (LNGroupI) . 179
6.8.1 General . 179
6.8.2 LN: Archiving  Name: IARC . 180
6.8.3 LN: Human machine interface  Name: IHMI . 182
6.8.4 LN: Safety alarm function  Name: ISAF . 183
6.8.5 LN: Telecontrol interface  Name: ITCI . 183
6.8.6 LN: Telemonitoring interface  Name: ITMI . 184
6.8.7 LN: Teleprotection communication interfaces  Name: ITPC . 185
6.9 Logical nodes for mechanical and non-electric primary equipment
(LNGroupK) . 187
6.9.1 General . 187
6.9.2 LN: Fan  Name: KFAN . 188
6.9.3 LN: Filter  Name: KFIL . 190
6.9.4 LN: Pump  Name: KPMP . 191

– 4 – IEC 61850-7-4:2010+AMD1:2020 CSV
 IEC 2020
6.9.5 LN: Tank  Name: KTNK . 192
6.9.6 LN: Valve control  Name: KVLV . 194
6.10 Logical nodes for metering and measurement (LNGroupM) . 195
6.10.1 General . 195
6.10.2 LN: Environmental information  Name: MENV . 197
6.10.3 LN: Flicker measurement  Name: MFLK . 199
6.10.4 LN: Flow measurements  Name: MFLW . 200
6.10.5 LN: Harmonics or interharmonics  Name: MHAI . 202
6.10.6 LN: Non-phase-relat
...

IEC 61850-7-4 ®
Edition 2.0 2010-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Communication networks and systems for power utility automation –
Part 7-4: Basic communication structure – Compatible logical node classes and
data object classes
Réseaux et systèmes de communication pour l'automatisation des systèmes
électriques –
Partie 7-4: Structure de communication de base – Classes de nœuds logiques
et classes d'objets de données compatibles
IEC 661850-7-4:2010-03(en-fr)
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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC 65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 61850-7-4 ®
Edition 2.0 2010-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Communication networks and systems for power utility automation –

Part 7-4: Basic communication structure – Compatible logical node classes and

data object classes
Réseaux et systèmes de communication pour l'automatisation des systèmes

électriques –
Partie 7-4: Structure de communication de base – Classes de nœuds logiques

et classes d'objets de données compatibles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-4692-4

– 2 – IEC 61850-7-4:2010  IEC 2010
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 11
2 Normative references. 12
3 Terms and definitions . 13
4 Abbreviated terms . 13
5 Logical node classes. 20
5.1 Logical node groups . 20
5.2 Interpretation of logical node tables . 21
5.3 System logical nodes LN group: L . 22
5.3.1 LN relationships . 22
5.3.2 LN: Physical device information  Name: LPHD. 23
5.3.3 LN: common logical node  Name: Common LN . 23
5.3.4 LN: Logical node zero  Name: LLN0 . 25
5.3.5 LN: Physical communication channel supervision  Name: LCCH . 26
5.3.6 LN: GOOSE subscription  Name: LGOS . 26
5.3.7 LN: Sampled value subscription  Name: LSVS . 27
5.3.8 LN: Time management  Name: LTIM . 27
5.3.9 LN: Time master supervision  Name: LTMS . 28
5.3.10 LN: Service tracking  Name: LTRK . 28
5.4 Logical nodes for automatic control  LN Group: A . 29
5.4.1 Modelling remarks . 29
5.4.2 LN: Neutral current regulator  Name: ANCR . 29
5.4.3 LN: Reactive power control  Name: ARCO . 31
5.4.4 LN: Resistor control  Name: ARIS . 31
5.4.5 LN: Automatic tap changer controller  Name: ATCC . 32
5.4.6 LN: Voltage control  Name: AVCO . 34
5.5 Logical nodes for control  LN Group: C . 35
5.5.1 Modelling remarks . 35
5.5.2 LN: Alarm handling  Name: CALH . 35
5.5.3 LN: Cooling group control  Name: CCGR . 35
5.5.4 LN: Interlocking  Name: CILO. 36
5.5.5 LN: Point-on-wave switching  Name: CPOW . 36
5.5.6 LN: Switch controller  Name: CSWI . 37
5.5.7 LN: Synchronizer controller  Name: CSYN . 38
5.6 Logical nodes for functional blocks  LN group F . 40
5.6.1 Modelling remarks . 40
5.6.2 LN: Counter  Name: FCNT . 40
5.6.3 LN: Curve shape description  Name: FCSD . 41
5.6.4 LN: Generic filter  Name: FFIL . 41
5.6.5 LN: Control function output limitation  Name: FLIM . 42
5.6.6 LN: PID regulator  Name: FPID . 42
5.6.7 LN: Ramp function  Name: FRMP. 43
5.6.8 LN: Set-point control function  Name: FSPT . 44
5.6.9 LN: Action at over threshold  Name: FXOT . 44
5.6.10 LN: Action at under threshold  Name: FXUT . 45

5.7 Logical nodes for generic references  LN Group: G . 45
5.7.1 Modelling remarks . 45
5.7.2 LN: Generic automatic process control  Name: GAPC . 45
5.7.3 LN: Generic process I/O  Name: GGIO . 46
5.7.4 LN: Generic log  Name: GLOG . 47
5.7.5 LN: Generic security application  Name: GSAL . 48
5.8 Logical nodes for interfacing and archiving  LN Group: I . 48
5.8.1 Modelling remarks . 48
5.8.2 LN: Archiving  Name: IARC . 48
5.8.3 LN: Human machine interface  Name: IHMI . 49
5.8.4 LN: Safety alarm function  Name: ISAF . 49
5.8.5 LN: Telecontrol interface  Name: ITCI . 50
5.8.6 LN: Telemonitoring interface  Name: ITMI . 50
5.8.7 LN: Teleprotection communication interfaces  Name: ITPC . 50
5.9 Logical nodes for mechanical and non-electric primary equipment  LN group
K . 52
5.9.1 Modelling remarks . 52
5.9.2 LN: Fan  Name: KFAN . 52
5.9.3 LN: Filter  Name: KFIL . 52
5.9.4 LN: Pump  Name: KPMP . 53
5.9.5 LN: Tank  Name: KTNK. 54
5.9.6 LN: Valve control  Name: KVLV . 54
5.10 Logical nodes for metering and measurement  LN Group: M . 55
5.10.1 Modelling remarks . 55
5.10.2 LN: Environmental information  Name: MENV . 56
5.10.3 LN: Flicker measurement name  Name: MFLK .
...