IEC 61850-7-4:2010
(Main)Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
IEC 61850-7-4:2010 specifies the information model of devices and functions generally related to common use regarding applications in systems for power utility automation. It also contains the information model of devices and function-related applications in substations. In particular, it specifies the compatible logical node names and data object names for communication between intelligent electronic devices (IED). This includes the relationship between logical nodes and data objects. Major technical changes with regard to the previous edition are as follows:
- corrections and clarifications according to technical issues raised by the users' community; extensions for new logical nodes for the power quality domain;
- extensions for the model for statistical and historical statistical data;
- extensions regarding IEC 61850-90-1;
- extensions for new logical nodes for monitoring functions according to IEC 62271;
- new logical nodes from IEC 61850-7-410 and IEC 61850-7-420 of general interest.
This publication is of core relevance for Smart Grid.
Réseaux et systèmes de communication pour l'automatisation des systèmes électriques - Partie 7-4: Structure de communication de base - Classes de noeuds logiques et classes d'objets de données compatibles
IEC 61850-7-4:2010 spécifie le modèle d'information des dispositifs et les fonctions généralement liées à l'usage commun concernant les applications dans des systèmes pour l'automatisation des entreprises de distribution d'électricité. Elle contient le modèle d'information de dispositifs et les applications liées aux fonctions dans les postes. En particulier, elle spécifie les noms de nœuds logiques compatibles et les noms d'objets de données pour la communication entre des dispositifs électroniques intelligents (IED). Cela comprend la relation entre nœuds logiques et objets de données. Les modifications techniques majeures par rapport à l'édition précédente sont les suivantes:
• corrections et clarifications en accord avec la lettre d'information "IEC 61850-technical issues by the IEC TC 57" (voir le document 57/963/INF, 2008-07-18);
• extensions pour les nouveaux nœuds logiques du domaine de la qualité de l'énergie électrique fournie;
• extensions pour le modèle de données statistiques et historiques;
• extensions par rapport à l'IEC 61850-90-1 (communications poste à poste);
• extensions pour les nouveaux nœuds logiques pour les fonctions de surveillance en accord avec l'IEC 62271;
• nouveaux nœuds logiques des IEC 61850-7-410 et IEC 61850-7-420 d'intérêt général.
General Information
Relations
Overview - IEC 61850-7-4:2010 (Compatible logical node classes and data object classes)
IEC 61850-7-4:2010 is part of the IEC 61850 family for communication networks and systems for power utility automation. It specifies the information model for devices and functions commonly used in substation and power utility automation systems. In particular, the standard defines compatible logical node (LN) names and data object classes that enable consistent data modelling and communication between intelligent electronic devices (IEDs). This edition includes corrections, clarifications and multiple extensions (power quality, statistical/historical data, monitoring per IEC 62271, and LNs from IEC 61850-7-410/7-420), making it core to Smart Grid implementations.
Key topics and technical requirements
- Information model: standardized definition of logical node classes and associated data objects for device and function representation.
- Compatible logical node names: consistent LN naming and grouping to ensure semantic interoperability across vendors.
- Data object classes: uniform data object names and structures that map to IEC 61850 services and engineering tools.
- Relationships and presence conditions: definition of how LNs and data objects relate and when they must or may be present.
- Extensions and updates: additions for power quality monitoring, statistical/historical data models, and interfaces aligned with IEC 61850‑90‑1 and IEC 62271.
- Namespace and code components: guidance on namespace/versioning and distribution of code components for implementations.
- Normative references and terminology: harmonized terms and definitions to align implementations and testing.
Practical applications
- Enabling interoperability between IEDs from different vendors by standardizing LN and data object semantics.
- Providing the canonical model used in substation automation engineering tools, configuration files, and SCL (Substation Configuration Language) mapping.
- Supporting power quality monitoring, historical/statistical reporting and integration of monitoring functions (e.g., switching, protection supervision).
- Informing firmware and software development for relay manufacturers, RTUs, and gateway devices implementing IEC 61850 data models.
- Facilitating Smart Grid use cases where consistent device models and data exchange are required across distribution, transmission and DER integration.
Who uses this standard
- Utility engineers and system architects designing substation automation and Smart Grid systems.
- IED and protection/control equipment manufacturers implementing IEC 61850 models.
- System integrators, testing labs and consultants performing conformance testing and integration.
- Software vendors of SCADA, historian, and engineering tools mapping data to standardized LNs and data objects.
Related standards
- IEC 61850 family (communication services, SCL, mapping standards)
- IEC 61850-5 (system and project engineering)
- IEC 61850-7-410 / 7-420 (specific device models referenced)
- IEC 61850-90-1 (integration and extensions)
- IEC 62271 (high-voltage switchgear monitoring functions)
Keywords: IEC 61850-7-4, logical node classes, data object classes, substation automation, IED interoperability, power quality, Smart Grid.
Standards Content (Sample)
IEC 61850-7-4 ®
Edition 2.0 2010-03
INTERNATIONAL
STANDARD
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Communication networks and systems for power utility automation –
Part 7-4: Basic communication structure – Compatible logical node classes and
data object classes
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IEC 61850-7-4 ®
Edition 2.0 2010-03
INTERNATIONAL
STANDARD
colour
inside
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
PRICE CODE
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ICS 33.200 ISBN 978-2-88910-577-9
– 2 – 61850-7-4 © IEC:2010(E)
CONTENTS
FOREWORD.8
INTRODUCTION.10
Scope.11
2 Normative references.12
3 Terms and definitions .13
4 Abbreviated terms.13
5 Logical node classes.19
5.1 Logical node groups .19
5.2 Interpretation of logical node tables .20
5.3 System logical nodes LN group: L .21
5.3.1 LN relationships.21
5.3.2 LN: Physical device information Name: LPHD.22
5.3.3 LN: common logical node Name: Common LN.22
5.3.4 LN: Logical node zero Name: LLN0 .24
5.3.5 LN: Physical communication channel supervision Name: LCCH .24
5.3.6 LN: GOOSE subscription Name: LGOS .25
5.3.7 LN: Sampled value subscription Name: LSVS.25
5.3.8 LN: Time management Name: LTIM.26
5.3.9 LN: Time master supervision Name: LTMS.26
5.3.10 LN: Service tracking Name: LTRK .27
5.4 Logical nodes for automatic control LN Group: A.27
5.4.1 Modelling remarks .27
5.4.2 LN: Neutral current regulator Name: ANCR .27
5.4.3 LN: Reactive power control Name: ARCO.29
5.4.4 LN: Resistor control Name: ARIS .29
5.4.5 LN: Automatic tap changer controller Name: ATCC .30
5.4.6 LN: Voltage control Name: AVCO.31
5.5 Logical nodes for control LN Group: C .32
5.5.1 Modelling remarks .32
5.5.2 LN: Alarm handling Name: CALH .32
5.5.3 LN: Cooling group control Name: CCGR.32
5.5.4 LN: Interlocking Name: CILO.33
5.5.5 LN: Point-on-wave switching Name: CPOW.33
5.5.6 LN: Switch controller Name: CSWI.34
5.5.7 LN: Synchronizer controller Name: CSYN.35
5.6 Logical nodes for functional blocks LN group F .36
5.6.1 Modelling remarks .36
5.6.2 LN: Counter Name: FCNT .36
5.6.3 LN: Curve shape description Name: FCSD .37
5.6.4 LN: Generic filter Name: FFIL .37
5.6.5 LN: Control function output limitation Name: FLIM .38
5.6.6 LN: PID regulator Name: FPID .38
5.6.7 LN: Ramp function Name: FRMP.39
5.6.8 LN: Set-point control function Name: FSPT .39
5.6.9 LN: Action at over threshold Name: FXOT .40
5.6.10 LN: Action at under threshold Name: FXUT .40
61850-7-4 © IEC:2010(E) – 3 –
5.7 Logical nodes for generic references LN Group: G .41
5.7.1 Modelling remarks .41
5.7.2 LN: Generic automatic process control Name: GAPC .41
5.7.3 LN: Generic process I/O Name: GGIO.42
5.7.4 LN: Generic log Name: GLOG.42
5.7.5 LN: Generic security application Name: GSAL.43
5.8 Logical nodes for interfacing and archiving LN Group: I.43
5.8.1 Modelling remarks .43
5.8.2 LN: Archiving Name: IARC .43
5.8.3 LN: Human machine interface Name: IHMI.44
5.8.4 LN: Safety alarm function Name: ISAF .44
5.8.5 LN: Telecontrol interface Name: ITCI .45
5.8.6 LN: Telemonitoring interface Name: ITMI .45
5.8.7 LN: Teleprotection communication interfaces Name: ITPC .45
5.9 Logical nodes for mechanical and non-electric primary equipment LN group
K .46
5.9.1 Modelling remarks .46
5.9.2 LN: Fan Name: KFAN .47
5.9.3 LN: Filter Name: KFIL .47
5.9.4 LN: Pump Name: KPMP.48
5.9.5 LN: Tank Name: KTNK.48
5.9.6 LN: Valve control Name: KVLV.49
5.10 Logical nodes for metering and measurement LN Group: M.50
5.10.1 Modelling remarks .50
5.10.2 LN: Environmental information Name: MENV .50
5.10.3 LN: Flicker measurement name Name: MFLK .51
5.10.4 LN: Harmonics or interharmonics Name: MHAI .52
5.10.5 LN: Non-phase-related harmonics or interharmonics Name: MHAN .53
5.10.6 LN: Hydrological information Name: MHYD .55
5.10.7 LN: DC measurement Name: MMDC.55
5.10.8 LN: Meteorological information Name: MMET.55
5.10.9 LN: Metering Name: MMTN.56
5.10.10 LN: Metering Name: MMTR.57
5.10.11 LN: Non-phase-related measurement Name: MMXN .57
5.10.12 LN: Measurement Name: MMXU.57
5.10.13 LN: Sequence and imbalance Name: MSQI.59
5.10.14 LN: Metering statistics Name: MSTA.60
5.11 Logical nodes for protection functions LN Group: P .60
5.11.1 Modelling remarks .60
5.11.2 LN: Differential Name: PDIF.61
5.11.3 LN: Direction comparison Name: PDIR .62
5.11.4 LN: Distance Name: PDIS.63
5.11.5 LN: Directional overpower Name: PDOP .63
5.11.6 LN: Directional underpower Name: PDUP .64
5.11.7 LN: Rate of change of frequency Name: PFRC.64
5.11.8 LN: Harmonic restraint Name: PHAR .65
5.11.9 LN: Ground detector Name: PHIZ .65
5.11.10 LN: Instantaneous overcurrent Name: PIOC.66
5.11.11 LN: Motor restart inhibition Name: PMRI .66
5.11.12 LN: Motor starting time supervision Name: PMSS .67
– 4 – 61850-7-4 © IEC:2010(E)
5.11.13 LN: Over power factor Name: POPF .67
5.11.14 LN: Phase angle measuring Name: PPAM .67
5.11.15 LN: Rotor protection Name: PRTR .68
5.11.16 LN: Protection scheme Name: PSCH .68
5.11.17 LN: Sensitive directional earthfault Name: PSDE.69
5.11.18 LN: Transient earth fault Name: PTEF .70
5.11.19 LN: Thyristor protection Name: PTHF .70
5.11.20 LN: Time overcurrent Name: PTOC .70
5.11.21 LN: Overfrequency Name: PTOF .71
5.11.22 LN: Overvoltage Name: PTOV .72
5.11.23 LN: Protection trip conditioning Name: PTRC .72
5.11.24 LN: Thermal overload Name: PTTR .73
5.11.25 LN: Undercurrent Name: PTUC.73
5.11.26 LN: Underfrequency Name: PTUF.74
5.11.27 LN: Undervoltage Name: PTUV.74
5.11.28 LN: Underpower factor Name: PUPF.75
5.11.29 LN: Voltage controlled time overcurrent Name: PVOC .75
5.11.30 LN: Volts per Hz Name: PVPH .76
5.11.31 LN: Zero speed or underspeed Name: PZSU.77
5.12 Logical nodes for power quality events LN Group: Q .77
5.12.1 Modelling remarks .77
5.12.2 LN: Frequency variation Name: QFVR.77
5.12.3 LN: Current transient Name: QITR .78
5.12.4 LN: Current unbalance variation Name: QIUB.78
5.12.5 LN: Voltage transient Name: QVTR .79
5.12.6 LN: Voltage unbalance variation Name: QVUB .79
5.12.7 LN: Voltage variation Name: QVVR .80
5.13 Logical nodes for protection related functions LN Group: R .80
5.13.1 Modelling remarks .80
5.13.2 LN: Disturbance recorder channel analogue Name: RADR .81
5.13.3 LN: Disturbance recorder channel binary Name: RBDR .81
5.13.4 LN: Breaker failure Name: RBRF .82
5.13.5 LN: Directional element Name: RDIR .82
5.13.6 LN: Disturbance recorder function Name: RDRE .83
5.13.7 LN: Disturbance record handling Name: RDRS .84
5.13.8 LN: Fault locator Name: RFLO.84
5.13.9 LN: Differential measurements Name: RMXU.84
5.13.10 LN: Power swing detection/blocking Name: RPSB.85
5.13.11 LN: Autoreclosing Name: RREC.86
5.13.12 LN: Synchronism-check Name: RSYN.86
5.14 Logical nodes for supervision and monitoring LN Group: S .87
5.14.1 Modelling remarks .87
5.14.2 LN: Monitoring and diagnostics for arcs Name: SARC .88
5.14.3 LN: Circuit breaker supervision Name: SCBR.88
5.14.4 LN: Insulation medium supervision (gas) Name: SIMG .89
5.14.5 LN: Insulation medium supervision (liquid) Name: SIML .90
5.14.6 LN: Tap changer supervision Name: SLTC.91
5.14.7 LN: Supervision of operating mechanism Name: SOPM .91
5.14.8 LN: Monitoring and diagnostics for partial discharges Name: SPDC.92
61850-7-4 © IEC:2010(E) – 5 –
5.14.9 LN: Power transformer supervision Name: SPTR .93
5.14.10 LN: Circuit switch supervision Name: SSWI .93
5.14.11 LN: Temperature supervision Name: STMP.94
5.14.12 LN: Vibration supervision Name: SVBR.95
5.15 Logical nodes for instrument transformers and sensors LN Group: T .96
5.15.1 Modelling remarks .96
5.15.2 LN: Angle Name: TANG.96
5.15.3 LN: Axial displacement Name: TAXD .96
5.15.4 LN: Current transformer Name: TCTR.97
5.15.5 LN: Distance Name: TDST.97
5.15.6 LN: Liquid flow Name: TFLW .98
5.15.7 LN: Frequency Name: TFRQ.98
5.15.8 LN: Generic sensor Name: TGSN .99
5.15.9 LN: Humidity Name: THUM.99
5.15.10 LN: Media level Name: TLVL . 100
5.15.11 LN: Magnetic field Name: TMGF . 100
5.15.12 LN: Movement sensor Name: TMVM. 100
5.15.13 LN: Position indicator Name: TPOS . 101
5.15.14 LN: Pressure sensor Name: TPRS. 101
5.15.15 LN: Rotation transmitter Name: TRTN. 102
5.15.16 LN: Sound pressure sensor Name: TSND . 102
5.15.17 LN: Temperature sensor Name: TTMP. 103
5.15.18 LN: Mechanical tension / stress Name: TTNS . 103
5.15.19 LN: Vibration sensor Name: TVBR . 104
5.15.20 LN: Voltage transformer Name: TVTR. 104
5.15.21 LN: Water acidity Name: TWPH. 105
5.16 Logical nodes for switchgear LN Group: X.105
5.16.1 Modelling remarks .105
5.16.2 LN: Circuit breaker Name: XCBR . 105
5.16.3 LN: Circuit switch Name: XSWI . 106
5.17 Logical nodes for power transformers LN Group: Y . 107
5.17.1 Modelling remarks .107
5.17.2 LN: Earth fault neutralizer (Petersen coil) Name: YEFN . 107
5.17.3 LN: Tap changer Name: YLTC . 107
5.17.4 LN: Power shunt Name: YPSH . 108
5.17.5 LN: Power transformer Name: YPTR . 108
5.18 Logical nodes for further power system equipment LN Group: Z . 109
5.18.1 Modelling remarks .109
5.18.2 LN: Auxiliary network Name: ZAXN . 109
5.18.3 LN: Battery Name: ZBAT . 109
5.18.4 LN: Bushing Name: ZBSH. 110
5.18.5 LN: Power cable Name: ZCAB . 110
5.18.6 LN: Capacitor bank Name: ZCAP. 111
5.18.7 LN: Converter Name: ZCON . 111
5.18.8 LN: Generator Name: ZGEN . 111
5.18.9 LN: Gas insulated line Name: ZGIL .112
5.18.10 LN: Power overhead line Name: ZLIN . 112
5.18.11 LN: Motor Name: ZMOT. 113
5.18.12 LN: Reactor Name: ZREA . 113
– 6 – 61850-7-4 © IEC:2010(E)
5.18.13 LN: Resistor Name: ZRES . 114
5.18.14 LN: Rotating reactive component Name: ZRRC. 114
5.18.15 LN: Surge arrestor Name: ZSAR . 115
5.18.16 LN: Semi-conductor controlled rectifier Name: ZSCR . 115
5.18.17 LN: Synchronous machine Name: ZSMC. 115
5.18.18 LN: Thyristor controlled frequency converter Name: ZTCF . 117
5.18.19 LN: Thyristor controlled reactive component Name: ZTCR. 117
6 Data object name semantics . 117
Annex A (normative) Interpretation of mode and behaviour . 156
Annex B (normative) Local / Remote concept . 158
Annex C (informative) Deprecated logical node classes . 160
Annex D (informative) Relationship between this standard and IEC 61850-5 . 161
Annex E (informative) Algorithms used in logical nodes for automatic control. 162
Annex F (normative) Statistical calculation . 167
Annex G (normative) Functional relationship of data objects of autorecloser RREC. 172
Annex H (normative) SCL enumerations . 173
Bibliography . 179
Figure 1 – Overview of this standard .12
Figure 2 – LOGICAL NODE relationships.21
Figure E.1 – Example of curve based on an indexed gate position providing water flow. 162
Figure E.2 – Example of curve based on an indexed guide vane position (x axis) vs. net
head (y axis) giving an interpolated runner blade position (Z axis). 163
Figure E.3 – Example of a proportional-integral-derivate controller. 164
Figure E.4 – Example of a power stabilisation system. 165
Figure E.5 – Example of a ramp generator . 165
Figure E.6 – Example of an interface with a set-point algorithm . 166
Figure F.1 – Statistical calculation of a vector. 168
Figure F.2 – Examples of statistical calculations. 170
Figure G.1 – Diagram of autorecloser function. 172
Table 1 – List of logical node groups. 19
Table 2 – Interpretation of logical node tables. 20
Table 3 – Relation between IEC 61850-5 and IEC 61850-7-4 for automatic control LNs. 27
Table 4 – Relation between IEC 61850-5 and IEC 61850-7-4 for control LNs. 32
Table 5 – Conditional attributes in FPID. 39
Table 6 – Relation between IEC 61850-5 and IEC 61850-7-4 for metering and
measurement LNs . 50
Table 7 – Relation between IEC 61850-5 and IEC 61850-7-4 (this standard) for protection LNs 60
Table 8 – Relation between IEC 61850-5 and IEC 61850-7-4 for protection related LN . 80
Table 9 – Relation between IEC 61850-5 and IEC 61850-7-4 for supervision and
monitoring LNs.87
Table 10 – Description of data objects. 117
Table A.1 – Values of mode and behaviour. 156
Table A.2 – Definition of mode and behaviour.157
61850-7-4 © IEC:2010(E) – 7 –
Table B.1 – Relationship between Loc/Rem data objects and control authority . 159
Table D.1 – Relationship between IEC 61850-5 and this standard for some
miscellaneous LNs .161
– 8 – 61850-7-4 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
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COMMUNICATION NETWORKS AND
SYSTEMS FOR POWER UTILITY AUTOMATION –
Part 7-4: Basic communication structure –
Compatible logical node classes and data object classes
FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61850-7-4 has been prepared by IEC technical committee 57:
Power systems management and associated information exchange.
This second edition cancels and replaces the first edition published in 2003. It constitutes a
technical revision.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The major technical changes with regard to the previous edition are as follows:
• corrections and clarifications according to information letter "IEC 61850-technical issues by
the IEC TC 57” (see document 57/963/INF, 2008-07-18);
• extensions for new logical nodes for the power quality domain;
61850-7-4 © IEC:2010(E) – 9 –
• extensions for the model for statistical and historical statistical data;
• extensions regarding IEC 61850-90-1 (substation-substation communication);
• extensions for new logical nodes for monitoring functions according to IEC 62271;
• new logical nodes from IEC 61850-7-410 and IEC 61850-7-420 of general interest.
The text of this standard is based on the following documents:
FDIS Report on voting
57/1045/FDIS 57/1051/RVD
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The content of this part of IEC 61850 is based on existing or emerging standards and
applications. In particular the definitions are based upon:
• the specific data objects types defined in IEC 60870-5-101 and IEC 60870-5-103;
• the common class definitions from the Utility Communication Architecture 2.0: Generic
Object Models for Substation and Feeder Equipment (GOMSFE) (IEEE TR 1550);
• CIGRE Report 34-03, Communication requirements in terms of data flow within substations,
December 1996.
A list of all parts of the IEC 61850 series under the general title Communication networks and
systems in substations, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
– 10 – 61850-7-4 © IEC:2010(E)
INTRODUCTION
This part of IEC 61850 is part of a set of standards, the IEC 61850 series. IEC 61850 defines
communication networks and systems for power utility automation, and more specially the
communication architecture for subsystems such as substation automation systems. The sum
of all subsystems may result also in the description of the communication architecture for the
overall power system management. The defined architecture provided in specific parts of
IEC 61850-7-x gives both a power utility specific data model and a substation domain specific
data model with abstract definitions of data objects classes and services independently from
the specific protocol stacks, implementations, and operating systems. The mapping of these
abstract classes and services to communication stacks is outside the scope of IEC 61850-7-x
and may be found in IEC 61850-8-x and in IEC 61850-9-x.
IEC 61850-7-1 gives an overview of the basic communication architecture to be used for all
applications in the power system domain. IEC 61850-7-3 defines common attribute types and
common data classes related to all applications in the power system domain. The attributes of
the common data classes may be accessed using services defined in IEC 61850-7-2. These
common data classes are used in this part to define the compatible data object classes.
To reach interoperability, all data objects in the data model need a strong definition with regard
to syntax and semantics. The semantics of the data objects is mainly provided by names
assigned to common logical nodes defined in this part and the data objects they contain, as
defined in this basic part, and dedicated logical nodes defined in domain specific parts such as
for hydro power control systems. Interoperability is easiest if as much as possible of the data
objects are defined as mandatory. Because of different approaches and technical features,
some data objects, especially settings, were declared as optional in this edition of the standard.
There are also data objects which were declared as conditional, i.e. they will become
mandatory under some well-defined conditions. After some experience has been gained with
this standard, this decision may be reviewed in the next edition of this part.
It should be noted that data objects with full semantics are only one of the elements required to
achieve interoperability. The standardized access to the data objects is defined in compatible,
power utility and domain specific services (see IEC 61850-7-2). Since data objects and
services are hosted by devices (IED), a proper device model is also needed. To describe both
the device capabilities and the interaction of the devices in the related system, a configuration
language is also needed, as defined in IEC 61850-6 by the substation configuration description
language (SCL).
The compatible logical node name and data object name definitions found in this part and the
associated semantics are fixed. The syntax of the type definitions of all data objects classes is
governed by abstract definitions provided in IEC 61850-7-2 and IEC 61850-7-3. Not all features
of logical nodes are listed in this part; for example, data sets and logs are covered in
IEC 61850-7-2.
61850-7-4 © IEC:2010(E) – 11 –
COMMUNICATION NETWORKS AND
SYSTEMS FOR POWER UTILITY AUTOMATION –
Part 7-4: Basic communication structure –
Compatible logical node classes and data object classes
1 Scope
This part of IEC 61850 specifies the information model of devices and functions generally
related to common use regarding applications in systems for power utility automation. It also
contains the information model of devices and function-related applications in substations. In
particular, it specifies the compatible logical node names and data object names for
communication between intelligent electronic devices (IED). This includes the relationship
between logical nodes and data objects.
The logical node names and data object names defined in this document are part of the class
model introduced in IEC 61850-7-1 and defined in IEC 61850-7-2. The names defined in this
document are used to build the hierarchical object references applied for communicating with
IEDs in systems for power utility automation and, especially, with IEDs in substations and on
distribution feeders. The naming conventions of IEC 61850-7-2 are applied in this part.
To avoid private, incompatible extensions, this part specifies normative naming rules for
multiple instances and private, compatible extensions of logical node (LN) classes and data
object names. Any definition is based on IEC 61850 or on referenced well identified public
documents.
This part does not provide tutorial material. It is recommended to read parts IEC 61850-5
and IEC 61850-7-1 first, in conjunction with IEC 61850-7-3, and IEC 61850-7-2.
This standard is applicable to describe device models and functions of substation and feeder
equipment. The concepts defined in this standard are also applied to describe device models
and functions for:
• substation-to-substation information exchange,
• substation-to-control centre information exchange,
• power plant-to-control centre information exchange,
• information exchange for distributed generation,
• information exchange for distributed automation, or
• information exchange for metering.
Figure 1 provides a general overview of this standard. The groups of logical nodes defined in
this standard are shown in Figure 1, ordered according to some semantic meaning, for
instance different control levels such as plant level, unit level, etc. For convenience, the logical
nodes are defined below in alphabetical order.
– 12 – 61850-7-4 © IEC:2010(E)
General LN information
System LNs . . . L
Interface LNs . . . I
Unit/Bay level . . . C, P, R,…
Process/Equipment level . K, S, X, T, Y, Z
G, F
General use . . .
Data semantics
Annex
IEC 1102/03
Figure 1 – Overview of this standard
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 60270:2000, High-voltage test techniques – Partial discharge measurements
IEC 61000-4-7:2002, Electromagnetic compatibility (EMC) – Part 4-7: Testing and
measurement techniques – General guide on harmonics and interharmonics measurements
and instrumentation, for power supply systems and equipment connected thereto
IEC 61000-4-15, Electromagnetic compatibility (EMC) – Part 4-15: Testing and measurement
techniques – Flickermeter – Functional and design specifications
IEC 61850-2, Communication networks and systems in substations – Part 2: Glossary
IEC 61850-5, Communication networks and systems in substations – Part 5: Communication
requirements for functions and device models
IEC 61850-7-1:___ , Communication networks and systems for power utility automation – Part
7-1: Basic communication structure – Principles and models
___________
To be published.
61850-7-4 © IEC:2010(E) – 13 –
IEC 61850-7-2:___ , Communication networks and systems for power utility automation – Part
7-2: Basic information and communication structure – Abstract communication service interface
(ACSI)
IEC 61850-7-3:___ , Communication networks and systems for power utility automation – Part
7-3: Basic communication structure – Common data classes
IEC 61850-9-2, Communication networks and systems for power utility automation – Part 9-2:
Specific Communication Service Mapping (SCSM) – Sampled values over ISO/IEC 8802-3
IEEE C37.111:1999, IEEE Standard Common Format for Transient Data Exchange
(COMTRADE) for Power Systems
IEEE 519:1992, IEEE Recommended Practises and Requirements for Harmonic Control in
Electrical Power Systems
IEEE C37.2:1996, Electrical Power System Device Function Numbers and Contact Designation
IEEE 1459:2000, IEEE Trial-Use Standard Definitions for the Measurement of Electric Power
Quantities Under Sinusoidal, Nonsinusoidal, Balanced, or Unbalanced Conditions
IEEE 1588, Precision clock synchronization protocol for networked measurement and control
systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61850-2 and
IEC 61850-7-2 apply.
4 Abbreviated terms
The following terms are used to build concatenated data object names. For example, ChNum is
constructed by using two terms "Ch" which stands for "Channel" and "Num" which stands for
"Number". Thus the concatenated name represents a "channel number".
Term Description Term Description
A Current Alm Alarm
Acs Access Amp Current non-phase-related
Abr Abrasion An Analogue
Abs Absolute Ang Angle
AC AC, alternating current Ap Access point
Acc Accuracy App Apparent
Act Action, activity Arc Arc
Acu Acoustic Area Area
Adj Adjustment Auth Authorisation
Adp Adapter, adaptation Auto Automatic
Age Ageing Aux Auxiliary
Air Air Av Average
Alg Algorithm AWatt Wattmetric component of current
___________
To be published.
To be published.
– 14 – 61850-7-4 © IEC:2010(E)
Term Description Term Description
CO Carbon monoxide
Ax Axial
B Bushing CO2 Carbon dioxide
Base Base Col Coil
Bat Battery Conf Configuration
Cons Constant
Beh Behaviour
Ber Bit error rate Con Contact
Bias Bias Cor Correction
Bin Binary Core Core
Crd Coordination
Blb Bulb
Blk Block, blocked Crit Critical
Bnd Band Crv Curve
Bo Bottom CT Current transducer
Bst Boost Ctl Control
Bus Bus Ctr Center
C Carbon Cur Current
C2H2 Acetylene Cvr Cover, cover level
C2H4 Ethylene Cyc Cycle
C2H6 Ethane D Derivate
Cap Capability Day Day
Capac Capacitance
...
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
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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-related AC harmonics and interharmonics Name:
MHAN . 204
6.10.7 LN: Heat measured values Name: MHET . 206
6.10.8 LN: Hydrological information Name: MHYD . 208
6.10.9 LN: DC measurement Name: MMDC . 209
6.10.10 LN: Meteorological information Name: MMET . 210
6.10.11 LN: Metering single phase Name: MMTN . 212
6.10.12 LN: Metering 3 phase Name: MMTR . 212
6.10.13 LN: Non-phase-related AC measurement Name: MMXN . 214
6.10.14 LN: Measurement Name: MMXU . 215
6.10.15 LN: Sequence and imbalance Name: MSQI . 217
6.11 Logical nodes for protection functions (LNGroupP) . 219
6.11.1 General . 219
6.11.2 LN: Differential Name: PDIF . 222
6.11.3 LN: Direction comparison Name: PDIR . 224
6.11.4 LN: Distance Name: PDIS . 225
6.11.5 LN: Directional overpower Name: PDOP . 228
6.11.6 LN: Directional underpower Name: PDUP . 230
6.11.7 LN: Rate of change of frequency Name: PFRC . 231
6.11.8 LN: Harmonic restraint Name: PHAR . 232
6.11.9 LN: Ground detector Name: PHIZ . 233
6.11.10 LN: Instantaneous overcurrent Name: PIOC . 235
6.11.11 LN: Motor restart inhibition Name: PMRI . 236
6.11.12 LN: Motor starting time supervision Name: PMSS . 237
6.11.13 LN: Over power factor Name: POPF . 239
6.11.14 LN: Phase angle measuring Name: PPAM . 240
6.11.15 LN: Rotor protection Name: PRTR . 241
6.11.16 LN: Protection scheme Name: PSCH . 242
6.11.17 LN: Sensitive directional earthfault Name: PSDE . 244
6.11.18 LN: Switch on to fault Name: PSOF . 246
6.11.19 LN: Voltage differential Name: PTDV . 247
6.11.20 LN: Transient earth fault Name: PTEF . 248
6.11.21 LN: Thyristor protection Name: PTHF . 250
6.11.22 LN: Time overcurrent Name: PTOC . 251
6.11.23 LN: Overfrequency Name: PTOF . 252
6.11.24 LN: Overvoltage Name: PTOV . 254
6.11.25 LN: Protection trip conditionning Name: PTRC. 255
6.11.26 LN: Thermal overload Name: PTTR . 256
6.11.27 LN: Undercurrent Name: PTUC . 258
6.11.28 LN: Underfrequency Name: PTUF . 260
6.11.29 LN: Undervoltage Name: PTUV . 261
IEC 2020
6.11.30 LN: Underpower factor Name: PUPF . 263
6.11.31 LN: Voltage controlled time overcurrent Name: PVOC . 264
6.11.32 LN: Volts per Hz Name: PVPH . 266
6.11.33 LN: Zero speed or underspeed Name: PZSU . 267
6.12 Logical nodes for power quality events (LNGroupQ) . 268
6.12.1 General . 268
6.12.2 LN: Frequency variation Name: QFVR . 269
6.12.3 LN: Current transient Name: QITR . 270
6.12.4 LN: Current unbalance variation Name: QIUB . 272
6.12.5 LN: Voltage transient Name: QVTR . 273
6.12.6 LN: Voltage unbalance variation Name: QVUB . 274
6.12.7 LN: Voltage variation Name: QVVR . 275
6.13 Logical nodes for protection related functions (LNGroupR) . 277
6.13.1 General . 277
6.13.2 LN: Disturbance recorder channel analogue Name: RADR . 279
6.13.3 LN: Disturbance recorder channel binary Name: RBDR . 281
6.13.4 LN: Breaker failure Name: RBRF . 282
6.13.5 LN: Directional element Name: RDIR . 283
6.13.6 LN: Disturbance recorder function Name: RDRE . 285
6.13.7 LN: Disturbance record handling Name: RDRS . 287
6.13.8 LN: Fault locator Name: RFLO . 288
6.13.9 LN: Differential measurements Name: RMXU . 289
6.13.10 LN: Power swing detection/blocking Name: RPSB . 290
6.13.11 LN: Autoreclosing Name: RREC . 292
6.13.12 LN: Synchronism check Name: RSYN . 294
6.14 Logical nodes for supervision and monitoring (LNGroupS) . 296
6.14.1 General . 296
6.14.2 LN: Monitoring and diagnostics for arcs Name: SARC . 297
6.14.3 LN: Circuit breaker supervision Name: SCBR . 299
6.14.4 LN: Insulation medium supervision (gas) Name: SIMG . 300
6.14.5 LN: Insulation medium supervision (liquid) Name: SIML . 302
6.14.6 LN: Tap changer supervision Name: SLTC . 304
6.14.7 LN: Supervision of operating mechanism Name: SOPM . 305
6.14.8 LN: Monitoring and diagnostics for partial discharges Name: SPDC . 307
6.14.9 LN: Pressure supervision Name: SPRS . 308
6.14.10 LN: Power transformer supervision Name: SPTR . 310
6.14.11 LN: Circuit switch supervision Name: SSWI . 311
6.14.12 LN: Temperature supervision Name: STMP . 313
6.14.13 LN: Vibration supervision Name: SVBR . 314
6.15 Logical nodes for instrument transformers and sensors (LNGroupT) . 315
6.15.1 General . 315
6.15.2 LN: Angle sensor Name: TANG . 317
6.15.3 LN: Axial displacement sensor Name: TAXD . 318
6.15.4 LN: Current transformer Name: TCTR . 319
6.15.5 LN: Distance sensor Name: TDST . 320
6.15.6 LN: Liquid flow sensor Name: TFLW . 322
6.15.7 LN: Frequency sensor Name: TFRQ . 323
6.15.8 LN: Generic sensor Name: TGSN . 324
6.15.9 LN: Humidity sensor Name: THUM . 325
– 6 – IEC 61850-7-4:2010+AMD1:2020 CSV
IEC 2020
6.15.10 LN: Media level sensor Name: TLVL . 326
6.15.11 LN: Magnetic field sensor Name: TMGF . 327
6.15.12 LN: Movement sensor Name: TMVM . 328
6.15.13 LN: Position indicator Name: TPOS . 329
6.15.14 LN: Pressure sensor Name: TPRS . 331
6.15.15 LN: Rotation transmitter Name: TRTN . 332
6.15.16 LN: Sound pressure sensor Name: TSND . 333
6.15.17 LN: Temperature sensor Name: TTMP . 334
6.15.18 LN: Mechanical tension / stress sensor Name: TTNS . 335
6.15.19 LN: Vibration sensor Name: TVBR . 336
6.15.20 LN: Voltage transformer Name: TVTR . 337
6.15.21 LN: Water acidity sensor Name: TWPH. 339
6.16 Logical nodes for switchgear (LNGroupX) . 340
6.16.1 General . 340
6.16.2 LN: Circuit breaker Name: XCBR . 341
6.16.3 LN: Fuse Name: XFUS . 344
6.16.4 LN: Circuit switch Name: XSWI . 345
6.17 Logical nodes for power transformers (LNGroupY) . 346
6.17.1 General . 346
6.17.2 LN: Earth fault neutralizer (Petersen coil) Name: YEFN . 347
6.17.3 LN: Tap changer Name: YLTC . 349
6.17.4 LN: Power shunt Name: YPSH . 350
6.17.5 LN: Power transformer Name: YPTR . 352
6.18 Logical nodes for further power system equipment (LNGroupZ) . 353
6.18.1 General . 353
6.18.2 LN: Auxiliary network Name: ZAXN . 356
6.18.3 LN: Battery Name: ZBAT . 357
6.18.4 LN: Bushing Name: ZBSH. 359
6.18.5 LN: Power cable Name: ZCAB . 360
6.18.6 LN: Capacitor bank Name: ZCAP . 361
6.18.7 LN: Converter Name: ZCON . 362
6.18.8 LN: Generator Name: ZGEN . 363
6.18.9 LN: Gas insulated line Name: ZGIL . 365
6.18.10 LN: Power overhead line Name: ZLIN . 366
6.18.11 LN: Motor Name: ZMOT . 367
6.18.12 LN: Reactor Name: ZREA . 369
6.18.13 LN: Resistor Name: ZRES . 370
6.18.14 LN: Rotating reactive component Name: ZRRC . 371
6.18.15 LN: Surge arrestor Name: ZSAR . 372
6.18.16 LN: Semi-conductor controlled rectifier Name: ZSCR . 373
6.18.17 LN: Synchronous machine Name: ZSMC . 375
6.18.18 LN: Thyristor controlled frequency converter Name: ZTCF . 377
6.18.19 LN: Thyristor controlled reactive component Name: ZTCR . 378
7 Data object name semantics and enumerations . 379
7.1 Data semantics . 379
7.2 Enumerated data attribute types . 428
7.2.1 General . 428
7.2.2 Adjustment (AdjustmentKind enumeration) . 428
7.2.3 Affected phases (AffectedPhasesKind enumeration) . 429
IEC 2020
7.2.4 Auto-reclosing (AutoReclosingKind enumeration) . 429
7.2.5 Behaviour or mode (BehaviourModeKind enumeration) . 429
7.2.6 Breaker operate capability (BreakerOpCapabilityKind enumeration) . 430
7.2.7 Calculation interval (CalcIntervalKind enumeration) . 431
7.2.8 Calculation method (CalcMethodKind enumeration) . 431
7.2.9 Calculation mode (CalcModeKind enumeration) . 432
7.2.10 Clock source (ClockSourceKind enumeration) . 432
7.2.11 Clock synchronisation (ClockSyncKind enumeration) . 433
7.2.12 Clock synchronisation locking (ClockSyncLockingKind enumeration) . 433
7.2.13 Direction mode (DirectionModeKind enumeration) . 433
7.2.14 Failure detection (FailureDetectionKind enumeration) . 434
7.2.15 Fault loop (FaultLoopKind enumeration) . 434
7.2.16 FaultMeasuredValueTypeKind enumeration . 434
7.2.17 Filter function (FilterFunctionKind enumeration) . 435
7.2.18 Fuse function (FuseFunctionKind enumeration) . 435
7.2.19 Health (HealthKind enumeration) . 435
7.2.20 Instrument Transformer Measurement Rating
(InstrumentTransformerMeasurementRatingKind enumeration) . 436
7.2.21 Instrument Transformer Protection Rating
(InstrumentTransformerProtectionRatingKind enumeration) . 436
7.2.22 Leap Second Consideration (LeapSecondKind enumeration) . 437
7.2.23 Level trigger mode (LevelTriggerModeKind enumeration) . 437
7.2.24 Live-dead mode (LiveDeadModeKind enumeration) . 437
7.2.25 Material (MaterialKind enumeration) . 438
7.2.26 State of material (MaterialStateKind enumeration) . 438
7.2.27 Power factor sign (PFSignKind enumeration) . 438
7.2.28 PID algorithm (PIDAlgorithmKind enumeration). 440
7.2.29 Point-on-wave switching capability (POWSwitchingCapabilityKind
enumeration) . 441
7.2.30 Parallel coil mode (ParallelCoilModeKind enumeration) . 441
7.2.31 Parallel control mode (ParallelCtrlModeKind enumeration) . 441
7.2.32 Parallel transformer mode (ParallelTransfModeKind enumeration) . 442
7.2.33 Polarizing quantity (PolarizingQuantityKind enumeration) . 442
7.2.34 Recording mode (RecordingModeKind enumeration) . 442
7.2.35 Rectifier control mode (RectifierControlModeKind enumeration) . 443
7.2.36 Reset curve (ResetCurveKind enumeration) . 443
7.2.37 Restraint mode (RestraintModeKind enumeration) . 443
7.2.38 Re-trip mode (RetripModeKind enumeration) . 444
7.2.39 Rotating machine state (RotatingMachineStateKind enumeration) . 444
7.2.40 Rotational direction (RotationalDirectionKind enumeration). 445
7.2.41 Rotor thermal state (RotorThermalStateKind enumeration) . 445
7.2.42 Enabling mode for switch on fault (SOFEnablingModeKind enumeration) . 445
7.2.43 Operation mode for switch on fault (SOFOperationModeKind
enumeration) . 445
7.2.44 Calculation method for apparent power (STotalCalcMethodKind
enumeration) . 446
7.2.45 Schedule enabling errors (ScheduleEnablingErrorKind enumeration) . 446
7.2.46 Schedule states (ScheduleStateKind enumeration) . 446
7.2.47 Setpoint end (SetpointEndKind enumeration) . 447
7.2.48 Stage control (StageControlKind enumeration) . 447
– 8 – IEC 61850-7-4:2010+AMD1:2020 CSV
IEC 2020
7.2.49 Start Week Day (StrWeekDayKind enumeration) . 448
7.2.50 Switch function (SwitchFunctionKind enumeration) . 448
7.2.51 Switching capability (SwitchingCapabilityKind enumeration) . 448
7.2.52 Synchronised operation mode (SynchOperationModeKind enumeration) . 449
7.2.53 Tank fill (TankFillKind enumeration) . 449
7.2.54 Transient Performance Class (TransientPerformanceClassKind
enumeration) . 449
7.2.55 Teleprotection application mode (TpcAppModeKind enumeration) . 450
7.2.56 Trigger source (TriggerSourceKind enumeration) . 450
7.2.57 Tripping behaviour (TripBehaviourKind enumeration) . 450
7.2.58 Tripping mode (TripModeKind enumeration) . 451
7.2.59 Tuning (TuningKind enumeration) . 451
7.2.60 Unbalance detection method (UnbalanceDetectionKind enumeration) . 451
7.2.61 Unblock mode (UnblockModeKind enumeration) . 452
7.2.62 Voltage interrupt detection (VoltInterruptDetectionKind enumeration) . 452
7.2.63 Weak end infeed mode (WeakEndInfeedModeKind enumeration) . 452
Annex A (normative) Interpretation of mode and behaviour . 454
Annex B (normative) Local / Remote concept . 457
Annex C (informative) Deprecated logical node classes . 459
C.1 General . 459
C.2 LN: Metering statistics Name: MSTA . 459
Annex D (informative) Relationship between this standard and IEC 61850-5 . 460
Annex E (informative) Algorithms used in logical nodes for automatic control . 461
E.1 General . 461
E.2 Logical node FCSD (curve shape description) . 461
E.3 Logical node FCSV (curve shape group) . 461
E.4 Logical node FPID (PID regulator function) . 462
E.5 Logical node FFIL (filter function). 463
E.6 Logical node FRMP (setpoint ramping function) . 464
E.7 Logical node FSPT (setpoint control function) . 464
Annex F (normative) Statistical calculation . 466
F.1 Statistical calculation basis . 466
F.2 Time interval definitions (relating to statistical calculation) . 467
F.2.1 Examples . 468
F.3 Calculation start . 469
F.3.1 Start of statistical calculation means that . 469
F.3.2 The three possible start conditions available in the model . 469
Annex G (informative) Functional relationship of data objects of autorecloser RREC . 471
Annex H (normative) SCL enumerations (from DOEnums) . 472
Annex I (informative) Conditions for element presence . 473
Annex J (normative) Compatibility of the different revisions of the standard . 475
J.1 General . 475
J.2 List of the modifications to consider for backward / forward compatibility . 475
J.3 List of modifications requiring specific treatment . 478
Annex K (normative) Models principles and requirements for scheduling . 479
K.1 Schedules introduction . 479
K.2 Principles for modelling schedules . 479
K.2.1 General . 479
IEC 2020
K.2.2 Schedule controllers and their schedules . 479
K.2.3 Scheduling and direct control / setting . 480
K.2.4 Schedule behaviour . 481
K.2.5 Schedule structure . 483
K.2.6 Managing schedules . 483
K.2.7 Configuration of schedules . 488
K.2.8 CDCs of supported scheduled entities . 488
K.3 Examples and further explanations . 489
K.4 Impact of Mode (Mod) on the schedule status and on the controllable entity . 489
Bibliography . 490
Figure 1 – Overview of this standard . 23
Figure 2 – Class diagram LogicalNodes::LogicalNodesGroups . 62
Figure 3 – Class diagram LogicalNodes::TopLevelLogicalNodes . 63
Figure 4 – Class diagram AbstractLNs::AbstractLNs . 64
Figure 5 – Class diagram AbstractLNsCommon::AbstractLNsCommon . 65
Figure 6 – Adaptation angle . 77
Figure 7 – Class diagram AbstractLNsGroupL::AbstractLNsGroupL . 80
Figure 8 – Class diagram AbstractLNsGroupF::AbstractLNsGroupF . 82
Figure 9 – Class diagram AbstractLNsGroupM::AbstractLNsGroupM . 85
Figure 10 – Class diagram AbstractLNsGroupP::AbstractLNsGroupP . 88
Figure 11 – Class diagram AbstractLNsGroupQ::AbstractLNsGroupQ . 101
Figure 12 – Class diagram AbstractLNsGroupR::AbstractLNsGroupR . 104
Figure 13 – Class diagram AbstractLNsGroupS::AbstractLNsGroupS . 108
Figure 14 – Class diagram AbstractLNsGroupT::AbstractLNsGroupT . 113
Figure 15 – Class diagram AbstractLNsGroupX::AbstractLNsGroupX . 117
Figure 16 – Class diagram AbstractLNsGroupZ::AbstractLNsGroupZ . 119
Figure 17 – Class diagram LNGroupL::LNGroupL . 124
Figure 18 – Class diagram LNGroupA::LNGroupA . 134
Figure 19 – Class diagram LNGroupC::LNGroupC1 . 144
Figure 20 – Class diagram LNGroupC::LNGroupC2 . 145
Figure 21 – Class diagram LNGroupF::LNGroupF . 157
Figure 22 – State machine of FSCH . 167
Figure 23 – Class diagram LNGroupG::LNGroupG . 173
Figure 24 – Class diagram LNGroupI::LNGroupI . 180
Figure 25 – Class diagram LNGroupK::LNGroupK . 188
Figure 26 – Class diagram LNGroupM::LNGroupM1 . 196
Figure 27 – Class diagram LNGroupM::LNGroupM2 . 197
Figure 28 – Class diagram LNGroupP::LNGroupP1 . 220
Figure 29 – Class diagram LNGroupP::LNGroupP2 . 221
Figure 30 – Class diagram LNGroupP::LNGroupP3 . 222
Figure 31 – Load area and reach settings . 226
Figure 32 – Class diagram LNGroupQ::LNGroupQ . 269
Figure 33 – Class diagram LNGroupR::LNGroupR1 . 278
...
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)
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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 . 56
5.10.4 LN: Harmonics or interharmonics Name: MHAI . 57
5.10.5 LN: Non-phase-related harmonics or interharmonics Name: MHAN . 59
5.10.6 LN: Hydrological information Name: MHYD . 61
5.10.7 LN: DC measurement Name: MMDC . 61
5.10.8 LN: Meteorological information Name: MMET . 61
5.10.9 LN: Metering Name: MMTN. 62
5.10.10 LN: Metering Name: MMTR. 63
5.10.11 LN: Non-phase-related measurement Name: MMXN . 63
5.10.12 LN: Measurement Name: MMXU . 64
5.10.13 LN: Sequence and imbalance Name: MSQI . 66
5.10.14 LN: Metering statistics Name: MSTA . 67
5.11 Logical nodes for protection functions LN Group: P . 67
5.11.1 Modelling remarks . 67
5.11.2 LN: Differential Name: PDIF. 69
5.11.3 LN: Direction comparison Name: PDIR . 69
5.11.4 LN: Distance Name: PDIS . 70
5.11.5 LN: Directional overpower Name: PDOP . 71
5.11.6 LN: Directional underpower Name: PDUP . 72
5.11.7 LN: Rate of change of frequency Name: PFRC . 72
5.11.8 LN: Harmonic restraint Name: PHAR . 73
5.11.9 LN: Ground detector Name: PHIZ . 73
5.11.10 LN: Instantaneous overcurrent Name: PIOC . 74
5.11.11 LN: Motor restart inhibition Name: PMRI . 74
5.11.12 LN: Motor starting time supervision Name: PMSS . 75
– 4 – IEC 61850-7-4:2010 IEC 2010
5.11.13 LN: Over power factor Name: POPF . 75
5.11.14 LN: Phase angle measuring Name: PPAM . 76
5.11.15 LN: Rotor protection Name: PRTR . 76
5.11.16 LN: Protection scheme Name: PSCH . 77
5.11.17 LN: Sensitive directional earthfault Name: PSDE . 78
5.11.18 LN: Transient earth fault Name: PTEF . 79
5.11.19 LN: Thyristor protection Name: PTHF . 79
5.11.20 LN: Time overcurrent Name: PTOC . 80
5.11.21 LN: Overfrequency Name: PTOF . 80
5.11.22 LN: Overvoltage Name: PTOV . 82
5.11.23 LN: Protection trip conditioning Name: PTRC . 82
5.11.24 LN: Thermal overload Name: PTTR . 83
5.11.25 LN: Undercurrent Name: PTUC . 84
5.11.26 LN: Underfrequency Name: PTUF . 85
5.11.27 LN: Undervoltage Name: PTUV . 86
5.11.28 LN: Underpower factor Name: PUPF . 86
5.11.29 LN: Voltage controlled time overcurrent Name: PVOC . 87
5.11.30 LN: Volts per Hz Name: PVPH . 87
5.11.31 LN: Zero speed or underspeed Name: PZSU . 88
5.12 Logical nodes for power quality events LN Group: Q . 88
5.12.1 Modelling remarks . 88
5.12.2 LN: Frequency variation Name: QFVR . 89
5.12.3 LN: Current transient Name: QITR . 89
5.12.4 LN: Current unbalance variation Name: QIUB . 90
5.12.5 LN: Voltage transient Name: QVTR . 90
5.12.6 LN: Voltage unbalance variation Name: QVUB . 90
5.12.7 LN: Voltage variation Name: QVVR . 91
5.13 Logical nodes for protection related functions LN Group: R . 92
5.13.1 Modelling remarks . 92
5.13.2 LN: Disturbance recorder channel analogue Name: RADR . 92
5.13.3 LN: Disturbance recorder channel binary Name: RBDR . 93
5.13.4 LN: Breaker failure Name: RBRF . 93
5.13.5 LN: Directional element Name: RDIR . 94
5.13.6 LN: Disturbance recorder function Name: RDRE . 94
5.13.7 LN: Disturbance record handling Name: RDRS . 95
5.13.8 LN: Fault locator Name: RFLO . 96
5.13.9 LN: Differential measurements Name: RMXU . 96
5.13.10 LN: Power swing detection/blocking Name: RPSB . 97
5.13.11 LN: Autoreclosing Name: RREC . 97
5.13.12 LN: Synchronism-check Name: RSYN . 98
5.14 Logical nodes for supervision and monitoring LN Group: S . 99
5.14.1 Modelling remarks . 99
5.14.2 LN: Monitoring and diagnostics for arcs Name: SARC . 100
5.14.3 LN: Circuit breaker supervision Name: SCBR . 100
5.14.4 LN: Insulation medium supervision (gas) Name: SIMG . 102
5.14.5 LN: Insulation medium supervision (liquid) Name: SIML . 102
5.14.6 LN: Tap changer supervision Name: SLTC . 103
5.14.7 LN: Supervision of operating mechanism Name: SOPM . 104
5.14.8 LN: Monitoring and diagnostics for partial discharges Name: SPDC. 105
5.14.9 LN: Power transformer supervision Name: SPTR . 106
5.14.10 LN: Circuit switch supervision Name: SSWI . 107
5.14.11 LN: Temperature supervision Name: STMP. 108
5.14.12 LN: Vibration supervision Name: SVBR . 108
5.15 Logical nodes for instrument transformers and sensors LN Group: T . 109
5.15.1 Modelling remarks . 109
5.15.2 LN: Angle Name: TANG . 109
5.15.3 LN: Axial displacement Name: TAXD . 109
5.15.4 LN: Current transformer Name: TCTR . 110
5.15.5 LN: Distance Name: TDST . 111
5.15.6 LN: Liquid flow Name: TFLW . 111
5.15.7 LN: Frequency Name: TFRQ . 111
5.15.8 LN: Generic sensor Name: TGSN . 112
5.15.9 LN: Humidity Name: THUM . 112
5.15.10 LN: Media level Name: TLVL . 113
5.15.11 LN: Magnetic field Name: TMGF . 113
5.15.12 LN: Movement sensor Name: TMVM . 114
5.15.13 LN: Position indicator Name: TPOS . 115
5.15.14 LN: Pressure sensor Name: TPRS . 115
5.15.15 LN: Rotation transmitter Name: TRTN . 116
5.15.16 LN: Sound pressure sensor Name: TSND . 116
5.15.17 LN: Temperature sensor Name: TTMP . 117
5.15.18 LN: Mechanical tension / stress Name: TTNS . 117
5.15.19 LN: Vibration sensor Name: TVBR . 118
5.15.20 LN: Voltage transformer Name: TVTR . 118
5.15.21 LN: Water acidity Name: TWPH . 119
5.16 Logical nodes for switchgear LN Group: X . 120
5.16.1 Modelling remarks . 120
5.16.2 LN: Circuit breaker Name: XCBR . 120
5.16.3 LN: Circuit switch Name: XSWI . 120
5.17 Logical nodes for power transformers LN Group: Y . 121
5.17.1 Modelling remarks . 121
5.17.2 LN: Earth fault neutralizer (Petersen coil) Name: YEFN . 121
5.17.3 LN: Tap changer Name: YLTC . 122
5.17.4 LN: Power shunt Name: YPSH . 123
5.17.5 LN: Power transformer Name: YPTR . 123
5.18 Logical nodes for further power system equipment LN Group: Z . 124
5.18.1 Modelling remarks . 124
5.18.2 LN: Auxiliary network Name: ZAXN . 124
5.18.3 LN: Battery Name: ZBAT . 125
5.18.4 LN: Bushing Name: ZBSH . 125
5.18.5 LN: Power cable Name: ZCAB . 125
5.18.6 LN: Capacitor bank Name: ZCAP . 126
5.18.7 LN: Converter Name: ZCON . 126
5.18.8 LN: Generator Name: ZGEN . 126
5.18.9 LN: Gas insulated line Name: ZGIL . 127
5.18.10 LN: Power overhead line Name: ZLIN . 127
5.18.11 LN: Motor Name: ZMOT . 128
5.18.12 LN: Reactor Name: ZREA . 128
– 6 – IEC 61850-7-4:2010 IEC 2010
5.18.13 LN: Resistor Name: ZRES . 129
5.18.14 LN: Rotating reactive component Name: ZRRC . 129
5.18.15 LN: Surge arrestor Name: ZSAR . 130
5.18.16 LN: Semi-conductor controlled rectifier Name: ZSCR . 130
5.18.17 LN: Synchronous machine Name: ZSMC . 131
5.18.18 LN: Thyristor controlled frequency converter Name: ZTCF . 133
5.18.19 LN: Thyristor controlled reactive component Name: ZTCR. 133
6 Data object name semantics . 133
Annex A (normative) Interpretation of mode and behaviour . 172
Annex B (normative) Local / Remote concept . 174
Annex C (informative) Deprecated logical node classes . 176
Annex D (informative) Relationship between this standard and IEC 61850-5 . 177
Annex E (informative) Algorithms used in logical nodes for automatic control . 178
Annex F (normative) Statistical calculation . 183
Annex G (normative) Functional relationship of data objects of autorecloser RREC . 189
Annex H (normative) SCL enumerations . 190
Bibliography . 196
Figure 1 – Overview of this standard . 12
Figure 2 – LOGICAL NODE relationships . 22
Figure E.1 – Example of curve based on an indexed gate position providing water flow . 178
Figure E.2 – Example of curve based on an indexed guide vane position (x axis) vs. net
head (y axis) giving an interpolated runner blade position (Z axis) . 179
Figure E.3 – Example of a proportional-integral-derivate controller . 180
Figure E.4 – Example of a power stabilisation system . 181
Figure E.5 – Example of a ramp generator . 181
Figure E.6 – Example of an interface with a set-point algorithm . 182
Figure F.1 – Statistical calculation of a vector . 184
Figure F.2 – Examples of statistical calculations . 187
Figure G.1 – Diagram of autorecloser function . 189
Table 1 – List of logical node groups . 20
Table 2 – Interpretation of logical node tables . 21
Table 3 – Relation between IEC 61850-5 and IEC 61850-7-4 for automatic control LNs . 29
Table 4 – Relation between IEC 61850-5 and IEC 61850-7-4 for control LNs . 35
Table 5 – Conditional attributes in FPID . 43
Table 6 – Relation between IEC 61850-5 and IEC 61850-7-4 for metering and
measurement LNs . 55
Table 7 – Relation between IEC 61850-5 and IEC 61850-7-4 (this standard) for protection LNs 68
Table 8 – Relation between IEC 61850-5 and IEC 61850-7-4 for protection related LN . 92
Table 9 – Relation between IEC 61850-5 and IEC 61850-7-4 for supervision and
monitoring LNs . 99
Table 10 – Description of data objects . 134
Table A.1 – Values of mode and behaviour . 172
Table A.2 – Definition of mode and behaviour . 173
Table B.1 – Relationship between Loc/Rem data objects and control authority . 175
Table D.1 – Relationship between IEC 61850-5 and this standard for some
miscellaneous LNs . 177
– 8 – IEC 61850-7-4:2010 IEC 2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
COMMUNICATION NETWORKS AND
SYSTEMS FOR POWER UTILITY AUTOMATION –
Part 7-4: Basic communication structure –
Compatible logical node classes and data object classes
FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61850-7-4 has been prepared by IEC technical committee 57:
Power systems management and associated information exchange.
This bilingual version (2018-07) corresponds to the English version published in 2010-03.
This second edition cancels and replaces the first edition published in 2003. It constitutes a
technical revision.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The major technical changes with regard to the previous edition are as follows:
• corrections and clarifications according to information letter "IEC 61850-technical issues by
the IEC TC 57” (see document 57/963/INF, 2008-07-18);
• extensions for new logical nodes for the power quality domain;
• extensions for the model for statistical and historical statistical data;
• extensions regarding IEC 61850-90-1 (substation-substation communication);
• extensions for new logical nodes for monitoring functions according to IEC 62271;
• new logical nodes from IEC 61850-7-410 and IEC 61850-7-420 of general interest.
The text of this standard is based on the following documents:
FDIS Report on voting
57/1045/FDIS 57/1051/RVD
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The content of this part of IEC 61850 is based on existing or emerging standards and
applications. In particular the definitions are based upon:
• the specific data objects types defined in IEC 60870-5-101 and IEC 60870-5-103;
• the common class definitions from the Utility Communication Architecture 2.0: Generic
Object Models for Substation and Feeder Equipment (GOMSFE) (IEEE TR 1550);
• CIGRE Report 34-03, Communication requirements in terms of data flow within substations,
December 1996.
A list of all parts of the IEC 61850 series under the general title Communication networks and
systems in substations can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
– 10 – IEC 61850-7-4:2010 IEC 2010
INTRODUCTION
This part of IEC 61850 is part of a set of standards, the IEC 61850 series. IEC 61850 defines
communication networks and systems for power utility automation, and more specially the
communication architecture for subsystems such as substation automation systems. The sum
of all subsystems may result also in the description of the communication architecture for the
overall power system management. The defined architecture provided in specific parts of
IEC 61850-7-x gives both a power utility specific data model and a substation domain specific
data model with abstract definitions of data objects classes and services independently from
the specific protocol stacks, implementations, and operating systems. The mapping of these
abstract classes and services to communication stacks is outside the scope of IEC 61850-7-x
and may be found in IEC 61850-8-x and in IEC 61850-9-x.
IEC 61850-7-1 gives an overview of the basic communication architecture to be used for all
applications in the power system domain. IEC 61850-7-3 defines common attribute types and
common data classes related to all applications in the power system domain. The attributes of
the common data classes may be accessed using services defined in IEC 61850-7-2. These
common data classes are used in this part to define the compatible data object classes.
To reach interoperability, all data objects in the data model need a strong definition with regard
to syntax and semantics. The semantics of the data objects is mainly provided by names
assigned to common logical nodes defined in this part and the data objects they contain, as
defined in this basic part, and dedicated logical nodes defined in domain specific parts such as
for hydro power control systems. Interoperability is easiest if as much as possible of the data
objects are defined as mandatory. Because of different approaches and technical features,
some data objects, especially settings, were declared as optional in this edition of the standard.
There are also data objects which were declared as conditional, i.e. they will become
mandatory under some well-defined conditions. After some experience has been gained with
this standard, this decision may be reviewed in the next edition of this part.
It should be noted that data objects with full semantics are only one of the elements required to
achieve interoperability. The standardized access to the data objects is defined in compatible,
power utility and domain specific services (see IEC 61850-7-2). Since data objects and
services are hosted by devices (IED), a proper device model is also needed. To describe both
the device capabilities and the interaction of the devices in the related system, a configuration
language is also needed, as defined in IEC 61850-6 by the substation configuration description
language (SCL).
The compatible logical node name and data object name definitions found in this part and the
associated semantics are fixed. The syntax of the type definitions of all data objects classes is
governed by abstract definitions provided in IEC 61850-7-2 and IEC 61850-7-3. Not all features
of logical nodes are listed in this part; for example, data sets and logs are covered in
IEC 61850-7-2.
COMMUNICATION NETWORKS AND
SYSTEMS FOR POWER UTILITY AUTOMATION –
Part 7-4: Basic communication structure –
Compatible logical node classes and data object classes
1 Scope
This part of IEC 61850 specifies the information model of devices and functions generally
related to common use regarding applications in systems for power utility automation. It also
contains the information model of devices and function-related applications in substations. In
particular, it specifies the compatible logical node names and data object names for
communication between intelligent electronic devices (IED). This includes the relationship
between logical nodes and data objects.
The logical node names and data object names defined in this document are part of the class
model introduced in IEC 61850-7-1 and defined in IEC 61850-7-2. The names defined in this
document are used to build the hierarchical object references applied for communicating with
IEDs in systems for power utility automation and, especially, with IEDs in substations and on
distribution feeders. The naming conventions of IEC 61850-7-2 are applied in this part.
To avoid private, incompatible extensions, this part specifies normative naming rules for
multiple instances and private, compatible extensions of logical node (LN) classes and data
object names. Any definition is based on IEC 61850 or on referenced well identified public
documents.
This part does not provide tutorial material. It is recommended to read parts IEC 61850-5
and IEC 61850-7-1 first, in conjunction with IEC 61850-7-3, and IEC 61850-7-2.
This standard is applicable to describe device models and functions of substation and feeder
equipment. The concepts defined in this standard are also applied to describe device models
and functions for:
• substation-to-substation information exchange,
• substation-to-control centre information exchange,
• power plant-to-control centre information exchange,
• information exchange for distributed generation,
• information exchange for distributed automation, or
• information exchange for metering.
Figure 1 provides a general overview of this standard. The groups of logical nodes defined in
th
...
Frequently Asked Questions
IEC 61850-7-4:2010 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes". This standard covers: IEC 61850-7-4:2010 specifies the information model of devices and functions generally related to common use regarding applications in systems for power utility automation. It also contains the information model of devices and function-related applications in substations. In particular, it specifies the compatible logical node names and data object names for communication between intelligent electronic devices (IED). This includes the relationship between logical nodes and data objects. Major technical changes with regard to the previous edition are as follows: - corrections and clarifications according to technical issues raised by the users' community; extensions for new logical nodes for the power quality domain; - extensions for the model for statistical and historical statistical data; - extensions regarding IEC 61850-90-1; - extensions for new logical nodes for monitoring functions according to IEC 62271; - new logical nodes from IEC 61850-7-410 and IEC 61850-7-420 of general interest. This publication is of core relevance for Smart Grid.
IEC 61850-7-4:2010 specifies the information model of devices and functions generally related to common use regarding applications in systems for power utility automation. It also contains the information model of devices and function-related applications in substations. In particular, it specifies the compatible logical node names and data object names for communication between intelligent electronic devices (IED). This includes the relationship between logical nodes and data objects. Major technical changes with regard to the previous edition are as follows: - corrections and clarifications according to technical issues raised by the users' community; extensions for new logical nodes for the power quality domain; - extensions for the model for statistical and historical statistical data; - extensions regarding IEC 61850-90-1; - extensions for new logical nodes for monitoring functions according to IEC 62271; - new logical nodes from IEC 61850-7-410 and IEC 61850-7-420 of general interest. This publication is of core relevance for Smart Grid.
IEC 61850-7-4:2010 is classified under the following ICS (International Classification for Standards) categories: 33.200 - Telecontrol. Telemetering. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 61850-7-4:2010 has the following relationships with other standards: It is inter standard links to IEC 61850-7-4:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC 61850-7-4:2010 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
제목: IEC 61850-7-4:2010 - 전력 공용 자동화를 위한 통신 네트워크 및 시스템 - 파트 7-4: 기본 통신 구조 - 호환되는 논리 노드 클래스 및 데이터 개체 클래스 내용: IEC 61850-7-4:2010은 일반적으로 전력 공용 자동화 시스템에 적용되는 기기 및 기능에 대한 정보 모델을 명시합니다. 또한, 이는 변전소에서의 기기 및 기능 관련 응용 프로그램에 대한 정보 모델도 포함하고 있습니다. 특히, 이는 지능형 전자 기기 (IED) 간의 통신을 위한 호환되는 논리 노드 이름과 데이터 개체 이름을 명시합니다. 이에는 논리 노드와 데이터 개체 간의 관계가 포함됩니다. 이전 버전과 비교하여 주요한 기술적 변경 사항은 다음과 같습니다: - 사용자 커뮤니티로부터 제기된 기술적 문제에 따른 수정 및 명확화; 전력 품질 도메인을 위한 새로운 논리 노드에 대한 확장; - 통계 및 기록 통계 데이터 모델에 대한 확장; - IEC 61850-90-1에 대한 확장; - IEC 62271에 따른 모니터링 기능을 위한 새로운 논리 노드에 대한 확장; - 일반적으로 관심이 있는 IEC 61850-7-410 및 IEC 61850-7-420에서의 새로운 논리 노드. 이 게시물은 스마트그리드에 핵심적인 중요성을 가지고 있습니다.
The article discusses the specifications of IEC 61850-7-4:2010, which is an international standard for communication networks and systems used in power utility automation. This standard defines the information model of devices and functions related to common use and applications in power utility systems. It also specifies the compatible logical node names and data object names for communication between intelligent electronic devices. The article mentions several technical changes in the new edition of the standard, including corrections and clarifications based on user feedback, additions for new logical nodes related to power quality and monitoring functions, and extensions for statistical and historical data models. The article highlights the importance of this standard in the context of Smart Grid systems.
記事のタイトル：IEC 61850-7-4:2010 - 電力公益事業の自動化のための通信ネットワークとシステム - 第7-4部：基本的な通信構造 - 互換性のある論理ノードクラスとデータオブジェクトクラス 記事内容：IEC 61850-7-4:2010は、電力公益事業の自動化システムにおける一般的な使用に関連するデバイスと機能の情報モデルを規定しています。また、変電所におけるデバイスと機能に関連する応用プログラムの情報モデルも含まれています。特に、インテリジェント電子機器（IED）間の通信に使用される互換性のある論理ノード名とデータオブジェクト名を指定しています。これには論理ノードとデータオブジェクトの関係も含まれます。前版と比較して、主な技術的な変更点は以下の通りです： - ユーザーコミュニティによって提起された技術的な問題に対する修正と明確化；電力品質領域に関連する新しい論理ノードの拡張； - 統計データと履歴統計データモデルの拡張； - IEC 61850-90-1に関する拡張； - IEC 62271に基づく監視機能のための新しい論理ノードの拡張； - 一般的に関心があるIEC 61850-7-410およびIEC 61850-7-420からの新しい論理ノード。 この記事はスマートグリッドにとって非常に重要です。
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