SIST EN IEC 61850-7-410:2026
(Main)Communication networks and systems for power utility automation - Part 7-410: Basic communication structure - Hydroelectric power plants, steam and gas turbines - Logical node classes (IEC 61850-7-410:2026)
- Abstract
This part of IEC 61850 specifies the logical node classes for use in the domain of hydroelectric power stations, steam and gas turbines.
This IEC61850 domain information model standard utilizes the existing Logical Node (LN) classes defined in IEC 61850-7-4, Basic communication structure – Compatible logical node classes and data object classes where possible, while defining new and extended domain specific LN classes to provide the necessary data objects for application to functions and systems in the domain of hydroelectric power stations, steam and gas turbines. The domain information model includes the interface towards a central operator centre’s control functions.
The Scope of this document, related to steam and gas turbine specifics, is limited to overall control functions and generator and turbine control functions. For hydroelectric power, the scope includes the entire power station automation system.
Edition 3 is intended to form a basis for extensions in local implementations. Such extensions may be defined in profiles. Many of the Logical Nodes defined in this document are designed to be suitable for use in domains beyond the scope of hydro power plants and steam and gas turbines. A suggested structure of the Logical Nodes into packages for integration with other domains is provided in Annex G (informative), Migration of this document to the future edition of IEC 61850.
- Status
- Published
- Public Enquiry End Date
- 29-Apr-2025
- Publication Date
- 23-Sep-2026
- Technical Committee
- PSE - Power systems management
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 17-Sep-2026
- Due Date
- 22-Nov-2026
- Completion Date
- 24-Sep-2026
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SIST EN IEC 61850-7-410:2026 is the Slovenian adoption of EN IEC 61850-7-410:2026, published by SIST for IEC 61850 power utility automation. It specifies Logical Node (LN) classes for hydroelectric power stations, steam and gas turbines, and the data objects used to model assets, operational functions and management functions. Engineers, integrators and plant operators use it when they need a common information model for these generating plants, including the interface to central operator centre control functions.
What does SIST EN IEC 61850-7-410:2026 specify?
SIST EN IEC 61850-7-410:2026 specifies the LN classes for hydroelectric power stations, steam and gas turbines. It builds on IEC 61850-7-4 where possible, and adds domain-specific LN classes where the existing ones are not enough.
The document covers hydroelectric power stations as a full power station automation model. For steam and gas turbines, the scope is narrower and focuses on overall control plus generator and turbine control functions.
| Annex | What it covers |
|---|---|
| Annex C | Design concepts for the large power generation model, including links to IEC 61850-7-420 and IEC 61850-7-500 and the large-power-generation-specific concepts |
| Annex D | Supervision of a control task in the bottom layer and model breakdown of a complex system |
| Annex E | Model principles and requirements for operational and maintenance tagouts and restrictions |
| Annex F | Plant modelling, including multiple generating units, reservoirs in series, pumped storage and plant LN design concepts |
| Annex G | Migration of this document to the future edition of IEC 61850 |
| Annex ZA | Normative references to international publications and their corresponding European publications |
The document is organised from scope and references through modelling concepts, asset models, operational and management functions, then the LN catalogue and data semantics. In practice, that structure lets a project team move from plant architecture to actual IEC 61850 objects without switching documents.
What are the key requirements of SIST EN IEC 61850-7-410:2026?
SIST EN IEC 61850-7-410:2026 defines how to model large power generation facilities with IEC 61850 LN classes, how to structure the plant into layers, and how to name and use the data objects attached to those LNs. The main requirement is not a single formula or test method, but a consistent information model for plant automation.
Modelling structure and layers
Clause 5 introduces the modelling concepts for large power generation facilities, including stakeholders, information capabilities, profile enabling and a layered model. The model uses top, bottom and intermediate layers. In practice, this matters because it tells you where to place plant-level coordination, equipment-level actuation and the “glue” functions that sit between them.
Clause 5 also explains the interaction mechanisms between layers and between components within a layer. This is the part that helps system integrators decide how a setpoint, measurement or status moves through the automation structure.
Asset models and unit behaviour
Clause 6 defines the large power generation composition model and the unit state diagram. The unit state diagram is an extension of the state model in IEC 60545:2021, and it uses the operational state data object OpSt together with the command data object OpStCtl.
In practice, this gives a common state model for standstill, disconnected, generating, no load and other unit conditions. It also shows how steady states and transition states are represented, so the control system can distinguish between “target state requested” and “target state reached”.
Operational functions
Clause 7 divides operational functions into analogue control and state change. It defines patterns for setpoint handling, setpoint deviation alarm, control setpoint with upper and lower limits, and time targets for state transitions.
For an engineer, this means the document tells you how to model commands such as active power, reactive power, voltage, level or speed control, and how to show whether the actual value has reached the requested setpoint. It is particularly useful when one control function computes a setpoint for another function or when a transition must happen within a target time.
Management functions
Clause 8 defines management functions at joint control level, unit level and machine level, plus hydro device management. Table 10 maps these functions to LN classes such as HJCM, EJCM, HUMC, EUMC, HMMC, EGTM, ESTM and AEMC.
This matters in practice because management LNs decide how requests are prioritised and routed to operational functions. Clause 8 also uses reference data objects such as AstRef, WFunRef and DifWFunRef to link management functions to the assets and operational functions they supervise.
LN catalogue and data naming
Clause 9 specifies the LN classes for assets, management functions, operational functions, supporting functions, monitoring functions, control and supervision, primary equipment, functional blocks, generic function references, non-process interfaces, protections, supervision functions and transducers.
Clause 10 lists deprecated LN classes for backward compatibility only. Clause 11 defines data object name semantics and the enumerated data attribute types used across the model. Clause 12 defines common data classes for analogue settings, controls and DAEnums.
The practical effect is that names, classes and enumerations are standardised across implementations, which reduces custom naming and makes integration, profiling and testing easier to keep aligned.
Tagouts and restrictions
Annex E defines the principles and requirements for operational and maintenance tagouts and restrictions. This is important for plants that need a formal way to model lockout, tagout and similar operational constraints in the IEC 61850 information model.
What terms does SIST EN IEC 61850-7-410:2026 define?
SIST EN IEC 61850-7-410:2026 relies on IEC 61850-2 for terms and definitions, and it also uses many document-specific abbreviations. These are some of the most important ones for practical work:
- Logical Node (LN) - the basic IEC 61850 modelling element used here for assets, functions and management roles.
- Operational state (OpSt) - the data object that carries the current steady state of a unit.
- Operational state control (OpStCtl) - the command data object used to request a state change.
- Generating mode (GnMod) - the data object that identifies the operating mode while a unit is generating.
- Generating service (GnSvc) - the data object for special services such as line charging or house load.
- Asset reference (AstRef) - the reference data object used by management LNs to point to the assets they manage.
- Joint control for hydro power plant management (HJCM) - the LN for hydro plant-level coordination.
- Hydro device management (HHDM) - the LN for managing hydro devices such as gates and valves.
Who uses SIST EN IEC 61850-7-410:2026?
SIST EN IEC 61850-7-410:2026 is used by automation engineers, control system integrators and OEMs working on hydroelectric power stations, steam turbines and gas turbines. It is also relevant to utilities and plant operators that need a common IEC 61850 model for control, supervision and interoperability.
In practice, users apply it when they define LN profiles, map plant functions to IEC 61850 objects, specify setpoints and state transitions, or check whether a plant model fits the intended automation architecture. Quality managers and buyers can use it to judge whether a supplier’s model covers the right plant functions and whether the plant uses the same LN structure as other IEC 61850-based systems.
What changed in SIST EN IEC 61850-7-410:2026 from the previous edition?
SIST EN IEC 61850-7-410:2026 supersedes SIST EN 61850-7-410:2013 and SIST EN 61850-7-410:2013/A1:2016. The foreword identifies this publication as Edition 3, and Annex G provides migration guidance toward the future edition of IEC 61850.
Which standards are used with SIST EN IEC 61850-7-410:2026?
| Standard | What it contributes |
|---|---|
| IEC 60034:2022 | Rating and performance of rotating electrical machines |
| IEC 60041:1991 and IEC 60041:1991/COR1:1996 | Field acceptance tests for hydraulic turbines, storage pumps and pump-turbines |
| IEC 60050-351:2013 and IEC TS 61850-2:2019 | Control technology vocabulary and IEC 61850 glossary terms |
| IEC 60545:2021 | Commissioning and operation of hydraulic turbines, pump-turbines and storage pumps |
| IEC 61362:2024 | Specification guidance for hydraulic turbine governing systems |
| IEC TS 61850-1-2:2020 and AMD1:2022 | Guidance on extending IEC 61850 |
| IEC 61850-5:2013 and AMD1:2022 | Communication requirements for functions and device models |
| IEC 61850-7-1:2011 and AMD1:2020 | Principles and models for the IEC 61850 basic communication structure |
| IEC 61850-7-3:2010 and AMD1:2020 | Common data classes |
| IEC 61850-7-4:2010 and AMD1:2020 | Compatible logical node classes and data object classes |
| IEC 61850-7-6:2024 | Basic Application Profiles using IEC 61850 |
| IEC 61850-7-420:2021 | Logical nodes for distributed energy resources and distribution automation |
| IEC TR 61850-7-500:2017 | Modelling application functions and related concepts and guidelines for substations |
| ISO/IEC 81346 series | Structuring principles and reference designations |
| IEC 62270:2013 | Computer-based control for hydroelectric power plants |
| IEC 62361-103:2013 | Long-term interoperability and standard profiling |
| IEC/IEEE 63198-2775:2023 | Technical guidelines for smart hydroelectric power plants |
| IEC 63200:2021 | Extended SGAM smart energy grid reference architecture model |
| IEEE 421.1-2021 and IEEE 421.5-2016 | Excitation system definitions and models for synchronous machines |
| ANSI/ASSP Z244.1:2024 | Lockout, tagout and alternative hazardous-energy control methods |
Annex ZA links the international references to their corresponding European publications where applicable.
What does the SIST EN IEC 61850-7-410:2026 document contain?
SIST EN IEC 61850-7-410:2026 contains a large catalogue of LN classes, class diagrams and package diagrams for the full plant model. It also contains tables for published versions, normative abbreviations, deprecated abbreviations and management-function mapping, plus the lists of enumerations used to build data object names.
The figures show the layered architecture, top-layer and bottom-layer interactions, unit state machines, analogue control patterns, management behaviour, excitation system examples, hydro management examples, trip matrix examples and plant-modelling cases. That makes the document useful not only for implementation, but also for design reviews, profile definition, testing and system integration.
Annex E provides modelling principles for tagouts and restrictions, Annex F shows plant configuration cases such as multiple generating units, reservoirs in series and pumped storage, and Annex G shows how the model is intended to migrate toward the future IEC 61850 edition.
Relations
- Effective Date
- 01-Nov-2026
- Effective Date
- 01-Nov-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
- Effective Date
- 11-Aug-2026
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Frequently Asked Questions
SIST EN IEC 61850-7-410:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Communication networks and systems for power utility automation - Part 7-410: Basic communication structure - Hydroelectric power plants, steam and gas turbines - Logical node classes (IEC 61850-7-410:2026)". This standard covers: This part of IEC 61850 specifies the logical node classes for use in the domain of hydroelectric power stations, steam and gas turbines. This IEC61850 domain information model standard utilizes the existing Logical Node (LN) classes defined in IEC 61850-7-4, Basic communication structure – Compatible logical node classes and data object classes where possible, while defining new and extended domain specific LN classes to provide the necessary data objects for application to functions and systems in the domain of hydroelectric power stations, steam and gas turbines. The domain information model includes the interface towards a central operator centre’s control functions. The Scope of this document, related to steam and gas turbine specifics, is limited to overall control functions and generator and turbine control functions. For hydroelectric power, the scope includes the entire power station automation system. Edition 3 is intended to form a basis for extensions in local implementations. Such extensions may be defined in profiles. Many of the Logical Nodes defined in this document are designed to be suitable for use in domains beyond the scope of hydro power plants and steam and gas turbines. A suggested structure of the Logical Nodes into packages for integration with other domains is provided in Annex G (informative), Migration of this document to the future edition of IEC 61850.
This part of IEC 61850 specifies the logical node classes for use in the domain of hydroelectric power stations, steam and gas turbines. This IEC61850 domain information model standard utilizes the existing Logical Node (LN) classes defined in IEC 61850-7-4, Basic communication structure – Compatible logical node classes and data object classes where possible, while defining new and extended domain specific LN classes to provide the necessary data objects for application to functions and systems in the domain of hydroelectric power stations, steam and gas turbines. The domain information model includes the interface towards a central operator centre’s control functions. The Scope of this document, related to steam and gas turbine specifics, is limited to overall control functions and generator and turbine control functions. For hydroelectric power, the scope includes the entire power station automation system. Edition 3 is intended to form a basis for extensions in local implementations. Such extensions may be defined in profiles. Many of the Logical Nodes defined in this document are designed to be suitable for use in domains beyond the scope of hydro power plants and steam and gas turbines. A suggested structure of the Logical Nodes into packages for integration with other domains is provided in Annex G (informative), Migration of this document to the future edition of IEC 61850.
SIST EN IEC 61850-7-410:2026 is classified under the following ICS (International Classification for Standards) categories: 27.140 - Hydraulic energy engineering; 29.240.30 - Control equipment for electric power systems; 33.200 - Telecontrol. Telemetering. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 61850-7-410:2026 has the following relationships with other standards: It is inter standard links to SIST EN 61850-7-410:2013, SIST EN 61850-7-410:2013/A1:2016, SIST EN 61850-5:2013, SIST EN 61850-7-3:2011/A1:2020, SIST EN 61850-7-1:2012/A1:2020, SIST EN 62270:2005, SIST EN IEC 61850-7-420:2022, SIST EN 61850-7-4:2010/A1:2020, SIST EN IEC 61362:2024, SIST EN 60041:2001, SIST EN IEC 60545:2021, SIST EN 61850-7-1:2012, SIST EN 61850-7-3:2011, SIST EN 61850-7-4:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 61850-7-410:2026 is associated with the following European legislation: Standardization Mandates: M/490. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN IEC 61850-7-410:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2026
Nadomešča:
SIST EN 61850-7-410:2013
SIST EN 61850-7-410:2013/A1:2016
Komunikacijska omrežja in sistemi za avtomatizacijo uporabe električne energije -
7-410. del: Osnovna komunikacijska struktura - Hidroelektrarne, parne in plinske
turbine – Razredi logičnih vozlišč (IEC 61850-7-410:2026)
Communication networks and systems for power utility automation - Part 7-410: Basic
communication structure - Hydroelectric power plants, steam and gas turbines - Logical
node classes (IEC 61850-7-410:2026)
Kommunikationsnetze und -systeme für die Automatisierung in der elektrischen
Energieversorgung - Teil 7-410: Grundlegende Kommunikationsstruktur -
Wasserkraftwerke - Kommunikation für Überwachung, Regelung und Steuerung (IEC
61850-7-410:2026)
Réseaux et systèmes de communication pour l'automatisation des systèmes électriques
- Partie 7-410: Structure de communication de base - Centrales hydroélectriques -
Communication pour le contrôle-commande (IEC 61850-7-410:2026)
Ta slovenski standard je istoveten z: EN IEC 61850-7-410:2026
ICS:
27.140 Vodna energija Hydraulic energy engineering
29.240.30 Krmilna oprema za Control equipment for electric
elektroenergetske sisteme power systems
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61850-7-410
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2026
ICS 33.200 Supersedes EN 61850-7-410:2013; EN 61850-7-
410:2013/A1:2016
English Version
Communication networks and systems for power utility
automation - Part 7-410: Basic communication structure -
Hydroelectric power plants, steam and gas turbines - Logical
node classes
(IEC 61850-7-410:2026)
Réseaux et systèmes de communication pour Kommunikationsnetze und -systeme für die
l'automatisation des systèmes électriques - Partie 7-410: Automatisierung in der elektrischen Energieversorgung -
Structure de communication de base - Centrales Teil 7-410: Grundlegende Kommunikationsstruktur -
hydroélectriques - Communication pour le contrôle- Wasserkraftwerke - Kommunikation für Überwachung,
commande Regelung und Steuerung
(IEC 61850-7-410:2026) (IEC 61850-7-410:2026)
This European Standard was approved by CENELEC on 2026-08-20. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61850-7-410:2026 E
European foreword
The text of document 57/2885/FDIS, future edition 3 of IEC 61850-7-410, prepared by TC 57 "Power
systems management and associated information exchange" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 61850-7-410:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-09-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-09-30
document have to be withdrawn
This document supersedes EN 61850-7-410:2013 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61850-7-410:2026 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 61400-25-2 NOTE Approved as EN 61400-25-2
IEC 61850-6:2009 NOTE Approved as EN 61850-6:2010 (not modified)
IEC 61850-6:2009/AMD2:2024 NOTE Approved as EN 61850-6:2010/A2:2025 (not modified)
IEC 61850-10 NOTE Approved as EN 61850-10
IEC 61970-301 NOTE Approved as EN IEC 61970-301
IEC 62264-1:2013 NOTE Approved as EN 62264-1:2013 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60034 2022 Rotating electrical machines - Part 1: - -
Rating and performance
IEC 60041 1991 Field acceptance tests to determine the EN 60041 1994
hydraulic performance of hydraulic
turbines, storage pumps and pump-
turbines
+ corrigendum Mar. 1996 - -
IEC 60050-351 2013 International Electrotechnical Vocabulary - - -
Part 351: Control technology
IEC 60545 2021 Guidelines for commissioning and EN IEC 60545 2021
operation of hydraulic turbines, pump-
turbines and storage pumps
IEC 61362 2024 Guidelines to specification of hydraulic EN IEC 61362 2024
turbine governing systems
IEC/TS 61850-1-2 2020 Communication networks and systems for - -
power utility automation - Part 1-2:
Guideline on extending IEC 61850
+ A1 2022
IEC/TS 61850-2 2019 Communication networks and systems in - -
substations - Part 2: Glossary
IEC 61850-5 2013 Communication networks and systems for EN 61850-5 2013
power utility automation - Part 5:
Communication requirements for functions
and device models
IEC 61850-7-1 2011 Communication networks and systems for EN 61850-7-1 2011
power utility automation - Part 7-1: Basic
communication structure - Principles and
models
+ A1 2020 + A1 2020
IEC 61850-7-3 2010 Communication networks and systems for EN 61850-7-3 2011
power utility automation - Part 7-3: Basic
communication structure - Common data
classes
+ A1 2020 + A1 2020
IEC 61850-7-4 2010 Communication networks and systems for EN 61850-7-4 2010
power utility automation - Part 7-4: Basic
communication structure - Compatible
logical node classes and data object
classes
+ A1 2020 + A1 2020
IEC 61850-7-6 2024 Communication networks and systems for - -
power utility automation - Part 7-6:
Guideline for definition of Basic Application
Profiles (BAPs) using IEC 61850
IEC 61850-7-420 2021 Communication networks and systems for EN IEC 61850-7- 2021
power utility automation - Part 7-420: Basic 420
communication structure - Distributed
energy resources and distribution
automation logical nodes
IEC/TR 61850-7- 2017 Communication networks and systems for - -
500 power utility automation - Part 7-500: Basic
information and communication structure -
Use of logical nodes for modeling
application functions and related concepts
and guidelines for substations
ISO/IEC 81346 series Industrial systems, installations and - -
equipment and industrial products -
Structuring principles and reference
designations
IEC 62270 2013 Hydroelectric power plant automation - - -
Guide for computer-based control
IEC 62361-103 2013 Power systems management and - -
associated information exchange -
Interoperability in the long term - Part 103:
Standard profiling
IEC/IEEE 63198- 2023 Technical guidelines for smart - -
2775 hydroelectric power plant
IEC 63200 2021 Definition of extended SGAM smart energy - -
grid reference architecture model
IEEE 421.1-2021 - IEEE Standard Definitions for Excitation - -
Systems for Synchronous Machines
IEEE 421.5-2016 - IEEE Recommended Practice for - -
Excitation System Models for Power
System Stability Studies
ANSI/ASSP Z244.1 2024 The Control Of Hazardous Energy - - -
Lockout, Tagout, And Alternative Methods
IEC 61850-7-410 ®
Edition 3.0 2026-07
INTERNATIONAL
STANDARD
Communication networks and systems for power utility automation -
Part 7-410: Basic communication structure - Hydroelectric power plants, steam
and gas turbines - Logical node classes
ICS 33.200 ISBN 978-2-8327-1365-5
IEC 61850-7-410:2026-07(en)
IEC 61850-7-410:2026 © IEC 2026
CONTENTS
FOREWORD . 24
INTRODUCTION . 27
1 Scope . 28
1.1 General . 28
1.2 Published versions of the standard and related namespace names . 28
1.3 Identification of the Code Component(s) . 28
1.3.1 Identification of the namespace description . 28
1.4 Code Component distribution . 29
1.5 Application of the logical node classes . 30
2 Normative references . 30
3 Terms and definitions . 31
4 Abbreviated terms. 31
4.1 General . 31
4.2 Deprecated abbreviations . 44
5 Concepts and constructs for modelling large power generation domains . 46
5.1 Modelling concepts for large power generation facilities . 46
5.1.1 Overview . 46
5.1.2 Stakeholders . 48
5.1.3 Large power generation information capabilities . 49
5.1.4 Domain specificities, profile enabling . 49
5.1.5 Concept of class categories for large power generation . 50
5.1.6 Concept of a layered model for large power generation . 59
5.2 Top layer model and its components . 64
5.2.1 Generic large power generation model breakdown . 64
5.2.2 Interaction mechanisms between top layer components . 67
5.3 Bottom layer model and its components . 74
5.3.1 General. 74
5.3.2 Field layer . 74
5.3.3 Edge-control layer . 74
5.4 Intermediate layer . 76
6 Domain specific asset models . 78
6.1 Large power generation composition model . 78
6.1.1 General. 78
6.1.2 Mechanical rotating machine models . 79
6.1.3 Electrical rotating machine . 81
6.2 Unit state diagram . 82
7 Operational functions . 87
7.1 General . 87
7.2 Operational functions for analogue control . 87
7.2.1 Information processing patterns in analogue control . 87
7.2.2 Setpoint handler and associated data objects . 92
7.2.3 Setpoint deviation alarm . 92
7.2.4 Utilization of a data object for control setpoint, upper limit, and lower
limit . 93
7.2.5 Specifications for individual operational functions . 94
7.3 Operational functions for state change . 96
IEC 61850-7-410:2026 © IEC 2026
7.3.1 General. 96
7.3.2 Issuing state transition commands regardless of asset state . 97
7.3.3 Time target for operational state transition . 97
8 Management functions . 98
8.1 General . 98
8.2 Joint control level management . 99
8.3 Unit level management and machine level management . 100
8.3.1 General. 100
8.3.2 Selection and processing of requests according to priorities . 101
8.3.3 Analogue control management . 103
8.3.4 State change management . 107
8.4 Hydro device management . 109
9 Logical node classes (LogicalNodes_7_410) . 112
9.1 General . 112
9.2 Logical nodes for assets (Assets_7_410) . 113
9.2.1 General. 113
9.2.2 <> LN: Electrical rotating machine Name:
ElectricalRotatingMachineLN. 117
9.2.3 <> LN: Synchronous machine excitation Name:
ExcitationSystemLN . 119
9.2.4 <> LN: Hydropower control Name: HydroControlLN . 120
9.2.5 <> LN: Hydropower non control Name: HydroNonControlLN . 122
9.2.6 <> LN: Rotating machine bearing Name: MachineBearingLN . 123
9.2.7 <> LN: Prime mover - generator transmission system Name:
MechTransmissionLN . 124
9.2.8 <> LN: On-off controllable asset Name:
OnOffControlAssetLN . 125
9.2.9 <> LN: Open-closed-related controllable assets Name:
OpenClosedControlAssetLN . 127
9.2.10 <> LN: Basic asset operating mode LN Name:
BasicAssetOpModeLN . 128
9.2.11 <> LN: Clutch system Name: ClutchLN. 129
9.2.12 <> LN: Machine deceleration Name: DecelerationLN . 131
9.2.13 LN: Synchronous machine field Name: HSMF . 132
9.2.14 LN: Shaft seal system Name: HSSL . 133
9.2.15 LN: Surge shaft/tank Name: HSST . 135
9.2.16 LN: Guide vanes (wicket gate) Name: HTGV . 136
9.2.17 LN: Runner blades Name: HTRB . 138
9.2.18 LN: Trash rack Name: HTRK . 140
9.2.19 LN: Hydro prime mover - generator transmission system Name: HTRM. 141
9.2.20 LN: Turbine Name: HTUR . 142
9.2.21 <> LN: Unit asset LN Name: PowerGenerationUnitLN . 146
9.2.22 <> LN: Rotating machine LN Name: RotatingMachineLN . 148
9.2.23 <> LN: Shaft seal LN Name: ShaftSealLN. 150
9.2.24 <> LN: Synchronous machine field Name:
SynchMachineFieldLN . 151
9.2.25 <> LN: Thermal turbine Name: ThermalTurbineLN . 152
9.2.26 <> LN: Hydro operating device LN Name:
HydroOperatingDeviceLN . 154
9.2.27 LN: Turbine generator shaft bearing Name: EBRG . 156
IEC 61850-7-410:2026 © IEC 2026
9.2.28 LN: Clutch system for thermal power units Name: ECTH . 157
9.2.29 LN: Synchronous machine excitation for thermal power unit Name:
EEXT . 158
9.2.30 LN: Fuel control valve Name: EFCV . 159
9.2.31 LN: Electrical rotating machine (synchronous/asynchronous generator)
for thermal power units Name: EGEN . 161
9.2.32 LN: Thermal governor Name: EGOV . 163
9.2.33 LN: Gas turbine unit Name: EGTU . 164
9.2.34 LN: Steam control valve Name: ESCV . 166
9.2.35 LN: Synchronous machine field Name: ESMF . 167
9.2.36 LN: Shaft seal system Name: ESSL . 169
9.2.37 LN: Steam turbine unit Name: ESTU . 170
9.2.38 LN: Turning-gear system Name: ETGR . 172
9.2.39 LN: Thermal prime mover - generator transmission system Name:
ETRM . 173
9.2.40 LN: Thermal power unit Name: EUNT . 174
9.2.41 LN: Turbine - generator shaft bearing Name: HBRG . 177
9.2.42 LN: Waterway canal Name: HCNL . 178
9.2.43 LN: Crest spillway Name: HCSW . 179
9.2.44 LN: Clutch system for hydro power units Name: HCTH . 180
9.2.45 LN: Braking (counter) nozzle Name: HCTN . 181
9.2.46 LN: Hydropower dam Name: HDAM . 183
9.2.47 LN: Deflector Name: HDFL . 184
9.2.48 LN: Synchronous machine excitation for hydro power unit Name:
HEXT. 186
9.2.49 LN: Electrical rotating machine (synchronous/asynchronous generator,
motor or motorgenerator) for hydro power units Name: HGEN . 187
9.2.50 LN: Hydro governor Name: HGOV . 188
9.2.51 LN: Hydropower gate Name: HGTE . 190
9.2.52 LN: Mechanical brake Name: HMBR . 192
9.2.53 LN: Needle Name: HNDL . 193
9.2.54 LN: Penstock Name: HPSK . 196
9.2.55 LN: Pony motor starter Name: HPYM . 197
9.2.56 LN: Hydropower water reservoir Name: HRES. 198
9.2.57 LN: Hydro power unit LN Name: HUNT . 199
9.2.58 LN: Hydropower valve Name: HVLV . 203
9.3 Logical nodes for management functions (ManagementFunctions_7_410) . 205
9.3.1 General. 205
9.3.2 <> LN: Electrical aspects management function Name:
ElectricityMgmtFunLN . 207
9.3.3 <> LN: Generating unit management function LN Name:
GeneratingUnitMgmtFunLN . 212
9.3.4 <> LN: Mechanical machine management function
LN Name: MechanicalMachineMgmtFunLN . 215
9.3.5 <> LN: Joint control for power management Name:
JointControlMgmtFunLN . 216
9.3.6 <> LN: Bulk generation management function LN Name:
BulkGenerationMgmtFunLN . 220
9.3.7 <> LN: Thermal machine management function Name:
ThermalMachineMgmtFunLN . 221
9.3.8 LN: Electrical rotating machine management Name: AEMC . 226
IEC 61850-7-410:2026 © IEC 2026
9.3.9 LN: Gas turbine management Name: EGTM . 229
9.3.10 LN: Joint control for thermal power plant management Name: EJCM . 232
9.3.11 LN: Steam turbine management Name: ESTM. 235
9.3.12 LN: Thermal unit management Name: EUMC . 239
9.3.13 LN: Hydro machine management Name: HMMC . 243
9.3.14 LN: Management function for hydro device (gates, valves) Name:
HHDM. 247
9.3.15 LN: Joint control for hydro power plant management Name: HJCM . 251
9.3.16 LN: Hydro unit management Name: HUMC . 256
9.4 Logical nodes for operational functions (OperationalFunctions_7_410) . 260
9.4.1 General. 260
9.4.2 <> LN: Active power operational function LN Name:
ActivePowerOpFunLN . 266
9.4.3 <> LN: Analogue control operational function LN Name:
AnalogueControlOpFunLN . 269
9.4.4 <> LN: Operational function for bulk generation LN Name:
BulkGenerationOpFunLN . 273
9.4.5 <> LN: Electrical operation function LN Name:
ElectricalOpFunLN . 274
9.4.6 <> LN: Energy operational function LN Name:
EnergyOpFunLN . 276
9.4.7 <> LN: Excitation operational function LN Name:
ExcitationOpFunLN . 278
9.4.8 <> LN: Flow for thermal power operational function
LN Name: FlowForThermalPowerOpFunLN . 279
9.4.9 <> LN: Hydro operational function LN Name:
HydroOpFunLN . 282
9.4.10 <> LN: Level operational function LN Name: LevelOpFunLN. 284
9.4.11 <> LN: Mechanical operational function LN Name:
MechanicalOpFunLN . 286
9.4.12 <> LN: Opening operational function LN Name:
OpeningOpFunLN . 288
9.4.13 <> LN: Operational transition operational function Name:
OperationalTransitionOpFunLN . 290
9.4.14 <> LN: Power factor operational function LN Name:
PowerFactorOpFunLN . 292
9.4.15 <> LN: Power system stabilisation operational function
LN Name: PowerSystemStabilisationOpFunLN . 294
9.4.16 <> LN: Pressure operational function LN Name:
PressureOpFunLN . 297
9.4.17 <> LN: Reactive power operational function LN Name:
ReactivePowerOpFunLN . 299
9.4.18 <> LN: Speed operational function LN Name:
SpeedOpFunLN . 301
9.4.19 <> LN: State change operational function LN Name:
StateChangeOpFunLN. 303
9.4.20 <> LN: Temperature operational function LN Name:
TemperatureOpFunLN . 305
9.4.21 <> LN: Thermal operational function LN Name:
ThermalOpFunLN . 307
9.4.22 <> LN: Voltage operational function LN Name:
VoltageOpFunLN . 309
9.4.23 <> LN: Water flow operational function LN Name:
WaterFlowOpFunLN . 311
IEC 61850-7-410:2026 © IEC 2026
9.4.24 LN: Switching control for electrical braking Name: AEBR . 313
9.4.25 LN: Energy control operational function Name: AENC . 314
9.4.26 LN: Minimum energy limitation operational function Name: AENN . 316
9.4.27 LN: Maximum energy limitation operational function Name: AENX . 318
9.4.28 LN: State/mode control for electric rotating machine Name: AESC . 320
9.4.29 LN: Field current regulation operational function Name: AFCR . 322
9.4.30 LN: Switching control for field flashing Name: AFFL . 324
9.4.31 LN: Field voltage regulation operational function Name: AFVR. 325
9.4.32 LN: Overexcitation limitation operational function Name: AOEL . 327
9.4.33 LN: Minimum opening limitation operational function Name: AOMN . 329
9.4.34 LN: Maximum opening limitation operational function Name: AOMX . 331
9.4.35 LN: Opening control operational function Name: AOPC . 333
9.4.36 LN: Power factor control operational function Name: APFC . 335
9.4.37 LN: Power factor limitation operational function Name: APFL . 337
9.4.38 LN: PSS 4 filter function Name: APSF . 339
9.4.39 LN: PSS 2 filter function Name: APST . 347
9.4.40 LN: Reactive power control operational function Name: AQCL . 352
9.4.41 LN: Minimum reactive power limitation operational function Name:
AQMN. 354
9.4.42 LN: Maximum reactive power limitation operational function Name:
AQMX . 356
9.4.43 LN: Balancing reserve operation Name: AROP . 358
9.4.44 LN: Stator current limitation operational function Name: ASCL . 360
9.4.45 LN: Minimum speed limitation operational function Name: ASMN . 362
9.4.46 LN: Maximum speed limitation operational function Name: ASMX . 364
9.4.47 LN: Speed control operational function Name: ASPC . 366
9.4.48 LN: Under excitation limitation operational function Name: AUEL . 368
9.4.49 LN: Flux limitation operational function Name: AVFL . 370
9.4.50 LN: Minimum voltage limitation operational function Name: AVMN . 371
9.4.51 LN: Maximum voltage limitation operational function Name: AVMX . 373
9.4.52 LN: Voltage control operational function Name: AVOC . 375
9.4.53 LN: Active power control operational function Name: AWGC . 377
9.4.54 LN: Minimum active power limitation operational function Name:
AWMN . 380
9.4.55 LN: Maximum active power limitation operational function Name:
AWMX . 382
9.4.56 LN: Flow control operational function for thermal power Name: EFLC . 384
9.4.57 LN: Minimum flow limitation operational function for thermal
power Name: EFMN . 385
9.4.58 LN: Maximum flow limitation operational function for thermal
power Name: EFMX . 387
9.4.59 LN: Load range transition of thermal unit operational function Name:
ELRC. 389
9.4.60 LN: Minimum pressure limitation operational function Name: EPMN . 391
9.4.61 LN: Maximum pressure limitation operational function Name: EPMX . 392
9.4.62 LN: Pressure control operational function Name: EPRC . 394
9.4.63 LN: Minimum temperature limitation operational function Name: ETMN . 396
9.4.64 LN: Maximum temperature limitation operational function Name: ETMX . 398
9.4.65 LN: State/mode control for thermal turbine and governor Name: ETSC . 400
9.4.66 LN: Temperature control operational function Name: ETPC . 402
IEC 61850-7-410:2026 © IEC 2026
9.4.67 LN: State/mode control for thermal unit Name: EUSC . 404
9.4.68 LN: Flow control operational function (hydropower) Name: HFLC . 405
9.4.69 LN: Minimum flow limitation operational function (hydropower) Name:
HFMN . 407
9.4.70 LN: Maximum flow limitation operational function (hydropower) Name:
HFMX . 409
9.4.71 LN: Minimum level limitation operational function Name: HLMN . 411
9.4.72 LN: Maximum level limitation operational function Name: HLMX . 413
9.4.73 LN: Level control operational function Name: HLVC . 415
9.4.74 LN: State/mode control for hydro turbine and governor Name: HTSC . 418
9.4.75 LN: State/mode control for hydro unit Name: HUSC . 419
9.5 Logical nodes for supporting functions (SupportingFunctions_7_410) . 421
9.5.1 General. 421
9.5.2 LN: Control mode selection Name: ACTM . 421
9.5.3 LN: Combinator Name: HCOM . 422
9.5.4 LN: Needle management Name: HNDM . 424
9.5.5 LN: Hydropower sequencer Name: HSEQ . 425
9.6 Logical nodes for monitoring functions (MonitoringFunctions_7_410) . 426
9.6.1 General. 426
9.6.2 <> LN: Machine speed monitoring Name:
MachineSpeedMonitoringLN. 427
9.6.3 LN: Thermal turbine speed monitoring Name: ESPD . 429
9.6.4 LN: Extension to the MFLW LN Name: MFLWExt . 431
9.6.5 LN: Leakage supervision Name: HLKG . 433
9.6.6 LN: Water level indicator Name: HLVL. 434
9.6.7 LN: Water net head data Name: HNHD . 435
9.6.8 LN: Hydro turbine speed monitoring Name: HSPD . 436
9.7 Logical nodes for control and supervision (ControlSupervision_7_410) . 438
9.7.1 General. 438
9.7.2 <> LN: Controller function Name: ControllerLN . 439
9.7.3 <> LN: On-Off controller function Name: OnOffControllerLN . 440
9.7.4 <> LN: Open close controller function Name:
OpenCloseControllerLN . 441
9.7.5 LN: Fan controller Name: CFAN . 443
9.7.6 LN: Fluidic valve controller Name: CFVL. 444
9.7.7 LN: Directly actuated hydraulic cylinder controller Name: CHCY . 446
9.7.8 LN: Heater controller Name: CHTR . 447
9.7.9 LN: Pump controller Name: CPMP . 448
9.7.10 LN: Turning gear controller Name: CTGR . 450
9.7.11 LN: Directly actuated valve controller Name: CVLV . 451
9.8 Logical nodes for primary equipment (PrimaryEquipment_7_410) . 452
9.8.1 General. 452
9.8.2 <> LN: Controllable equipment Name: ControlEqLN . 453
9.8.3 <> LN: Non-controllable equipment Name: NonControlEqLN . 454
9.8.4 <> LN: On-off controllable equipment Name:
OnOffControlEqLN . 455
9.8.5 <> LN: On-off non-controllable equipment Name:
OnOffNonControlEqLN . 456
9.8.6 <> LN: Position-related controllable equipment Name:
OpenClosedControlEqLN . 457
IEC 61850-7-410:2026 © IEC 2026
9.8.7 <> LN: Position-related non-controllable equipment Name:
OpenClosedNonControlEqLN . 459
9.8.8 LN: Brake pad Name: KBRP . 460
9.8.9 LN: Clutch Name: KCTH . 461
9.8.10 LN: Deflector Name: KDFL . 462
9.8.11 LN: Extension to the KFAN LN Name: KFANExt . 463
9.8.12 LN: Extension to the KFIL LN Name: KFILExt. 464
9.8.13 LN: Fluid sealing device (seal) Name: KFSL . 466
9.8.14 LN: Fluid valve Name: KFVL . 467
9.8.15 LN: Gate Name: KGTE . 468
9.8.16 LN: Penstock burst protection Name: KPBP . 469
9.8.17 LN: Extension to the KPMP LN Name: KPMPExt . 471
9.8.18 LN: Mechanical rotational speed protection Name: KSPP . 472
9.8.19 LN: Hydraulic cylinder Name: KHCY. 473
9.8.20 LN: Heater Name: KHTR . 474
9.8.21 LN: Turning-gear Name: KTGR . 476
9.8.22 LN: Guide vane (wicket gate) Name: KTGV. 477
9.8.23 LN: Extension to the KTNK LN Name: KTNKExt . 478
9.8.24 LN: Runner blade Name: KTRB . 479
9.8.25 LN: Extension to the KVLV LN Name: KVLVExt . 480
9.8.26 LN: Valve seal Name: KVSL . 482
9.8.27 LN: Synchronous machine armature (stator) Name: ZSMA . 483
9.8.28 LN: Synchronous machine field (rotor) Name: ZSMF . 484
9.8.29 LN: Semi-conductor uncontrolled rectifier Name: ZSUR . 485
9.9 Logical nodes for functional blocks (FunctionalBlocks_7_410) . 486
9.9.1 General. 486
9.9.2 LN: Deadband filter Name: FDBF . 487
9.9.3 LN: Functional heart beat Name: FHBT . 488
9.9.4 LN: Trip matrix Name: FMTX . 489
9.9.5 LN: Functional priority status Name: FXPS . 491
9.10 Logical nodes for generic function references (GenericFunctionRefs_7_410) . 492
9.10.1 General. 492
9.10.2 LN: Generic restriction tag Name: GRST . 493
9.10.3 LN: Generic lockout/tagout for maintenance and/or operation Name:
GTMO. 494
9.10.4 LN: Task manager Name: GTSK . 496
9.11 Logical nodes for interfacing and archiving (NonProcessInterfaces_7_410) . 497
9.11.1 General. 497
9.11.2 LN: Fire detection and alarm Name: IFIR . 497
9.11.3 LN: Hand interface Name: IHND . 498
9.11.4 <> LN: Alarm trip control Name: AlarmTripControlLN . 500
9.12 Logical nodes for protections of power plants (Protections_7_410) . 501
9.12.1 General. 501
9.12.2 LN: Detection of under impedance Name: PTUI . 502
9.13 Logical nodes for supervision and monitoring (SupervisionFunctions_7_410) . 503
9.13.1 General. 503
9.13.2 <> LN: Media supervision Name: MediaSupervisionLN . 505
9.13.3 LN: Brake pad supervision Name: SBRP . 507
9.13.4 LN: Electrical conductivity in water supervision Name: SECW . 508
...