EN IEC 61850-7-410:2026

• Status: Not Published
• Publication Date: 10-Sep-2026
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: CLC/TC 57 - Power systems management and associated information exchange
• Drafting Committee: IEC/TC 57 - IEC_TC_57
• Current Stage: 5060 - Voting results sent to TC, SR - Formal Approval
• Start Date: 13-Mar-2026
• Completion Date: 13-Mar-2026
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: kSIST FprEN IEC 61850-7-410:2026 - Communication networks and systems for power utility automation - Part 7-410: Basic communication structure - Hydroelectric power plants - Communication for monitoring and control

• Refers: IEC 60050-351:2013 - International Electrotechnical Vocabulary (IEV) - Part 351: Control technology
• Effective Date: 11-Aug-2026
• Refers: IEC TS 61850-2:2003 - Communication networks and systems in substations - Part 2: Glossary
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-1:2011/A1:2020 - Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-1:2011 - Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models
• Effective Date: 11-Aug-2026
• Refers: EN 62270:2004 - Hydroelectric power plant automation - Guide for computer-based control
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-3:2011 - Communication networks and systems for power utility automation - Part 7-3: Basic communication structure - Common data classes
• Effective Date: 11-Aug-2026
• Refers: EN 60041:1994 - Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
• Effective Date: 11-Aug-2026
• Refers: EN IEC 61850-7-420:2021 - Communication networks and systems for power utility automation - Part 7-420: Basic communication structure - Distributed energy resources and distribution automation logical nodes
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-4:2010 - Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
• Effective Date: 11-Aug-2026
• Refers: EN 61850-5:2013 - Communication networks and systems for power utility automation - Part 5: Communication requirements for functions and device models
• Effective Date: 11-Aug-2026
• Refers: EN IEC 61362:2024 - Guidelines to specification of hydraulic turbine governing systems
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-4:2010/A1:2020 - Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
• Effective Date: 11-Aug-2026
• Refers: EN IEC 60545:2021 - Guidelines for commissioning and operation of hydraulic turbines, pump-turbines and storage pumps
• Effective Date: 11-Aug-2026
• Refers: EN 61850-7-3:2011/A1:2020 - Communication networks and systems for power utility automation - Part 7-3: Basic communication structure - Common data classes
• Effective Date: 11-Aug-2026
• Revises: EN 61850-7-410:2013 - Communication networks and systems for power utility automation - Part 7-410: Basic communication structure - Hydroelectric power plants - Communication for monitoring and control
• Effective Date: 28-Sep-2021

Overview

EN 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 is a European standard developed by CLC. It establishes a comprehensive communication framework for the automation of power utility systems, focusing specifically on hydroelectric power plants, steam turbines, and gas turbines. The standard defines logical node (LN) classes essential for monitoring, control, management, and supervision within these facilities.

By aligning with the IEC 61850 series, this standard supports interoperability and integration in digital power plants, enabling operators to standardize communication between various devices and systems involved in electricity generation.

Key Topics

• Logical Node Classes: Detailed structure and classification of logical nodes tailored for hydro, steam, and gas power plant components.
• Modelling Power Generation: Concepts and constructs for information models suitable for large power generation domains.
• Control and Supervision: Logical nodes for real-time monitoring, control, and operational management of plant components and equipment.
• Layered Model Approach: Use of abstraction layers (field, edge-control, intermediate, top) to model plant control architectures.
• Hydroelectric and Thermal Specifics: Domain-specific extensions for hydropower and thermal plants, covering everything from penstocks and governors to turbine controls and reservoir management.
• Management and Operational Functions: Support for functions like excitation, energy limitation, power factor regulation, flow control, and braking.
• Device Representation: Logical nodes representing both controllable and non-controllable primary equipment such as valves, seals, gates, and shafts.

Applications

Implementing EN IEC 61850-7-410:2026 in power utility automation delivers practical value in several key areas:

• Interoperable System Integration: By using standardized logical node definitions, diverse automation equipment from different manufacturers can seamlessly communicate and integrate.
• Advanced Monitoring and Control: Operators can achieve fine-grained supervision and remote control over critical components, improving system reliability and responsiveness.
• Scalable Plant Automation: The layered model supports the automation needs of both individual units (e.g., a single turbine) and complex, large-scale generation facilities.
• Digital Transformation: Facilitates the upgrade of legacy systems to modern digital infrastructures, setting the stage for smart grid adoption and remote operation.
• Streamlined Maintenance: Standardized data models simplify diagnostics, event logging, and maintenance planning, reducing downtime and increasing operational efficiency.
• Cybersecurity and Compliance: Adhering to internationally recognized standards ensures a higher degree of security, traceability, and compliance with regulatory requirements.

Related Standards

EN IEC 61850-7-410:2026 is closely related to other international standards supporting communication and automation in power systems:

• IEC 61850-7-4: Core definitions and specifications for logical nodes in power utility automation.
• IEC 61850 Series: The broader series covers general communication protocols, substation automation, mapping to communication profiles, and conformance testing.
• IEC 61362: Relevant for turbine governors and hydroelectric-specific components.
• IEEE 421.1: Pertains to excitation systems, a key aspect addressed in logical node classes for power plant automation.

For power utilities, engineers, system integrators, and manufacturers, adopting EN IEC 61850-7-410:2026 ensures future-proof integration, digitalization, and efficient operation of hydroelectric, steam, and gas turbine power plants through standardized communication networks and logical node modeling.

SLOVENSKI STANDARD
oSIST prEN IEC 61850-7-410:2025
01-april-2025
Komunikacijska omrežja in sistemi za avtomatizacijo uporabe električne energije -
7-410. del: Osnovna komunikacijska struktura - Hidroelektrarne - Komunikacije za
nadzorovanje in krmiljenje
Communication networks and systems for power utility automation - Part 7-410: Basic
communication structure - Hydroelectric power plants - Communication for monitoring
and control
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
Ta slovenski standard je istoveten z: prEN IEC 61850-7-410:2025
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)
oSIST prEN IEC 61850-7-410:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61850-7-410:2025

oSIST prEN IEC 61850-7-410:2025
57/2750/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61850-7-410 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-02-07 2025-05-02
SUPERSEDES DOCUMENTS:
57/2640/CD, 57/2666/CC
IEC TC 57 : POWER SYSTEMS MANAGEMENT AND ASSOCIATED INFORMATION EXCHANGE
SECRETARIAT: SECRETARY:
Germany Mr Heiko Englert
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 4
ASPECTS CONCERNED:
Digital content,Electricity transmission and distribution
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to
be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses.
(SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Communication networks and systems for power utility automation - Part 7-410: Basic communication
structure - Hydroelectric power plants - Communication for monitoring and control

PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 61850-7-410:2025

oSIST prEN IEC 61850-7-410:2025
UML from trabalho.eap
EA.Interop.dll 934
(for tool version used, see custom properties in the generated doc)
“template_IEC61850_7_410_Ed.3.0_CDV.docx”

Document history
Name of Document received Brief description of the Document sent
intervening changes introduced

person
From Date To Date
G. Rigadello 2023-10-26 TC57 WG18 meeting Kista (S) WG18
T. Otani Basic structure of document according to what
decided in Itaipu meeting Spring 2023
Creation of Clause §5 and Annexes A to D for
Ed. 3.0 CD2
M. Mendes 2023-11-01 2023-11-07 Editorial revision and formatting. WG18
E. Wejander 2024-12-09 2024-12-09 Editorial revision of foreword and the general WG18 2024-12-09
information.
M. Mendes 2024-01-01 2024-12-19 Edition of existing classes. Implementation of WG18 2024-12-19
new abstract and concrete classes. Edition and
creation of enumerations and derived CDCs.
Edition and creation of diagrams. New packages:
Logical Nodes for Components, Logical Nodes
for Control and Supervision, Logical Nodes for
Management Functions, Logical Nodes for
Operational Functions, Logical Nodes for
Primary Equipment.
Generated from
oSIST prEN IEC 61850-7-410:2025
IEC CDV 61850-7-410 © IEC 2025 – 1 – 57/2750/CDV

CONTENTS
FOREWORD . 12
INTRODUCTION . 15
1. Scope . 16
1.1 General . 16
1.2 Data model Namespace name and version . 16
1.3 Data model Namespace Code Component distributionThe Code Components
are in light and full version: . 17
1.4 Application of the logical node classes . 17
2. Normative references . 18
3. Terms and definitions . 18
4. Abbreviated terms . 19
5. Concepts and constructs for modelling large power generation domain . 32
5.1 Modelling concepts for large power generation facilities . 32
5.1.1 Introduction . 32
5.1.2 Stakeholders . 33
5.1.3 Large power generation information capabilities . 34
5.1.4 Concept of a layered model for large power generation . 35
5.1.4.1 Modelling approach applied to power station control
structures . 35
5.1.5 Domain specificities, profile enabling . 40
5.2 Generation operational model and its components (top layer) . 40
5.2.1 General . 40
5.2.2 Editorial rules . 40
5.2.2.1 Specific marks for machine level names . 40
5.2.2.2 Graphical convention for UML inheritance and references to
IEC 61850-7-4 . 40
5.2.2.3 Colour coding for top layer related LN classes and
instances . 41
5.2.3 Main principles for top layer modelling approach . 41
5.2.3.1 Generic large power generation model breakdown . 41
5.2.4 Management model . 45
5.2.4.1 Overview of management capabilities . 45
5.2.4.2 Different type of setpoints applying to the management
function . 45
5.2.5 Domain resource model . 48
5.2.6 Operational functions model . 49
5.2.7 Interaction mechanisms between top layer components . 49
5.2.7.1 Handling of computed setpoints . 49
5.2.7.2 Interaction between a ResourceLN and its Domain
Resource LNs . 49
5.2.7.3 Interactions between management function LN and
operational functions LN . 51
5.2.7.3.1 Introduction . 51
5.2.7.3.2 Priority handling . 51
5.2.7.3.3 Interactions through forcing resource limit for its
electrical behaviour . 51

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5.2.7.3.4 Interactions through setting individual resource
electrical behaviour . 53
5.3 Bottom layer model and its components . 54
5.3.1 Field layer . 54
5.3.2 Edge-control layer . 55
5.3.2.1 Measurements . 55
5.3.2.2 Controls (Actuation) . 55
5.3.2.3 Process supervision . 55
5.3.2.3.1 Process measurement supervision . 56
5.3.2.3.2 Actuation supervision . 56
5.4 Intermediate layer . 57
6. Management functions of different components . 58
6.1 LNs related to generation components . 58
6.1.1 Excitation (s. IEEE 421.1) . 58
6.2 LNs related to hydroelectric components . 58
6.2.1 Joint controller (electrical and hydraulic) . 58
6.2.2 Governors (s. IEC 61362) . 58
7. Operational functions. 58
7.1 Generation operational functions . 58
7.1.1 Excitation functions . 58
7.2 Hydroelectric-specific operational functions . 58
7.2.1 Joint controller (electrical and hydraulic) . 58
7.2.2 Governor functions . 58
8. Domain specific models in the Intermediate and Bottom layers . 58
8.1 LNs related to hydroelectric intermediate layer . 58
8.2 LNs related to hydroelectric bottom layer . 58
8.2.1 Indirect measurement LNs . 58
9. Logical node classes . 58
9.1 General . 58
9.2 Classes list . 60
9.3 Abbreviated Terms 7-410 (Abbreviations_7_410) . 75
9.3.1 General . 75
9.3.2 Classes list . 75
9.3.3 7-410 Abbreviated Terms (AbbrTerm_7_410 abbreviation enumeration) . 75
9.4 7-410 Logical Nodes for Components (Components_7_410) . 76
9.4.1 General . 76
9.4.2 Classes list . 79
9.4.3 <> LN: On-off controllable component  Name:
OnOffControlCmpLN . 82
9.4.4 <> LN: Machine deceleration  Name: DecelerationLN . 83
9.4.5 LN: Clutch system  Name: GCTH . 85
9.4.6 <> LN: Shaft seal LN  Name: ShaftSealLN . 86
9.4.7 LN: Shaft seal system  Name: ESSL . 87
9.4.8 LN: Shaft seal system  Name: HSSL . 88
9.4.9 LN: Prime mover - generator transmission system  Name: GTRM . 90
9.4.10 LN: Gas turbine unit  Name: EGTU . 91
9.4.11 LN: Steam turbine unit  Name: ESTU . 92

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9.4.12 <> LN: Thermal turbine  Name: ThermalTurbineLN . 94
9.4.13 LN: Deflector  Name: HDFL . 96
9.4.14 LN: Hydro governor  Name: HGOV . 97
9.4.15 LN: Hydropower gate  Name: HGTE . 99
9.4.16 <> LN: Intake gate  Name: HITG . 102
9.4.17 LN: Mechanical brake  Name: HMBR . 103
9.4.18 LN: Needle  Name: HNDL . 105
9.4.19 <> LN: Basic component operating mode LN  Name:
BasicCmpOpModeLN . 107
9.4.20 LN: Guide vanes (wicket gate)  Name: HTGV . 109
9.4.21 LN: Runner blades  Name: HTRB . 111
9.4.22 LN: Turbine  Name: HTUR . 112
9.4.23 LN: Hydropower valve  Name: HVLV . 115
9.4.24 <> LN: Gate  Name: GateLN . 117
9.4.25 <> LN: Hydropower control  Name: HydroControlLN . 119
9.4.26 <> LN: Valve  Name: ValveLN . 121
9.4.27 <> LN: Hydropower non control  Name: HydroNonControlLN . 123
9.4.28 LN: Waterway canal  Name: HCNL . 124
9.4.29 LN: Crest spillway  Name: HCSW . 125
9.4.30 LN: Penstock  Name: HPSK . 126
9.4.31 <> LN: Turbine operating device LN  Name:
TurbineOperatingDeviceLN . 127
9.4.32 LN: Braking (counter) nozzle  Name: HCTN . 129
9.4.33 <> LN: Position-related controllable components  Name:
OpnClsControlCmpLN . 130
9.4.34 LN: Turning-gear system  Name: ETGR . 132
9.4.35 LN: Pony motor starter  Name: HPYM . 133
9.4.36 <> LN: On-Off non controllable components  Name:
OnOffNonControlCmpLN . 134
9.4.37 LN: Synchronous machine field  Name: GSMF . 135
9.4.38 <> LN: Rotating machine LN  Name: RotatingMachineLN . 137
9.4.39 <> LN: Unit component LN  Name: UnitLN . 138
9.4.40 LN: Thermal power unit  Name: EUNT . 140
9.4.41 LN: Hydro power unit LN  Name: HUNT . 142
9.4.42 LN: Electrical rotating machine (synchronous/asynchronous generator,
motor, motorgenerator)  Name: GGEN . 144
9.4.43 LN: Synchronous machine excitation  Name: GEXT . 146
9.5 7-410 Logical Nodes for Control and Supervision
(ControlSupervision_7_410) . 147
9.5.1 General . 147
9.5.2 Classes list . 148
9.5.3 <> LN: Controller function  Name: ControllerLN . 149
9.5.4 <> LN: On-Off controller function  Name: OnOffControllerLN . 150
9.5.5 <> LN: Open close controller function  Name:
OpnClsControllerLN . 151
9.5.6 LN: Fan controller  Name: CFAN . 153
9.5.7 LN: Fluidic valve controller  Name: CFVL . 154
9.5.8 LN: Directly actuated hydraulic cylinder controller  Name: CHCY . 155
9.5.9 LN: Heater controller  Name: CHTR . 157

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9.5.10 LN: Pump controller  Name: CPMP . 158
9.5.11 LN: Turning gear controller  Name: CTGR . 159
9.5.12 LN: Directly actuated valve controller  Name: CVLV . 160
9.6 7-410 Logical Nodes for Management Functions
(ManagementFunctions_7_410) . 161
9.6.1 General . 161
9.6.2 Classes list . 162
9.6.3 LN: Joint control for power management  Name: AJCL . 164
9.6.4 LN: Joint control for water management  Name: HJCL . 168
9.6.5 <> LN: Management function LN  Name: MgmtFctLN . 172
9.6.6 LN: Gas turbine governor management  Name: EGGM . 173
9.6.7 LN: Steam turbine governor management  Name: ESGM . 177
9.6.8 LN: Hydro governor management  Name: HGMC . 179
9.6.9 LN: Thermal unit management  Name: EUMC . 181
9.6.10 LN: Hydro unit management  Name: HUMC . 186
9.6.11 LN: Management function for hydro device (gates, valves)  Name:
HHDM . 190
9.6.12 <> LN: Generating unit management function LN  Name:
GeneratingUnitMgmtFctLN. 193
9.6.13 <> LN: Governor management function LN  Name:
GovernorMgmtFctLN . 198
9.6.14 LN: Synchronous machine excitation management  Name: AEMC . 199
9.7 7-410 Logical Nodes for Operational Functions
(OperationalFunctions_7_410) . 201
9.7.1 General . 201
9.7.2 Classes list . 206
9.7.3 LN: Switching control for field flashing  Name: AFFL. 211
9.7.4 LN: Minimum active power limitation operational function  Name:
AWMN . 212
9.7.5 LN: Minimum presssure limitation operational function  Name: EPMN . 214
9.7.6 LN: Maxiimum pressure limitation operational function  Name: EPMX . 216
9.7.7 LN: Pressure control operational function  Name: EPRC . 218
9.7.8 LN: Minimum temperature limitation operational function  Name: ETMN . 220
9.7.9 LN: Maximum temperature limitation operational function  Name: ETMX . 222
9.7.10 LN: Balancing reserve operation  Name: AROP . 224
9.7.11 LN: PSS control, common information  Name: APSS . 226
9.7.12 <> LN: Electrical operation function LN  Name:
ElectricalOpFctLN . 228
9.7.13 <> LN: Active power operationa function LN  Name:
ActivePowerOpFctLN . 230
9.7.14 LN: Maximum speed limitation operational function  Name: ASMX . 233
9.7.15 LN: Temperature control operational function  Name: ETPC . 235
9.7.16 LN: Switching control for electrical braking  Name: AEBR . 237
9.7.17 <> LN: Analog control operational function LN  Name:
AnalogControlOpFctLN . 238
9.7.18 <> LN: Power generation connection operational
function  Name: ConnectionOpFctLN . 241
9.7.19 <> LN: Operational transition operational function  Name:
OperationalTransitionOpFctLN. 243
9.7.20 LN: Speed control operational function  Name: ASPC . 244

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9.7.21 LN: Connect/disconnect operational function for the thermal generation
unit  Name: ECDC . 246
9.7.22 LN: Connect/disconnect operational function for the hydro generation
unit  Name: HCDC . 247
9.7.23 LN: Operational transitoin of thermal unit operational function  Name:
EOSC . 249
9.7.24 LN: Operational transitoin of hydro unit operational function  Name:
HOSC . 250
9.7.25 <> LN: Energy operational function LN  Name:
EnergyOpFctLN . 251
9.7.26 <> LN: Excitation operational function LN  Name:
ExcitationOpFctLN . 254
9.7.27 <> LN: Voltage operational function LN  Name:
VoltageOpFctLN . 255
9.7.28 LN: Energy control operational function  Name: AENC . 257
9.7.29 LN: Miniimum energy limitation operational function  Name: AENN . 259
9.7.30 LN: Power factor control operational function  Name: APFC . 261
9.7.31 LN: Minimum power factor limitation operational function  Name: APFN . 263
9.7.32 LN: Maximum power factor limitation operational function  Name: APFX . 265
9.7.33 LN: Reactive power control operational function  Name: AQCL . 267
9.7.34 LN: Minimum reactive power limitation operational function  Name:
AQMN . 269
9.7.35 LN: Maximum reactive power limitation operational function  Name:
AQMX . 271
9.7.36 LN: Stator current limitation operational function  Name: ASCL . 273
9.7.37 LN: Minimum speed limitation operational function  Name: ASMN . 275
9.7.38 LN: Under excitation limitation operational function  Name: AUEL . 276
9.7.39 LN: Flux limitation operational function  Name: AVFL . 278
9.7.40 LN: Minimum voltage limitation operational function  Name: AVMN . 280
9.7.41 LN: Maximum active power limitation operational function  Name:
AWMX . 282
9.7.42 LN: Active power control operational function  Name: AWGC . 284
9.7.43 <> LN: State change operational function LN  Name:
StateChangeOpFctLN . 286
9.7.44 <> LN: Operational function for bulk generation LN  Name:
BulkGenerationOpFctLN . 287
9.7.45 <> LN: Power factor operational function LN  Name:
PowerFactorOpFctLN . 288
9.7.46 <> LN: Reactive power operational function LN  Name:
ReactivePowerOpFctLN . 291
9.7.47 <> LN: Thermal operational function LN  Name:
ThermalOpFctLN . 293
9.7.48 <> LN: Pressure operational function LN  Name:
PressureOpFctLN . 295
9.7.49 <> LN: Temperature operational function LN  Name:
TemperatureOpFctLN . 297
9.7.50 <> LN: Flow for thermal power operational function
LN  Name: FlowForThermalPowerOpFctLN. 299
9.7.51 <> LN: Hydro operational function LN  Name: HydroOpFctLN . 301
9.7.52 <> LN: Water flow operational function LN  Name:
WaterFlowOpFctLN . 303
9.7.53 <> LN: Level operational function LN  Name: LevelOpFctLN . 305

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9.7.54 <> LN: Mechanical operational function LN  Name:
MechanicalOpFctLN . 308
9.7.55 <> LN: Open close operational function LN  Name:
OpenCloseOpFctLN . 310
9.7.56 <> LN: Speed operational function LN  Name:
SpeedOpFctLN . 312
9.7.57 LN: Maximum energy limitation operational function  Name: AENX . 315
9.7.58 LN: Field current regulation operational function  Name: AFCR . 317
9.7.59 LN: Field voltage reguration operational function  Name: AFVR . 318
9.7.60 LN: Over excitation limitation operational function  Name: AOEL . 320
9.7.61 LN: Minimum opening limitation operational function  Name: AOMN . 322
9.7.62 LN: Maximum opening limitation operational function  Name: AOMX . 324
9.7.63 LN: Opening control operational function  Name: AOPC . 326
9.7.64 LN: Flow control operational function (hydropower)  Name: HFLC . 328
9.7.65 LN: Minimum flow limitation operational function (hydropower)  Name:
HFMN . 331
9.7.66 LN: Maximum flow limitation operational function (hydropower)  Name:
HFMX . 332
9.7.67 LN: Minimum level limitation operational function  Name: HLMN . 334
9.7.68 LN: Maximum level limitation operational function  Name: HLMX . 336
9.7.69 LN: Level control operational function  Name: HLVC . 338
9.8 7-410 Logical Nodes for Primary Equipment (PrimaryEquipment_7_410) . 340
9.8.1 General . 340
9.8.2 Classes list . 341
9.8.3 <> LN: Controllable equipment  Name: ControlEqLN . 342
9.8.4 <> LN: Non-controllable equipment  Name: NonControlEqLN . 343
9.8.5 <> LN: On-off controllable equipment  Name:
OnOffControlEqLN . 344
9.8.6 <> LN: On-off non-controllable equipment  Name:
OnOffNonControlEqLN . 346
9.8.7 <> LN: Position-related controllable equipment  Name:
OpnClsControlEqLN . 347
9.8.8 <> LN: Position-related non-controllable equipment  Name:
OpnClsNonControlEqLN . 348
9.8.9 LN: Brake pad  Name: KBRP . 349
9.8.10 LN: Clutch  Name: KCTH . 350
9.8.11 LN: Deflector  Name: KDFL . 351
9.8.12 LN: Fluid sealing device (seal)  Name: KFSL . 352
9.8.13 LN: Fluid valve  Name: KFVL . 354
9.8.14 LN: Gate  Name: KGTE . 355
9.8.15 LN: Hydraulic cylinder  Name: KHCY . 356
9.8.16 LN: Heater  Name: KHTR . 357
9.8.17 LN: Turning-gear  Name: KTGR . 359
9.8.18 LN: Guide vane (wicket gate)  Name: KTGV . 360
9.8.19 LN: Runner blade  Name: KTRB . 361
9.8.20 LN: Valve seal  Name: KVSL . 362
9.9 Logical nodes for automatic control (LNGroupA_7_410) . 364
9.9.1 General . 364
9.9.2 Classes list . 366

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9.9.3 LN: Control mode selection  Name: ACTM . 366
9.9.4 LN: PSS 4 filter function  Name: APSF . 367
9.9.5 LN: PSS 2 filter function  Name: APST . 372
9.10 Logical nodes for control (LNGroupC_7_410). 375
9.11 Logical nodes for thermal power (LNGroupE_7_410) . 375
9.11.1 General . 375
9.11.2 Classes list . 376
9.11.3 LN: Thermal turbine speed monitoring  Name: ESPD . 377
9.11.4 LN: Block coordination function  Name: EBCF . 379
9.11.5 LN: Fuel control valve  Name: EFCV . 380
9.11.6 LN: Steam control valve  Name: ESCV . 381
9.11.7 <> LN: Thermal control valve  Name: ThermalValveLN . 383
9.12 Logical nodes for functional blocks (LNGroupF_7_410) . 384
9.12.1 General . 384
9.12.2 Classes list . 385
9.12.3 LN: Deadband filter  Name: FDBF. 386
9.12.4 LN: Functional heart beat  Name: FHBT . 387
9.12.5 LN: Trip matrix  Name: FMTX . 388
9.12.6 <> LN: Task manager  Name: FTSK . 390
9.12.7 LN: Functional priority status  Name: FXPS . 391
9.13 Generic logical nodes for hydro and thermal power plants
(LNGroupG_7_410) . 392
9.13.1 General . 392
9.13.2 Classes list . 393
9.13.3 LN: Task manager  Name: GTSK . 394
9.13.4 LN: Generic restriction tag  Name: GRST . 395
9.13.5 LN: Generic lockout/tagout for maintenance and/or operation  Name:
GTMO . 396
9.13.6 <> LN: Generic production unit  Name: GUNT . 397
9.14 Logical nodes for hydro power plants (LNGroupH_7_410) . 399
9.14.1 General . 399
9.14.2 Classes list . 401
9.14.3 <> LN: Brake  Name: BrakeLN . 403
9.14.4 <> LN: Leakage level supervision  Name:
LeakageLevelSupervisionLN . 404
9.14.5 <> LN: turbine  Name:
SomethingTurbineLN . 405
9.14.6 <> LN: Turbine speed monitoring  Name:
TurbineSpeedMonitoringLN . 407
9.14.7 LN: Turbine generator shaft bearing  Name: HBRG . 408
9.14.8 LN: Combinator  Name: HCOM . 409
9.14.9 LN: Hydropower dam  Name: HDAM . 410
9.14.10 <> LN: Electrical brake  Name: HEBR . 411
9.14.11 <> LN: Gate position indicator  Name: HGPI . 412
9.14.12 LN: Leakage supervision (general)  Name: HLKG . 414
9.14.13 LN: Water level indicator  Name: HLVL . 415
9.14.14 LN: Needle management  Name: HNDM . 416
9.14.15 LN: Water net head data  Name: HNHD . 417
9.14.16 <> LN: Dam over-topping protection  Name: HOTP . 419

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IEC CDV 61850-7-410 © IEC 2025 – 8 – CDV 61850-7-410 Ed. 3.0 © IEC 2024

9.14.17 LN: Hydropower water reservoir  Name: HRES . 420
9.14.18 LN: Hydropower sequencer  Name: HSEQ . 421
9.14.19 LN: Hydro turbine speed monitoring  Name: HSPD . 423
9.14.20 LN: Surge shaft  Name: HSST . 425
9.14.21 LN: Trash rack  Name: HTRK . 427
9.14.22 <> LN: Water control  Name: HWCL . 428
9.15 Logical nodes for interfacing and archiving (LNGroupI_7_410). 430
9.15.1 General . 430
9.15.2 Classes list . 430
9.15.3 LN: Fire detection and alarm  Name: IFIR . 431
9.15.4 LN: Hand interface   Name: IHND . 432
9.15.5 <> LN: Alarm trip control  Name: AlarmTripControlLN . 434
9.16 Logical nodes for mechanical and non-electric primary equipment
(LNGroupK_7_410) . 435
9.16.1 General . 435
9.16.2 Classes list . 435
9.16.3 LN: Bearing information  Name: KBRG . 435
9.16.4 LN: Brake pad  Name: KPAD . 436
9.16.5 LN: Penstock burst protection  Name: KPBP . 437
9.16.6 LN: Mechanical rotational speed protection  Name: KSPP . 439
9.17 Logical nodes for metering and measurement (LNGroupM_7_410) . 440
9.17.1 General . 440
9.17.2 Classes list . 440
9.17.3 <> LN: Three phases related electric measurement
extension  Name: MMXUExt . 441
9.18 Logical nodes for protections of power plants (LNGroupP_7_410) . 443
9.18.1 General . 443
9.18.2 Classes list . 443
9.18.3 LN: Detection of under impedance  Name: PTUI . 443
9.19 Logical nodes for protection related functions (LNGroupR_7_410) . 444
9.19.1 General . 444
9.19.2 Classes list . 445
9.19.3 <> LN: Field breaker configuration  Name: RFBC . 445
9.20 Logical nodes for supervision and monitoring (LNGroupS_7_410) . 446
9.20.1 General . 446
9.20.2 Classes list . 447
9.20.3 LN: Supervision of electrical conductivity in water  Name: SECW . 448
9.20.4 LN: Supervision of media flow  Name: SFLW . 449
9.20.5 LN: Supervision of media level  Name: SLVL . 451
9.20.6 LN: Supervision of the position of a device  Name: SPOS . 453
9.20.7 <> LN: Media supervision  Name: MediaSupervisionLN . 456
9.21 Logical nodes for transducers and instrument transformers
(LNGroupT_7_410) . 458
9.21.1 General . 458
9.21.2 Classes list . 459
9.21.3 LN: Measurement of electrical conductivity in water  Name: TECW . 459
9.22 Logical nodes for switchgear (LNGroupX_7_410) . 460
9.22.1 General . 460

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IEC CDV 61850-7-410 © IEC 2025 – 9 – 57/2750/CDV

9.22.2 Classes list .
...