SIST EN 61850-7-410:2013

SLOVENSKI STANDARD
01-september-2013
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Communication networks and systems for power utility automation - Part 7-410:
Hydroelectric power plants - Communication for monitoring and control
Kommunikationsnetze und -systeme für die Automatisierung in der elektrischen
Energieversorgung - Teil 7-410: Wasserkraftwerke - Kommunikation für Überwachung,
Regelung und Steuerung
Réseaux et systèmes de communication pour l'automatisation des systèmes électriques
- Partie 7-410: Centrales hydroélectriques - Communication pour contrôle et commande
Ta slovenski standard je istoveten z: EN 61850-7-410:2013
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 61850-7-410
NORME EUROPÉENNE
January 2013
EUROPÄISCHE NORM
ICS 33.200 Supersedes EN 61850-7-410:2007

English version
Communication networks and systems for power utility automation -
Part 7-410: Basic communication structure -
Hydroelectric power plants -
Communication for monitoring and control
(IEC 61850-7-410:2012)
Réseaux et systèmes de communication Kommunikationsnetze und -systeme für
pour l'automatisation die Automatisierung in der elektrischen
des systèmes électriques - Energieversorgung -
Partie 7-410: Structure Teil 7-410: Wasserkraftwerke -
de communication de base - Kommunikation für Überwachung,
Centrales hydroélectriques - Regelung und Steuerung
Communication pour le contrôle- (IEC 61850-7-410:2012)
commande
(CEI 61850-7-410:2012)
This European Standard was approved by CENELEC on 2012-12-04. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61850-7-410:2013 E

Foreword
The text of document 57/1274/FDIS, future edition 2 of IEC 61850-7-410, prepared by IEC TC 57 "Power
systems management and associated information exchange" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN 61850-7-410:2013.

The following dates are fixed:
(dop) 2013-09-04
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-12-04

standards conflicting with the
document have to be withdrawn
This document supersedes EN 61850-7-410:2007.
410:2007:
a) The logical nodes in EN 61850-7-410:2007 that were not specific to hydropower plants have been
transferred to EN 61850-7-4:2010 and have been removed from this edition of EN 61850-7-410.
b) The definitions of logical nodes in this edition of EN 61850-7-410 have been updated using the format
introduced in EN 61850-7-4:2010.
c) Most of the modelling examples and background information that was included in EN 61850-7-
410:2007 has been transferred to IEC/TR 61850-7-510.
d) However, this edition of EN 61850-7-410 includes additional general-purpose logical nodes that were
not included in EN 61850-7-4:2010, but are required in order to represent the complete control and
monitoring system of a hydropower plant.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61850-7-410:2012 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 standards indicated:
IEC 61362 NOTE  Harmonized as EN 61362.
IEC 61850-10 NOTE  Harmonized as EN 61850-10.
IEC 61970-301 NOTE  Harmonized as EN 61970-301.
IEC 62270 NOTE  Harmonized as EN 62270.

- 3 - EN 61850-7-410:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC/TS 61850-2 - Communication networks and systems in - -
substations -
Part 2: Glossary
IEC 61850-7-1 - Communication networks and systems for EN 61850-7-1 -
power utility automation -
Part 7-1: Basic communication structure -
Principles and models
IEC 61850-7-2 2010 Communication networks and systems for EN 61850-7-2 2010
power utility automation -
Part 7-2: Basic information and
communication structure - Abstract
communication service interface (ACSI)

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
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
IEC 61850-7-410 ®
Edition 2.0 2012-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 33.200 ISBN 978-2-83220-436-8

– 2 – 61850-7-410  IEC:2012
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Abbreviated terms . 7
5 Logical node classes . 8
5.1 Logical node groups . 8
5.2 Interpretation of logical node tables . 9
5.3 Summary of logical nodes to be used in hydropower plants . 11
5.3.1 General . 11
5.3.2 Group A – Automatic functions . 11
5.3.3 Group F – Functional blocks . 11
5.3.4 Group H – Hydropower specific logical nodes . 11
5.3.5 Group I – Interface and archiving . 12
5.3.6 Group K – Mechanical and non-electrical primary equipment . 13
5.3.7 Group P – Protection functions . 13
5.3.8 Group R – Protection related functions . 13
5.3.9 Group S – Supervision and monitoring . 13
5.3.10 Group X – Switchgear . 13
5.4 Automatic control logical nodes LN group A . 13
5.4.1 Modelling remarks . 13
5.4.2 LN: Control mode selection Name: ACTM . 14
5.4.3 LN: Joint control Name: AJCL . 14
5.4.4 LN: PSS 4B filter function Name: APSF . 14
5.4.5 LN: PSS control, common information Name: APSS . 16
5.4.6 LN: PSS 2A/B filter function Name: APST . 17
5.5 Functional logical nodes LN Group F . 17
5.5.1 Modelling remarks . 17
5.5.2 LN: Functional heartbeat Name: FHBT . 18
5.5.3 LN: Scheduler Name: FSCH . 18
5.5.4 LN: Functional priority status Name: FXPS . 18
5.6 Hydropower specific logical nodes LN group H . 19
5.6.1 Modelling remarks . 19
5.6.2 LN: Turbine – generator shaft bearing Name: HBRG . 19
5.6.3 LN: Combinator Name: HCOM . 20
5.6.4 LN: Hydropower dam Name: HDAM . 20
5.6.5 LN: Deflector control Name: HDFL . 20
5.6.6 LN: Dam leakage supervision Name: HDLS . 21
5.6.7 LN: Electrical brake Name: HEBR . 21
5.6.8 LN: Governor control mode Name: HGOV . 21
5.6.9 LN: Gate position indicator Name: HGPI . 22
5.6.10 LN: Dam gate Name: HGTE . 22
5.6.11 LN: Intake gate Name: HITG . 23
5.6.12 LN: Joint control Name: HJCL. 23
5.6.13 LN: Leakage supervision Name: HLKG . 24
5.6.14 LN: Water level indicator Name: HLVL . 24

61850-7-410  IEC:2012 – 3 –
5.6.15 LN: Mechanical brake Name: HMBR . 25
5.6.16 LN: Needle control Name: HNDL . 25
5.6.17 LN: Water net head data Name: HNHD . 26
5.6.18 LN: Dam over-topping protection Name: HOTP . 26
5.6.19 LN: Hydropower / water reservoir Name: HRES . 27
5.6.20 LN: Hydropower unit sequencer Name: HSEQ . 27
5.6.21 LN: Speed monitoring Name: HSPD . 27
5.6.22 LN: Surge shaft Name: HSST . 28
5.6.23 LN: Guide vanes (wicket gate) Name: HTGV . 29
5.6.24 LN: Runner blades Name: HTRB . 29
5.6.25 LN: Trash rack Name: HTRK . 30
5.6.26 LN: Turbine Name: HTUR . 30
5.6.27 LN: Hydropower unit Name: HUNT . 31
5.6.28 LN: Valve (butterfly valve, ball valve) Name: HVLV . 32
5.6.29 LN: Water control Name: HWCL . 33
5.7 Logical nodes for interface and archiving LN group I . 34
5.7.1 Modelling remarks . 34
5.7.2 LN: Fire detection and alarm Name: IFIR . 34
5.7.3 LN: Hand interface  Name: IHND . 34
5.8 Logical nodes for mechanical and non-electric primary equipment LN group
K . 35
5.8.1 Modelling remarks . 35
5.8.2 LN: Heater, cubicle heater Name: KHTR . 35
5.9 Logical nodes for protection functions LN group P . 35
5.9.1 Modelling remarks . 35
5.9.2 LN: Rotor protection Name: PRTR . 35
5.10 Logical nodes for protection related functions LN group R . 36
5.10.1 Modelling remarks . 36
5.10.2 LN: Field breaker configuration Name: RFBC . 36
5.11 Logical nodes for supervision and monitoring  LN group S. 36
5.11.1 Modelling remarks . 36
5.11.2 LN: Supervision of media flow Name: SFLW . 36
5.11.3 LN: Supervision of media level Name: SLVL . 37
5.11.4 LN: Supervision of the position of a device Name: SPOS . 38
5.11.5 LN: Supervision media pressure Name: SPRS . 39
5.12 Logical nodes for switchgear LN group X . 41
5.12.1 Modelling remarks . 41
5.12.2 LN: Switching control for field flashing Name: XFFL . 41
6 Data name semantics . 41
7 Common data classes . 54
7.1 General . 54
7.2 Maintenance and operational tag (TAG) . 54
7.3 Operational restriction (RST) . 55
8 Data attribute semantics . 55
Bibliography . 59

Table 1 – Abbreviated terms . 8
Table 2 – List of logical node groups . 9

– 4 – 61850-7-410  IEC:2012
Table 3 – Interpretation of logical node tables . 10
Table 4 – Logical nodes for automatic functions . 11
Table 5 – Logical nodes representing functional blocks. 11
Table 6 – Hydropower specific logical nodes . 11
Table 7 – Logical nodes for interface and archiving . 12
Table 8 – Logical nodes for mechanical and non-electric primary equipment. 13
Table 9 – Logical nodes for protections. 13
Table 10 – Logical nodes for protection related functions . 13
Table 11 – Logical nodes for supervision and monitoring . 13
Table 12 – Logical nodes for switchgear . 13
Table 13 – PSS filter comparison . 16
Table 14 – Description of data . 41
Table 15 – Semantics of data attributes . 56

61850-7-410  IEC:2012 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMMUNICATION NETWORKS AND SYSTEMS
FOR POWER UTILITY AUTOMATION –

Part 7-410: Basic communication structure –
Hydroelectric power plants –
Communication for monitoring and control

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 61850-7-410 has been prepared by technical committee 57: Power
systems management and associated information exchange.
This second edition cancels and replaces the first edition published in 2007, and constitutes a
technical revision. This edition includes the following significant technical changes with
respect to the previous edition:
a) The logical nodes in IEC 61850-7-410:2007 that were not specific to hydropower plants
have been transferred to IEC 61850-7-4:2010 and have been removed from this edition of
IEC 61850-7-410.
b) The definitions of logical nodes in this edition of IEC 61850-7-410 have been updated
using the format introduced in IEC 61850-7-4:2010.
c) Most of the modelling examples and background information that was included in
IEC 61850-7-410:2007 has been transferred to IEC/TR 61850-7-510.

– 6 – 61850-7-410  IEC:2012
d) However, this edition of IEC 61850-7-410 includes additional general-purpose logical
nodes that were not included in IEC 61850-7-4:2010, but are required in order to represent
the complete control and monitoring system of a hydropower plant.
The text of this standard is based on the following documents:
FDIS Report on voting
57/1274/FDIS 57/1289/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all the parts in the IEC 61850 series, published under the general title
Communication networks and systems for power utility automation 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.
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.
61850-7-410  IEC:2012 – 7 –
COMMUNICATION NETWORKS AND SYSTEMS
FOR POWER UTILITY AUTOMATION –

Part 7-410: Basic communication structure –
Hydroelectric power plants –
Communication for monitoring and control

1 Scope
This part of IEC 61850 specifies the additional common data classes, logical nodes and data
objects required for the use of IEC 61850 in a hydropower plant.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC/TS 61850-2, Communication networks and systems in substations – Part 2: Glossary
IEC 61850-7-1, Communication networks and systems for power utility automation – Part 7-1:
Basic communication structure – Principles and models
IEC 61850-7-2:2010, Communication networks and systems for power utility automation –
Part 7-2: Basic information and communication structure – Abstract communication service
interface (ACSI)
IEC 61850-7-3:2010, Communication networks and systems for power utility automation –
Part 7-3: Basic communication structure for substations and feeder equipment – Common
data classes
IEC 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
3 Terms and definitions
For the purpose of this document, the terms and definitions given in IEC 61850-2 apply.
4 Abbreviated terms
The terms listed in Table 1 are used to build concatenated Data Object Names in this
document. IEC 61850-7-410 inherits all the abbreviated terms described in Clause 4 of
IEC 61850-7-4:2010.
NOTE Data Object Names in the logical nodes representing PSS filter functions follow names in IEEE 421.5 as
closely as possible. These names are not included in Table 1.

– 8 – 61850-7-410  IEC:2012
Table 1 – Abbreviated terms
Term Description Term Description
a
Act Action, activity, active, activate Lkg Leakage
Atr Actuator Lub Lubrication
BG Before Gain Man Manual (- operation selected)
Brg Bearing Mnt Maintenance
Brk Brake Ndl Needle (used in Pelton turbines)
Bt Heartbeat Nhd Net head
BtB Back-to-Back Nrm Normal
Cam Cam, e.g. rotating non-circular disk Nxt Next
a
Cap Capacity, capability Off Device disengaged (= off)
Cbr Calibration On Device applied (= on)
Cff coefficient Operate Operate order to any device
a
Cm Centimetres Opn
Open, opened, opening
Cmpl Completed, completion, complete Pe Electric power
Cnd Condenser, synchronous compensator Pmp Pump
Crl Correlation Polytr Polytropic
Crp Creeping, slow movement Prec Precondition, initial status
Cwb Crowbar Prt Priority
De Remove Psk Penstock
Deg Degrees, for angle indication in ˚ Pss PSS, power system stabiliser function
Dfl Deflector (used in Pelton turbines) Qu Queue
Dia Diaphragm Rb Runner blade
Dith Dither Reg Regulation
Dn Down, below, downstream, lowest Req Requested
Drtb Draft tube Rng Range
Droop Droop Rpt Repeat, repetition
Dtc Detection Rtg Rating, rated
Dvc Device Rwy Runaway, e.g. in runaway speed
Dw Delta Omega Saf Safety
a
Ena Sft Soft (as in soft start)
Enable, allow operation
Fa “Fire all” sequence (to thyristors) Shft Shaft
Fbc Field breaker configuration Sld Solidity
Fir Fire SM Servo, servo-motor
Flm Flame SNL Speed-no-load, connected but not generating
Flsh Flashing (e.g. field flashing) Spir Spiral
Flt Fault Srv Service
Flw Flow, flowing Stl Still, not moving
Fst Fast Stnd Stand, standing
Gdv Guide vane Syn Synchronous, synchronism
Grd Gradient Twt Tailwater, water level at outlet
Gte Gate, dam gate Tp Test Point
Hd Head Trb Turbine
Hwt Headwater, water level at intake Trg Trigger
Hys Hysteresis Unt Unit, production unit
I Intermediate Up Up, above, upstream, upper
J Joint Vsi Voltage stabilizer input
Lft Lifting, lift Vst Voltage stabilizer terminal (output)
a
Lo Low, lower (position)
Lkd Locked
a
Extended description of IEC 61850-7-4

5 Logical node classes
5.1 Logical node groups
Logical nodes are grouped together with nodes of similar or related functions having the same
first letter. Table 2 shows presently assigned letters, letters marked “reserved” may be used
in future extensions to the standard series. Names of logical nodes shall start with the letter of

61850-7-410  IEC:2012 – 9 –
the group to which the LN belongs. E.g. most of the logical nodes, defined in this document,
are specific for hydropower use and thus have names that start with the letter H.
Table 2 – List of logical node groups
A Automatic control functions
B Reserved
C Control functions
D Functions specific to distributed energy resources (DER)
E Reserved
F Logical nodes representing functional blocks
G Generic references
H Functions specific to hydropower plants
I Interface and archiving functions
J Reserved
K Kinetic energy, mechanical devices and equipment
L Physical devices and common logical nodes
M Metering and measurement
N Reserved
O Reserved
P Electrical protections
Q Power quality
R Protection related functions
S Supervision and monitoring
T Sensors and transmitters (including instrument transformers)
U Reserved
V Reserved
W Functions specific to wind power plants
X Switchgear
Y Power transformers
Z Power system equipment
5.2 Interpretation of logical node tables
The interpretation of the headings for the logical node tables is presented in Table 3.

– 10 – 61850-7-410  IEC:2012
Table 3 – Interpretation of logical node tables
Data Object Name Function of the Data Object
Common Data Class Common Data Class that defines the structure of the Data Object. See IEC 61850-7-3.
Explanation Short explanation of the data and how it is used.
Transient Data – the status of data with this designation is momentary and shall be logged
or reported to provide evidence of their momentary state. Some T may be only valid on a
T
modelling level. The TRANSIENT property of DATA only applies to BOOLEAN process
data attributes (FC=ST) of that DATA. Transient DATA is identical to normal DATA, except
that for the process state change from TRUE to FALSE no event may be generated for
reporting and for logging.
This column defines whether data, data sets, control blocks or services are mandatory (M)
or optional (O) for the instantiation of a specific logical node.

In some cases a data object can be instantiated; this is marked by “multi”, i.e. Omulti or
M/O
Mmulti. Instantiation shall be made by numbers 01 to 99, added directly after the data
object name. The part of the data object that is instatiated is marked by {inst} in the data
object explanation
The attributes for data that are instantiated may also be mandatory or optional based on
the CDC (Attribute Type) definition in IEC 61850-7-3.
Where the letter C is used for “conditional”, at least one of the items of data labelled with
C shall be used from each category where C occurs.

All data object names are listed alphabetically in Clause 8. Despite some overlapping, the
data in the logical node classes are grouped for the convenience of the reader into some of
the following categories.
Common logical node information
Common logical node information is information independent of the dedicated function
represented by the LN class. Mandatory data (M) are common to all LN classes; optional data
(O) are valid for a reasonable subset of LN classes.
Status information
Status information is data which shows either the status of the process or of the function
allocated to the LN class. This information is produced locally and cannot be changed
remotely unless substitution is applicable. Data such as “start” or “trip” are listed in this
category. Most of these data are mandatory. The data can only be read and not set from an
external source.
Settings
Settings are data which are needed for the function to operate. Since many settings are
dependent on the implementation of the function, only a commonly agreed minimum is
standardised. They may be changed remotely, but normally not very often. The setting can
not always be read back; whether it is possible or not depends on the data class used for the
setting.
Measured values
Measured values are analogue data measured from the process or calculated in the functions
such as currents, voltages, power, etc. This information is produced locally and cannot be
changed remotely unless substitution is applicable.
Controls
Controls are data which are changed by commands such as switchgear state (ON/OFF), tap
changer position or reset-able counters. They are typically changed remotely, and are
changed during operation much more than settings. Data objects under controls cannot be
read back.
61850-7-410  IEC:2012 – 11 –
5.3 Summary of logical nodes to be used in hydropower plants
5.3.1 General
This document specifies the compatible logical node classes to be used in hydropower plants
listed in Tables 4 to 12. For other logical node classes that might be of use also in
hydropower plants, see IEC 61850-7-4.
5.3.2 Group A – Automatic functions
Table 4 – Logical nodes for automatic functions
LN Class Description
ACTM Control mode selection. Overall LN for controllers with different possible modes.
AJCL Joint control function, to balance total power from different sources.
APSS PSS Control. Common information of a PSS function.
APST PSS 2A/B filter. Represents a filter according to IEEE 421.5-2005.
APSF PSS 4B filter. Represents a filter according to IEEE 421.5-2005.

5.3.3 Group F – Functional blocks
Table 5 – Logical nodes representing functional blocks
LN Class Description
FHBT Heart-beat. This LN represents the heart-beat function of a controlling device. I.e. the function used
to ensure that a specific device or program in a device is running.
FSCH Scheduler. This LN represents a task scheduler that will perform predefined tasks at given times.
FXPS Functional priority status. This LN is used to specify in which order devices should be started or
activated.
5.3.4 Group H – Hydropower specific logical nodes
Table 6 – Hydropower specific logical nodes
LN Class Description
HBRG Turbine – generator shaft bearing. This LN holds data pertaining to bearings, such as temperatures
and lubrication oil flows.
HCOM Combinator (3D-CAM or 2D-CAM), optimises the relation between net head, guide vanes and
runner blades. It is used in power plants with Kaplan turbines with moveable runner blades. The
combinatory function will also use the FCSD LN to hold the relation curves for different net heads.
HDAM Hydropower dam. A logical node that is used to represent the physical aspects of the dam.
HDFL Deflector control. This logical node represents the deflector control of a Pelton turbine
HDLS Dam leakage supervision. Represents a device that will supervise and give alarm in case of dam
leakage. The actual measurement can be based on water flow.
HEBR Electrical brake. This logical node represents an electrical brake system of a turbine.
HGPI Gate position indicator. A device that provides the position of a dam gate. The position is given
either as an angular displacement in case of sector gates or as distance from fully closed position
in case of straight gates. For aperture gates and valves where the position is given as percent of
full opening, either the HVLV or the SPOS logical nodes are recommended.
HGOV Governor control. A logical node that represents the overall control of a turbine governor and the
various control modes.
HGTE Dam gate. This LN is intended to hold information about the gate. It can also present a calculated
water flow through the gate, in which case the FCSD LN shall be included in the same logical
device, to provide the relations. Note that in this LN the position set-point is listed under Controls
instead of Settings. The normal way of controlling a gate is to send a position set-point.

– 12 – 61850-7-410  IEC:2012
LN Class Description
HITG Intake gate. This LN can be used to represent intake gates. The gates will almost never be placed
in any other position than fully closed or fully open. However to cater for step-wise or other
controls, the gate is normally provided with a number of position switches.
HJCL Power plant joint control function. In plants with more than one gate or several turbines, this LN will
represent the joint control function that is used to supervise the total water flow or to maintain a
constant water level. The LN shall be instantiated to provide one instance for each gate and each
turbine to be supervised.
HLKG Leakage supervision. This LN can be used to measure any leakage in the plant, it is more generic
than HDLS
HLVL Water level indicator. The LN represents the water level sensing device. The output is a distance
including an offset from a base level (commonly the distance above sea).
HMBR Mechanical brake for the generator shaft. This is a LN for the brake control. The brake is used for
stopping the unit during shut-down and to hold the shaft still, once the unit is stopped.
HNDL Needle control. A specialised LN that represents the control of needles in Pelton turbines.
HNHD Net head data. A LN that can be used to present the calculated net head data (difference between
upper and lower water levels) in a hydropower plant.
HOTP Dam overtopping protection. A protection function that will act by opening one or more gates in
case of a risk for overtopping the dam. The protection will sometimes include its own water
measurement device; hence an optional measured value for water level.
HRES Water reservoir. A logical node that is used to represent the logical function of a reservoir. If the
content is to be calculated, the FSCD LN shall be used to provide the relation between water level
and content.
HSEQ Start / stop sequencer. A simple LN that only presents what the sequencer is doing (inactive –
starting – stopping) and in case it is active, what step it is presently working on.
HSPD Speed monitoring. This LN is normally located in a stand-alone logical device, separated from but
monitoring the turbine governor. It will also act as a placeholder for various speed limits and set-
points used by the start sequencer and other control functions.
HSST Surge shaft or surge tank. A function that is used to mitigate pressure surges in the system.
HTGV Guide vanes (wicket gate). This logical node represents the physical device of guide vanes in a
hydropower turbine.
HTRB Runner blades. This logical node represents the physical device of runner blades in e.g. a Kaplan
turbine where the runner blades can be controlled.
HTRK Trash rack, used to prevent floating debris getting into the turbine.
HTUR Turbine. This logical node holds extended rating plate data for a turbine in a hydropower plant.
HUNT Hydropower production unit. This LN represents the physical device of the turbine and generator
combination in a hydropower plant. It is intended as an extended rating plate that allows temporary
settings of data. It also acts as a placeholder for the current operating conditions of the unit.
HVLV Valve. This logical node represents a large valve, e.g. a valve in a penstock, butterfly or ball type
valve.
HWCL Water control function. This LN will represent one physical device that can modify the water flow
though the plant, either a gate or a turbine. In case of a plant with a joint control function, the HJCL
LN will provide the flow set-point to be used by HWCL.

5.3.5 Group I – Interface and archiving
Table 7 – Logical nodes for interface and archiving
LN Class Description
IFIR Generic fire detection and alarm function.
IHND Generic physical human – machine interface. E.g. a push-button or another physical device that
can be used as input to a controller.

61850-7-410  IEC:2012 – 13 –
5.3.6 Group K – Mechanical and non-electrical primary equipment
Table 8 – Logical nodes for mechanical and non-electric primary equipment
LN Class Description
KHTR Heater. The LN represents a heater, cubicle heater or any other heater that can be controlled.

5.3.7 Group P – Protection functions
NOTE Most of the logical nodes that represent protective functions are defined in the substation part of the
document series.
Table 9 – Logical nodes for protections
LN Class Description
PRTR Rotor protection. Field short-circuit protection.

5.3.8 Group R – Protection related functions
Table 10 – Logical nodes for protection related functions
LN Class Description
RFBC Field breaker configuration.

5.3.9 Group S – Supervision and monitoring
Table 11 – Logical nodes for supervision and monitoring
LN Class Description
SFLW Media flow supervision. This logical node represents a generic media flow supervision system that
can provide alarm and trip signals. In an application, the LN shall be instantiated with one instance
per flow being measured.
SLEV Media level supervision. This logical node represents a generic level supervision system that can
provide alarm and trip signals. In an application, the LN shall be instantiated with one instance per
surface being measured.
SPOS Device position supervision. This logical node represents a generic position supervisio
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