EN 61400-25-2:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sistemi generatorjev vetrne turbine - 25-2. del: Komunikacije za spremljanje in nadzor vetrnih elektrarn - Informacijski modeliEolienne - Partie 25-2: Communications pour la surveillance et la commande des centrales éoliennes - Modèles d’informationWind turbines - Part 25-2: Communications for monitoring and control of wind power plants - Information models27.180Sistemi turbin na veter in drugi alternativni viri energijeWind turbine systems and other alternative sources of energyICS:Ta slovenski standard je istoveten z:EN 61400-25-2:2015SIST EN 61400-25-2:2016en01-april-2016SIST EN 61400-25-2:2016SLOVENSKI
STANDARDSIST EN 61400-25-2:20071DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 61400-25-2
November 2015 ICS 27.180
Supersedes
EN 61400-25-2:2007
English Version
Wind turbines - Part 25-2: Communications for monitoring and control of wind power plants - Information models (IEC 61400-25-2:2015)
Eoliennes - Partie 25-2: Communications pour la surveillance et la commande des centrales éoliennes - Modèles d'information (IEC 61400-25-2:2015)
Windenergieanlagen - Teil 25-2: Kommunikation für die Überwachung und Steuerung von Windenergieanlagen - Informationsmodelle (IEC 61400-25-2:2015) This European Standard was approved by CENELEC on 2015-08-04. 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. European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17,
B-1000 Brussels © 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61400-25-2:2015 E SIST EN 61400-25-2:2016

European foreword The text of document 88/539/FDIS, future edition 2 of IEC 61400-25-2, prepared by IEC TC 88 "Wind turbines" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61400-25-2:2015. The following dates are fixed:
• latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-05-20 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-08-04
This document supersedes EN 61400-25-2:2007. 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 61400-25-2:2015 was approved by CENELEC as a European Standard without any modification. SIST EN 61400-25-2:2016

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 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year IEC 61400-25-1 -
Wind turbines -- Part 25-1: Communications for monitoring and control of wind power plants - Overall description of principles and models EN 61400-25-1 -
IEC 61400-25 series
Wind turbines EN 61400-25 series
IEC 61400-25-3 2015
Wind turbines -- Part 25-3: Communications for monitoring and control of wind power plants - Information exchange models FprEN 61400-25-3 2015
IEC 61400-25-4 -
- -
IEC 61850-5 -
Communication networks and systems for power utility automation -- Part 5: Communication requirements for functions and device models EN 61850-5 -
IEC 61850-7-1 2011
Communication networks and systems for power utility automation -- Part 7-1: Basic communication structure - Principles and models EN 61850-7-1 2011
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) EN 61850-7-2 2010
IEC 61850-7-3 2010
Communication networks and systems for power utility automation -- Part 7-3: Basic communication structure - Common data classes EN 61850-7-3 2011
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 EN 61850-7-4 2010
ISO 639 series
Codes for the representation of names of languages - series
ISO 3166 series
Codes for the representation of names of countries and their subdivisions - series
ISO 80000-1 -
Quantities and units -- Part 1: General EN ISO 80000-1 -
IEC/TS 61400-26-1 2011
Wind turbines - Part 26-1: Time-based availability for wind turbine generating systems - -
IEEE 754 -
IEEE Standard for Binary Floating-Point Arithmetic - -
IEC 61400-25-2 Edition 2.0 2015-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Wind turbines –
Part 25-2: Communications for monitoring and control of wind power plants – Information models
Eoliennes –
Partie 25-2: Communications pour la surveillance et la commande des centrales éoliennes – Modèles d’information
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 27.180
ISBN 978-2-8322-2726-8
– 2 – IEC 61400-25-2:2015 © IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope . 9 2 Normative references. 10 3 Terms and definitions . 12 4 Abbreviated terms . 12 5 General . 15 5.1 Overview of logical node classes . 15 5.2 Use of logical node classes . 17 5.3 Extensions of the information model . 18 6 Wind power plant logical node classes . 18 6.1 System specific logical nodes . 18 6.1.1 Wind power plant common logical node class . 18 6.1.2 LN: Logical node zero Name: LLN0 . 20 6.1.3 LN: Physical device information Name: LPHD . 20 6.2 Wind power plant specific logical nodes . 21 6.2.1 LN: Wind power plant general information Name: WPPD . 21 6.2.2 LN: Wind turbine general information Name: WTUR . 22 6.2.3 LN: Wind turbine rotor information Name: WROT . 22 6.2.4 LN: Wind turbine transmission information Name: WTRM . 23 6.2.5 LN: Wind turbine generator information Name: WGEN . 24 6.2.6 LN: Wind turbine converter information Name: WCNV . 25 6.2.7 LN: Wind turbine transformer information Name: WTRF . 26 6.2.8 LN: Wind turbine nacelle information Name: WNAC . 27 6.2.9 LN: Wind turbine yawing information Name: WYAW . 28 6.2.10 LN: Wind turbine tower information Name: WTOW . 29 6.2.11 LN: Wind power plant meteorological information Name: WMET . 30 6.2.12 LN: Wind power plant alarm information Name: WALM . 31 6.2.13 LN: Wind turbine availability information
Name: WAVL . 31 6.2.14 LN: Wind power plant active power control Name: WAPC . 32 6.2.15 LN: Wind power plant reactive power control Name: WRPC . 33 6.3 Data name semantic . 34 7 Common data classes . 47 7.1 Basic concepts for common data classes (CDC) . 47 7.1.1 Categories of common data classes . 47 7.1.2 Structure of common data classes . 48 7.2 Type definitions . 50 7.2.1 General . 50 7.2.2 BasicTypes . 50 7.2.3 CommonACSITypes . 50 7.2.4 ConstructedAttributeClasses . 51 7.2.5 Originator . 54 7.3 Wind power plant specific common data classes (CDC). 55 7.3.1 General . 55 7.3.2 Setpoint value (SPV) . 56 7.3.3 Status Value (STV) . 58 SIST EN 61400-25-2:2016

IEC 61400-25-2:2015 © IEC 2015 – 3 –
7.3.4 Alarm (ALM) . 58 7.3.5 Command (CMD) . 60 7.3.6 Event counting (CTE) . 61 7.3.7 State timing (TMS) . 63 7.3.8 Alarm Set Status (AST) . 65 7.4 Common data classes inherited from IEC 61850-7-3 . 65 7.4.1 CDCs from IEC 61850-7-3 (unchanged) . 65 7.4.2 CDCs from IEC 61850-7-3 (specialised) . 66 7.5 Common data class attribute semantics . 68 Annex A (informative)
Information model for statistical data
and historical statistical data . 73 A.1 General . 73 A.2 Model for statistical and historical statistical data . 73 A.3 Logical node extension for statistical data . 76 A.3.1 Data for calculation method for analogue and statistical analogue values . 76 A.3.2 Data name semantics . 76 A.4 Common data class for statistical data . 78 A.4.1 Object reference setting group common data class (ORG) . 78 Annex B (normative)
Value range for units and multiplier . 80 Annex C (normative)
Logical nodes for state log, analogue log and report information . 83 C.1 LN: Wind turbine state log information
Name: WSLG . 83 C.2 LN: Wind turbine analogue log information Name: WALG . 85 C.3 LN: Wind turbine report information Name: WREP . 88 Annex D (informative)
Wind power plant controller . 90 D.1 General . 90 D.2 Active power control functions . 91 D.3 Reactive power control functions . 94 Annex E (informative)
List of mandatory logical nodes and data . 97 E.1 General . 97 Annex F (informative)
Control authority management . 99 F.1 General . 99 F.2 Functional description . 99 F.2.1 Local mode . 99 F.2.2 Local mode at station level . 99 F.3 Logical Node representation . 100 F.3.1 Local mode . 100 F.3.2 Diagram description . 100 F.4 Local mode at station level . 101 F.4.1 General . 101 F.4.2 Diagram description . 101
Figure 1 – Conceptual communication model of the IEC 61400-25 series . 10 Figure 2 – Relationship of logical nodes . 15 Figure 3 – Use of instances of logical nodes . 18 Figure A.1 – Conceptual model of statistical and historical statistical data (1) . 74 Figure A.2 – Conceptual model of statistical and historical statistical data (2) . 75 SIST EN 61400-25-2:2016

– 4 – IEC 61400-25-2:2015 © IEC 2015 Figure D.1 – Conceptual structure of the wind power plant control functions . 90 Figure D.2 – Schematic illustration of the active
power limitation control function . 91 Figure D.3 – Schematic illustration of the gradient power control function . 92 Figure D.4 – Schematic illustration of the delta power control function . 92 Figure D.5 – Schematic illustration of a combined control –
including gradient, delta and active power limitation control . 93 Figure D.6 – Schematic illustration of the apparent power control function . 93 Figure D.7 – Schematic illustration of the reactive power control function . 94 Figure D.8 – Schematic illustration of the power factor control function . 95 Figure D.9 – Schematic illustration of the voltage control function
using reactive power control . 96 Figure F.1 – Local mode . 100 Figure F.2 – Local mode at station level . 101
Table 1 – System specific logical nodes . 15 Table 2 – Wind power plant general logical nodes . 16 Table 3 – Logical nodes for modelling a wind turbine . 16 Table 4 – Logical nodes for modelling a non-turbine device . 17 Table 5 – Wind power plant common logical node class . 19 Table 6 – Logical node zero class . 20 Table 7 – Physical device information class . 21 Table 8 – LN: Wind power plant general information (WPPD) . 21 Table 9 – LN: Wind turbine general information (WTUR) . 22 Table 10 – LN: Wind turbine rotor information (WROT) . 23 Table 11 – LN: Wind turbine transmission information (WTRM) . 24 Table 12 – LN: Wind turbine generator information (WGEN). 25 Table 13 – LN: Wind turbine converter information (WCNV) . 26 Table 14 – LN: Wind turbine transformer information (WTRF) . 27 Table 15 – LN: Wind turbine nacelle information (WNAC) . 28 Table 16 – LN: Wind turbine yawing information (WYAW) . 29 Table 17 – LN: Wind turbine tower information (WTOW) . 29 Table 18 – LN: Wind power plant meteorological information (WMET) . 30 Table 19 – LN: Wind power plant alarm information (WALM) . 31 Table 20 – LN: Wind turbine availability (WAVL) . 32 Table 21 – LN: Wind power plant active power control information (WAPC) . 33 Table 22 – LN: Wind power plant reactive power control information (WRPC) . 34 Table 23 – Data name semantic . 35 Table 24 – General table structure of a common data class (CDC) . 48 Table 25 – Common data class attributes . 49 Table 26 – Conditions for the presence of an attribute . 49 Table 27 – Basic types . 50 Table 28 – AnalogueValue . 51 Table 29 – TimeStamp type . 52 Table 30 – TimeQuality definition . 53 SIST EN 61400-25-2:2016

IEC 61400-25-2:2015 © IEC 2015 – 5 –
Table 31 – TimeAccuracy . 53 Table 32 – Quality . 54 Table 33 – Unit . 54 Table 34 – Originator . 55 Table 35 – Values for orCat . 55 Table 36 – Wind power plant specific common data classes. 56 Table 37 – CDC: Setpoint value (SPV) . 57 Table 38 – CDC: Status Value (STV) . 58 Table 39 – CDC: Alarm (ALM) . 59 Table 40 – CDC: Command (CMD) . 61 Table 41 – CDC: Event counting (CTE) . 62 Table 42 – CDC: State timing (TMS) . 64 Table 43 – CDC: Alarm Set Status (AST) . 65 Table 44 – Specialized common data classes . 66 Table 45 – Wind power plant device name plate
common data class specification WDPL . 67 Table 46 – Common data class attribute semantic . 68 Table A.1 – Description of Data . 77 Table A.2 – Object reference setting group common data class specification. 78 Table B.1 – SI units: base units . 80 Table B.2 – SI units: derived units . 80 Table B.3 – SI units: extended units . 81 Table B.4 – SI units: industry specific units. 81 Table B.5 – Multiplier . 82 Table C.1 – LN: Wind turbine state log information (WSLG) . 84 Table C.2 – LN: Wind turbine analogue log information (WALG) . 86 Table C.3 – LN: Wind turbine report information (WREP) . 89 Table E.1 – Mandatory system specific logical nodes . 97 Table E.2 – Mandatory wind turbine specific logical nodes . 97 Table E.3 – Mandatory wind power plant specific common data classes (CDC) . 97 Table E.4 – Mandatory common data classes inherited from IEC 61850-7-3 . 97 Table E.5 – Mandatory common data classes inherited
from IEC 61850-7-3 and specialised . 98
– 6 – IEC 61400-25-2:2015 © IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
WIND TURBINES –
Part 25-2: Communications for monitoring and
control of wind power plants – Information models
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 61400-25-2 has been prepared by IEC technical committee 88: Wind turbines.
The text of this standard is based on the following documents: FDIS Report on voting 88/539FDIS 88/551/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. The scope of revision includes: SIST EN 61400-25-2:2016

IEC 61400-25-2:2015 © IEC 2015 – 7 –
• harmonization with Common Data Classes in Edition 2 of IEC 61850-7-3, • harmonization with Logical node classes in Edition 2 of IEC 61850-7-4, • harmonization with Information models in IEC 61850-7-410 and IEC 61850-7-420, • reduction of overlap between standards and simplification by increased referencing, • extension of Data objects for operation of smart grids (in US and other areas), • extended and enhanced semantics for existing data objects, and
includes the following significant technical changes with respect to the previous edition: a) The model on alarm handling has been revised and the logical node WALM and associated cdc’s have been modified. b) A new logical node class WPPD that represents general data for non-turbine devices has been added. c) A new logical node class WAVL that represents availibilty data has been added. d) WMET has been revised and harmonized with MMET. If MMET is extended with data object for altitude and ice then WMET may be deleted in future editions. e) External Met sensors (WndDir, WndSpd, Humidity, Pressure, Temperature) have been removed from WNAC and moved to WMET. f) Some data types, such as CtxInt, are not supported by IEC 61850 so other data types need to be used. g) Abbreviations have been changed to resolve inconsistencies with IEC 61850. This affects several data names. h) Enumeration values and definitions in the standard have been harmonized. i) Additional data objects regarding smart grid have been added. j) Wind power specific CDCs that in Edition 1 contained subsets of attributes of CDCs from IEC 61850-7-3 now implicitly include all attributes of these CDCs. k) Technical issues related to IEC 61400-25-2:2006 have been resolved and results incorporated in the standard. l) The presence conditions for statistical information has been modified compared to IEC 61850-7-4:2010. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. A list of all parts of the IEC 61400 series, under the general title Wind turbines, 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 website 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.
– 8 – IEC 61400-25-2:2015 © IEC 2015 INTRODUCTION The IEC 61400-25 series defines communication for monitoring and control of wind power plants. The modeling approach of the IEC 61400-25 series has been selected to provide abstract definitions of classes and services such that the specifications are independent of specific protocol stacks, implementations, and operating systems. The mapping of these abstract classes and services to a specific communication profile is not within the scope of this part of the IEC 61400-25 series but within the scope of IEC 61400-25-4. To reach interoperability, all data in the information model need a strong definition with regard to syntax and semantics. The semantics of the data are mainly provided by names assigned to logical nodes and data they contain, as defined in this part of the IEC 61400-25 series. Interoperability is easiest if as many as possible of the data are defined as mandatory. It should be noted that data with full semantics is only one of the elements required to achieve interoperability. Since data and services are hosted by intelligent electronic devices (IED), a proper device model is needed along with compatible domain specific services (see IEC 61400-25-3). This part is used to specify the abstract definitions of a logical device class, logical node classes, data classes, and abstract common data classes. These abstract definitions are mapped into concrete object definitions that are to be used for a particular protocol. The compatible logical node name, data object name
and data attribute name definitions found in this part and the associated semantics are fixed. NOTE 1 Performance of the IEC 61400-25 series implementations is application-specific. The IEC 61400-25 series does not guarantee a certain level of performance. This is beyond the scope of the IEC 61400-25 series. However, there is no underlying limitation in the communications technology to prevent high-speed application (millisecond level responses). NOTE 2 Authorisation processes using PKI, role based access control as e.g. defined in the IEC 62351 series of standards
or other security and access safety methods are beyond the scope of this standard. SIST EN 61400-25-2:2016

IEC 61400-25-2:2015 © IEC 2015 – 9 –
WIND TURBINES –
Part 25-2: Communications for monitoring
and control of wind power plants –
Information models
1 Scope The focus of the IEC 61400-25 series is on the communications between wind power plant components such as wind turbines and actors such as SCADA systems. Internal communication within wind power plant components is outside the scope of the IEC 61400-25 series. The IEC 61400-25 series is designed for a communication environment supported by a client-server model. Three areas are defined, that are modelled separately to ensure the scalability of implementations:
1) wind power plant information models,
2) information exchange model, and
3) mapping of these two models to a standard communication profile.
The wind power plant information model and the information exchange model, viewed together, constitute an interface between client and server. In this conjunction, the wind power plant information model serves as an interpretation frame for accessible wind power plant data. The wind power plant information model is used by the server to offer the client a uniform, component-oriented view of the wind power plant data. The information exchange model reflects the whole active functionality of the server. The IEC 61400-25 series enables connectivity between a heterogeneous combination of client and servers from different manufacturers and suppliers. As depicted in Figure 1, the IEC 61400-25 series defines a server with the following aspects: – information provided by a wind power plant component, for example “wind turbine rotor speed” or “total power production of a certain time interval”, is modelled and made available for access; – services to exchange values of the modelled information defined in IEC 61400-25-3; – mapping to a communication profile, providing a protocol stack, to carry the exchanged values from the modelled information (IEC 61400-25-4). The IEC 61400-25 series only defines how to model the information, information exchange and mapping to specific communication protocols. The standard excludes a definition of how and where to implement the communication interface, the application program interface and implementation recommendations. However, the objective of the standard is that the information associated with a single wind power plant component (such as a wind turbine) is accessible through a corresponding logical device. IEC 61400-25-2 specifies the information model of devices and functions related to wind power plant applications. In particular, it specifies the compatible logical node names, and data names for communication between wind power plant components. This includes the relationship between logical devices, logical nodes and data. The names defined in the IEC 61400-25 series are used to build the hierarchical object references applied for communicating with components in wind power plants. SIST EN 61400-25-2:2016

– 10 – IEC 61400-25-2:2015 © IEC 2015 This part of IEC 61400-25 specifies common attribute types and common data classes related to wind turbine applications. In particular it specifies common data classes for: • setpoint value, • status value, • alarm, • command, • event counting, • state timing, • alarm set status.
Figure 1 – Conceptual communication model of the IEC 61400-25 series Devices implementing the information model of this part choose one or more logical nodes as required by the application. NOTE 1 The IEC 61400-25 series focuses on the common, non-vendor-specific information. Those information items that tend to vary greatly between vendor-specific implementations can for example be specified in bilateral agreements or by user groups. NOTE 2 This part does not provide tutorial material. 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 61400-25 (all parts), Wind turbines – Part 25: Communications for monitoring and control of wind power plants IEC 61400-25-1, Wind turbines – Part 25-1: Communications for monitoring and control of wind power plants – Overall description of principles and models IEC SIST EN 61400-25-2:2016

IEC 61400-25-2:2015 © IEC 2015 – 11 –
IEC 61400-25-3:2015, Wind turbines – Part 25-3: Communications for monitoring and control of wind power plants – Information exchange models IEC 61400-25-4:___1, Wind turbines – Part 25-4: Communications for monitoring and ontrol of wind power plants – Mapping to communication profile
IEC TS 61400-26-1:2011, Wind turbines – Part 26-1: Time-based availability for wind turbine generating systems IEC 61850-5, Communication networks and systems for power utility automation – Part 5: Communication requirements for functions and device models IEC 61850-7-1:2011, 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 – 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 ISO 639 (all parts), Codes for the representation of names of languages ISO 80000-1, Quantities and units – Part 1: General ISO 3166 (all parts), Codes for the representation of names of countries and their subdivisions IEEE 754, Standard for Binary Floating-Point Arithmetic ______________ 1
To be published. SIST EN 61400-25-2:2016

– 12 – IEC 61400-25-2:2015 © IEC 2015 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61400-25-1 as well as the following apply. 3.1
conditional attribute of a common data class provided by an implementation of the IEC 61400-25 series if a certain condition corresponding with the attribute is true 3.2
mandatory defined content shall be provided in compliance with the IEC 61400-25 series 3.3
optional defined content can be optionally provided in compliance with the IEC 61400-25 series 4 Abbreviated terms CDC Common Data Class DC Data Class IED Intelligent Electronic Device LCB Log Control Block LD Logical Device LN Logical Node LPHD Logical node Physical Device Information RCB Report Control Block SBO Select Before Operate WPP Wind Power Plant WT Wind Turbine XML Extensible Markup Language Abbreviated terms used to build names of data objects found in LNs shall be as listed below. EXAMPLE RotPos is constructed by using two names "Rot" which stands for Rotor and "Pos" which stands for "Position". Thus the concatenated name represents a "Rotor Position”.
IEC 61400-25-2:2015 © IEC 2015 – 13 –
Term Description A Current AC AC, alternating current Acs Access Act Action, activity, active, activate Alm Alarm Alt Altitude An Analogue Ane Anemometer Ang Angle Avl Availability Bec Beacon Beh Behaviour Bl Blade Blb Bulb Blk Block, blocked Brg Bearing Brk Brake Cab Cable Cap Capability, capacity Ccw Counter clockwise Chk Check Chr Characteristic Cl Cooling, cooling system Clc Calculate, calculated, calculation Cloud Cloud Cmd Command Cnt Counter, counting Cnv Converter Ctl Control Cut Cut, cut-out, cut-in Cvr Cover, cover level Cw Clockwise DC DC, direct current Dcl DC-link Dct Direct Dehum De-humidifier Del Delta Den Density Dev Device Dew Dew Dff Diffuse Dir Direction Dl Daylight Dmd Demand Dn Down, downstream Drp Droop Dsp Displacement Dur Duration EE External equipment Emg Emergency Term Description Ena Enabled, enable, allow operation Env Environment Eq Equalization, equal Exp Expired Expt Export Ext Excitation Fil Filter, filtration, filtration system Fll Fall Flsh Flash, flashing Gbx Gearbox Gn Generator Gr Group Gra Gradient Gri Grid Gs Grease Gust Gust Health Health Hi High, highest Hor Horizontal Ht Heating, heating system Htex Heat-exchanger Hub Hub Hum Humidity Hy Hydraulic, hydraulic system Hz Frequency Ia Information available Iafm Information available force majeure Iano Information available nonoperative Ianofo Information available nonoperative forced outage Ianopca Information available nonoperative planned corrective actions Ianos Information available nonoperative suspended Ianosm Information available nonoperative scheduled maintenance Iao Information available operative Iaog Information available operative generating Iaogfp Information available operative generating with full performance Iaogpp Information available operative generating with partial performance Iaong Information available operative nongenerating Iaongel Information available operative nongenerating out of electrical specification Iaongen Information available operative nongenerating out of environmental specification Iaongrs Information available operative nongenerating requested shutdown Iaongts Information available operative nongenerating technical standby SIST EN 61400-25-2:2016

– 14 – IEC 61400-25-2:2015 © IEC 2015 Term Description Ice Ice Impt Import In Input Inl Inline Inlet Inlet Insol Insolation Intn Internal Intv Interval Iu Information unavailable Key Key, physical control device Lev Level Lft Lifting, lift Lim Limit Lo Low Loc Local Log Log Lu Lubrication Lum Luminosity Min Minimum Mod Mode Mth Method Nam Name Num Number
...