Energy management system application program interface (EMS-API) - Part 401: Profile framework

IEC 61970-401:2022 describes how IEC 61970-450 (all parts), IEC 61970-600 (all parts) profile specifications are structured and created. Profile specifications describe a subset of the Canonical CIM dedicated to a specific data exchange. The Canonical CIM is described in IEC 61970 300 (all parts) as well as in IEC 61968-11.
Rules for creation or extension of Canonical CIM are outside the scope of this document.
This document specifies the structure of a profile specification and the rules for selecting subsets of information from the Canonical CIM. It standardizes the operations used to create the profile elements from the Canonical CIM. As Canonical CIM is described in UML the operations are described in terms of UML classes, attributes, and roles.
It is possible to map UML to RDFS or OWL, so any of the languages UML, RDFS or OWL can be used to describe the created profiles. Specification of languages (UML, RDFS or OWL) used to describe profiles as well as how profiles are presented and edited in user interfaces are outside the scope of this document. Languages used to describe profiles are specified in other specifications. Relevant specifications are referenced in Clause 2.
UML supports adding free text that describes further restrictions on UML constructs, e.g. classes, attribute values, association roles and cardinalities. Languages such as OCL and SHACL are dedicated to describing constraints. OCL is used to describe constraints for object data described in UML while SHACL is used to describe constraints on graph data described by RDFS or OWL. OCL is within the scope of this document, but SHACL is not.
This document supports profiles describing data exchanged as CIMXML datasets or messages. The exchange format within the scope is in accordance with IEC 61970-552 but other formats are possible.
Tool interoperability and serialisation formats are outside the scope of this document.
This first edition cancels and replaces IEC TS IEC 61970-401 published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The previous edition of IEC TS 61970-401:2005 provided an overview of the Component Interface Specifications (CIS) IEC 61970-402, IEC 61970-403, IEC 61970-404, IEC 61970-405, and IEC 61970-407. IEC 61970-402 to IEC 61970-407 are duplicates of existing OPC interfaces from OPC Foundation and the DAIS/HDA interfaces from OMG. Hence IEC 61970-402 to IEC 61970-407 have been withdrawn and IEC TS 61970-401:2005 no longer serves a purpose.
b) IEC 61970-401 (this document) does not contain an overview of Component Interface Specifications (CIS) but instead a description of how to create profile specifications that describes dataset contents (or message contents). Hence it has been renamed "Profile framework". The profile specifications IEC 61970-450 (all parts) and IEC 61970-600 (all parts) describe dataset contents. The purpose of this document is to define the rules to be followed in the process of creating profile specifications.

Interface de programme d’application pour système de gestion d’énergie (EMS-API) – Partie 401: Cadre de profils

IEC 61970-401:2022 décrit le mode de structuration et de création des spécifications de profils IEC 61970-450 (toutes les parties) et IEC 61970-600 (toutes les parties). Les spécifications de profils décrivent un sous-ensemble du CIM canonique dédié à un échange de données spécifiques. Le CIM canonique est décrit dans l’IEC 61970-300 (toutes les parties), ainsi que dans l’IEC 61968-11.
Les règles de création ou d’extension du CIM canonique ne relèvent pas du domaine d’application du présent document.
Le présent document définit la structure d’une spécification de profil, ainsi que les règles de sélection des sous-ensembles d’informations à partir du CIM canonique. Il normalise les opérations qui permettent de créer les éléments de profils à partir du CIM canonique. Étant donné que le CIM canonique est décrit en langage UML, les opérations sont décrites en matière de classes, d'attributs et de rôles UML.
Du fait d’une mise en correspondance possible entre le langage UML et le langage RDFS ou OWL, l’un des langages UML, RDFS ou OWL peut donc être utilisé pour décrire les profils créés. La spécification des langages (UML, RDFS ou OWL) utilisés pour décrire les profils, ainsi que le mode de présentation et d’édition des profils dans les interfaces utilisateurs ne relèvent pas du domaine d’application du présent document. Les langages qui servent à décrire les profils sont définis dans d’autres spécifications. Les spécifications pertinentes sont référencées à l’Article 2.
Le langage UML prend en charge l’ajout d’un texte libre qui décrit des restrictions supplémentaires concernant les constructions UML, par exemple, classes, valeurs d’attributs, rôles d’association et cardinalités. Les langages tels que OCL et SHACL sont dédiés à la description des contraintes. Le langage OCL sert à décrire les contraintes relatives aux données d’objets décrites en langage UML, tandis que le langage SHACL sert à décrire les contraintes relatives aux données graphiques décrites par le langage RDFS ou OWL. Le langage OCL relève du domaine d'application du présent document, contrairement au langage SHACL.
Le présent document prend en charge les profils de description des données échangées en tant qu’ensembles de données ou messages CIMXML. Le format d’échange qui relève du domaine d’application est conforme à l’IEC 61970-552, mais d’autres formats sont possibles.
L’interopérabilité des outils et les formats de sérialisation ne relèvent pas du domaine d'application du présent document.
Cette première édition annule et remplace l’IEC TS 61970-401 parue en 2005. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) l’édition précédente de l’IEC TS 61970-401:2005 a donné une vue d’ensemble des spécifications d’interface de composants (CIS - Component Interface Specifications) (IEC 61970-402, IEC 61970-403, IEC 61970-404, IEC 61970-405 et IEC 61970-407). Les normes IEC 61970-402 à IEC 61970-407 constituent des duplications d’interfaces OPC existantes de OPC Foundation et des interfaces DAIS/HDA d’OMG. Par conséquent, les normes IEC 61970-402 à IEC 61970-407 ont été supprimées et l’IEC TS 61970-401:2005 n’a plus d’utilité;
b) l’IEC 61970-401 (le présent document) ne comporte pas de vue d’ensemble des spécifications d’interface de composantes (CIS), mais en revanche une description du mode de création des spécifications de profils qui spécifie des contenus d’ensembles de données (ou des contenus de messages). La présente norme a par conséquent été renommée "Cadre de profils". Les spécifications de profils IEC 61970-450 (toutes les parties) et IEC 61970-600 (toutes les parties) décrivent des contenus d’ensembles de données. L’objet du présent document est de définir les règles à suivre dans le processus de création de spécifications de profils.

General Information

Status
Published
Publication Date
29-May-2022
Current Stage
PPUB - Publication issued
Completion Date
30-May-2022
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IEC 61970-401
Edition 1.0 2022-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 401: Profile framework
Interface de programmation d’application pour systėme de gestion d’énergie
(EMS-API) –
Partie 401: Cadre de profils
IEC 61970-401:2022-05(en-fr)
---------------------- Page: 1 ----------------------
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IEC 61970-401
Edition 1.0 2022-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 401: Profile framework
Interface de programmation d’application pour systėme de gestion d’énergie
(EMS-API) –
Partie 401: Cadre de profils
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-0093-3

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® Registered trademark of the International Electrotechnical Commission
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---------------------- Page: 3 ----------------------
– 2 – IEC 61970-401:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms, definitions and abbreviated terms ........................................................................ 9

3.1 Terms and definitions .............................................................................................. 9

3.2 Abbreviated terms ................................................................................................. 10

4 Overview ....................................................................................................................... 11

4.1 Profiles and profiling ............................................................................................. 11

4.2 Relations between Canonical CIM, profiles and datasets ...................................... 13

4.3 Profiles and business processes ........................................................................... 14

5 Profile document structure ............................................................................................. 15

6 Profiling Use cases ........................................................................................................ 15

6.1 Overview............................................................................................................... 15

6.2 Class in different profiles with no overlap .............................................................. 16

6.3 Include overlapping sets of attributes and roles from the same class in

different profiles .................................................................................................... 17

6.4 Include a base class with different sets of attributes or roles ................................. 17

6.5 Extending an existing class ................................................................................... 17

6.6 Extending an existing class used differently in different profiles ............................ 18

6.7 Different cardinalities ............................................................................................ 18

6.8 Add a new datatype .............................................................................................. 19

7 Profiling rules ................................................................................................................ 19

7.1 Overview............................................................................................................... 19

7.2 R0101 Information model class, attribute, role and datatype names ...................... 19

7.3 Class rules for classes without stereotype ............................................................. 19

7.3.1 R0201 Including a class ................................................................................. 19

7.3.2 R0202 Adding a new class ............................................................................. 19

7.3.3 R0203 The description of a class ................................................................... 19

7.3.4 R0204 Name of a class .................................................................................. 19

7.3.5 R0205 Cardinality of a class .......................................................................... 19

7.3.6 R0206 Concrete class.................................................................................... 20

7.4 Attribute rules ....................................................................................................... 20

7.4.1 R0301 Including an attribute .......................................................................... 20

7.4.2 R0302 Adding a new attribute ........................................................................ 20

7.4.3 R0303 The description of an attribute ............................................................ 20

7.4.4 R0304 The name of an attribute..................................................................... 20

7.4.5 R0305 The cardinality of an attribute ............................................................. 20

7.4.6 R0306 The datatype of an attribute ................................................................ 20

7.4.7 R0307 Initial value of an attribute .................................................................. 20

7.5 Datatypes ............................................................................................................. 21

7.5.1 R0401 Including a datatype ........................................................................... 21

7.5.2 R0402 Adding a new datatype ....................................................................... 21

7.5.3 R0403 Primitive datatype ............................................................................... 21

7.5.4 R0405 CIMDatatype ...................................................................................... 21

7.5.5 R0405 Compound datatype ........................................................................... 21

---------------------- Page: 4 ----------------------
IEC 61970-401:2022 © IEC 2022 – 3 –

7.5.6 R0406 Enumeration ....................................................................................... 21

7.5.7 R0407 The description of a datatype ............................................................. 21

7.5.8 R0408 The name of a datatype ...................................................................... 21

7.6 Association rules .................................................................................................. 22

7.6.1 R0501 Including an association ..................................................................... 22

7.6.2 R0502 Adding a new association ................................................................... 22

7.6.3 R0503 The names of the two roles in an association ..................................... 22

7.6.4 R0504 The cardinality of an association role .................................................. 22

7.6.5 R0505 Association navigability ...................................................................... 22

7.6.6 R0506 The description of an association ....................................................... 22

7.7 Attribute and association restrictions ..................................................................... 22

7.7.1 R0601 Overlap between profiles .................................................................... 22

7.7.2 R0602 Same base class with different sets of attributes and

associations in different profiles ..................................................................... 23

7.8 R0701 Inheritance structure .................................................................................. 23

7.9 R0801 Constraints ................................................................................................ 23

8 Extending Canonical CIM .............................................................................................. 24

9 Requirements for a profiling tool .................................................................................... 24

9.1 Minimum requirements .......................................................................................... 24

9.2 Extended requirements for OCL rules ................................................................... 25

Annex A (informative) ........................................................................................................... 26

A.1 Mapping of UML to OWL ....................................................................................... 26

A.2 Units and multipliers issue .................................................................................... 26

A.2.1 Description of issue ....................................................................................... 26

A.2.2 Long term solution ......................................................................................... 30

A.2.3 Medium term solution .................................................................................... 30

A.2.4 Temporary solution by flattening the profiles .................................................. 31

A.2.5 Temporary solution by fattening the CIMXML data ......................................... 31

A.2.6 Maintaining information for a flattened profile ................................................ 32

Figure 1 – Relations between standards and profiling ........................................................... 12

Figure 2 – Relation between Canonical CIM, profiles and datasets ....................................... 13

Figure 3 – Class in different profiles with no overlap ............................................................. 16

Figure 4 – Class in different profiles with overlap .................................................................. 17

Figure 5 – Same base class with different sets of attributes or roles ..................................... 17

Figure 6 – Extending a class the same way in all applicable profiles ..................................... 18

Figure 7 – Extending an existing class used differently in different profiles ........................... 18

Figure A.1 – CIMDatatype example in Canonical CIM and SSH profile .................................. 27

Figure A.2 – ActivePower from IEC 61970-452:2021 (CIM16) ............................................... 28

Figure A.3 – Profile for ActivePower including CIMDatatype attributes .................................. 28

Figure A.4 – CIMXML example with an ActivePower instance as an identified node .............. 29

Figure A.5 – CIMXML example with an ActivePower blank node serialisation example .......... 29

Figure A.6 – Profile for ActivePower based on CIM version 9 (CIM9) .................................... 29

---------------------- Page: 5 ----------------------
– 4 – IEC 61970-401:2022 © IEC 2022

Figure A.7 – CIMXML example with an ActivePower instance according to the original

serialisation .......................................................................................................................... 29

Figure A.8 – Example of Flattened profile for ActivePower .................................................... 31

Table 1 – Abbreviated terms ................................................................................................. 11

Table A.1 – UML and ontology languages ............................................................................. 26

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IEC 61970-401:2022 © IEC 2022 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY MANAGEMENT SYSTEM APPLICATION
PROGRAM INTERFACE (EMS-API) –
Part 401: Profile framework
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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rights. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 61970-401 has been prepared by IEC technical committee 57: Power systems management

and associated information exchange. It is an International Standard.

This first edition cancels and replaces IEC TS IEC 61970-401 published in 2005. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) The previous edition of IEC TS 61970-401:2005 provided an overview of the Component

Interface Specifications (CIS) IEC 61970-402, IEC 61970-403, IEC 61970-404,

IEC 61970-405, and IEC 61970-407. IEC 61970-402 to IEC 61970-407 are duplicates of

existing OPC interfaces from OPC Foundation and the DAIS/HDA interfaces from OMG.

Hence IEC 61970-402 to IEC 61970-407 have been withdrawn and IEC TS 61970-401:2005

no longer serves a purpose.
---------------------- Page: 7 ----------------------
– 6 – IEC 61970-401:2022 © IEC 2022

b) IEC 61970-401 (this document) does not contain an overview of Component Interface

Specifications (CIS) but instead a description of how to create profile specifications that

describes dataset contents (or message contents). Hence it has been renamed "Profile

framework". The profile specifications IEC 61970-450 (all parts) and IEC 61970-600 (all

parts) describe dataset contents. The purpose of this document is to define the rules to be

followed in the process of creating profile specifications.
The text of this International Standard is based on the following documents:
Draft Report on voting
57/2482/FDIS 57/2494/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

A list of all parts in the IEC 61970 series, published under the general title Energy management

system application program interface (EMS-API), can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The "colour inside" logo on the cover page of this document 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.
---------------------- Page: 8 ----------------------
IEC 61970-401:2022 © IEC 2022 – 7 –
INTRODUCTION

This document is one of the IEC 61970 series that defines message interfaces for network

application data exchange.

The IEC 61970-300 series of documents specify a canonical Common Information Model (CIM)

describing network application data. The CIM is an information model that represents all the

major objects in an electric utility enterprise needed to describe data used by power network

applications. The Canonical CIM provides the semantics for IEC 61970-450 (all parts) and

IEC 61970-600 (all parts) profile specifications dedicated to specific data exchanges.

This document describes the framework in which profile specifications are created from the

Canonical CIM. It describes the structure of profile documents and the rules for selection of

information from the Canonical CIM to be included in profile specifications.
The reasons for creating this document are

1) The IEC 61970 profiles have for a long time been created using a profiling method not

described by an IEC 61970 document.

2) The IEC 61970 profiling method has issues that need resolution. Issues and solutions are

described in Annex A.
---------------------- Page: 9 ----------------------
– 8 – IEC 61970-401:2022 © IEC 2022
ENERGY MANAGEMENT SYSTEM APPLICATION
PROGRAM INTERFACE (EMS-API) –
Part 401: Profile framework
1 Scope

This document describes how IEC 61970-450 (all parts), IEC 61970-600 (all parts) profile

specifications are structured and created. Profile specifications describe a subset of the

Canonical CIM dedicated to a specific data exchange. The Canonical CIM is described in

IEC 61970-300 (all parts) as well as in IEC 61968-11.

Rules for creation or extension of Canonical CIM are outside the scope of this document.

This document specifies the structure of a profile specification and the rules for selecting

subsets of information from the Canonical CIM. It standardizes the operations used to create

the profile elements from the Canonical CIM. As Canonical CIM is described in UML the

operations are described in terms of UML classes, attributes, and roles.

It is possible to map UML to RDFS or OWL, so any of the languages UML, RDFS or OWL can

be used to describe the created profiles. Specification of languages (UML, RDFS or OWL) used

to describe profiles as well as how profiles are presented and edited in user interfaces are

outside the scope of this document. Languages used to describe profiles are specified in other

specifications. Relevant specifications are referenced in Clause 2.

UML supports adding free text that describes further restrictions on UML constructs, e.g.

classes, attribute values, association roles and cardinalities. Languages such as OCL and

SHACL are dedicated to describing constraints. OCL is used to describe constraints for object

data described in UML while SHACL is used to describe constraints on graph data described

by RDFS or OWL. OCL is within the scope of this document, but SHACL is not.

This document supports profiles describing data exchanged as CIMXML datasets or messages.

The exchange format within the scope is in accordance with IEC 61970-552 but other formats

are possible.

Tool interoperability and serialisation formats are outside the scope of this document.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes the requirements of this document. For dated references, only the edition cited

applies. For undated references, the latest edition of the referenced document (including any

amendments) applies.

IEC 61968-11, Application integration at electric utilities – System interfaces for distribution

management – Part 11: Common information model (CIM) extensions for distribution

IEC TS 61970-2, Energy management system application program interface (EMS-API) – Part 2:

Glossary

IEC 61970-300 (all parts), Energy management system application program interface (EMS-API)

---------------------- Page: 10 ----------------------
IEC 61970-401:2022 © IEC 2022 – 9 –

IEC 61970-501:2006, Energy management system application program interface (EMS-API) –

Part 501: Common Information Model Resource Description Framework (CIM RDF) schema

IEC 61970-552, Energy management system application program interface (EMS-API) –

Part 552: CIMXML Model exchange format

OMG Unified Modeling Language , OMG document number: formal/2015-03-01, available at

http://www.omg.org/spec/UML/2.5
World Wide Web Consortium (W3C), RDF 1.1 Primer from 24 June 2014, available at
https://www.w3.org/TR/rdf11-primer/

World Wide Web Consortium (W3C), RDF 1.1 Concepts and Abstract Syntax from 25 February

2014, available at https://www.w3.org/TR/rdf11-concepts/

World Wide Web Consortium (W3C), RDF 1.1 XML Syntax from 25 February 2014, available at

https://www.w3.org/TR/rdf-syntax-grammar/

World Wide Web Consortium (W3C), RDF Schema 1.1 from 25 February 2014, available at

https://www.w3.org/TR/rdf-schema/

World Wide Web Consortium (W3C), OWL 2 Web Ontology Language Primer (Second Edition),

W3C Recommendation 11 December 2012, available at https://www.w3.org/TR/owl2-primer/

World Wide Web Consortium (W3C), OWL 2 Web Ontology Language Structural Specification

and Functional-Style Syntax (Second Edition), W3C Recommendation 11 December 2012,

available at https://www.w3.org/TR/owl2-syntax/
3 Terms, definitions and abbreviated terms

For the purposes of this document, the terms and definitions given in IEC TS 61970-2 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions
3.1.1
Canonical CIM

agreed semantic information model describing the power system domain; the information model

aims at describing the power system domain in a normalized way without overlap

Note 1 to entry: The Canonical CIM is described in UML. UML can be serialized (saved as a document) in the

standardized data format XMI for exchange between UML tools. Ecore is another serialization format with capability

to describe UML.
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This specification is based on the W3C specification RDF Schema 1.0 from early 2000 which has since been

revised multiple times.
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