IEC TS 62361-102:2018

IEC TS 62361-102 ®
Edition 1.0 2018-03
TECHNICAL
SPECIFICATION
colour
inside
Power systems management and associated information exchange –
Interoperability in the long term –
Part 102: CIM – IEC 61850 harmonization

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IEC TS 62361-102 ®
Edition 1.0 2018-03
TECHNICAL
SPECIFICATION
colour
inside
Power systems management and associated information exchange –

Interoperability in the long term –

Part 102: CIM – IEC 61850 harmonization

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-5454-7

– 2 – IEC TS 62361-102:2018 © IEC 2018
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 11
3 Terms, definitions and abbreviated terms . 11
3.1 Terms and definitions . 12
3.2 Abbreviated terms . 12
4 Use case summary . 13
4.1 General . 13
4.2 SCADA/EMS/DMS configuration from IEC 61850 SCL . 13
4.3 Importing SCADA/EMS/DMS requirements into IEC 61850 SCL . 14
4.3.1 General . 14
4.3.2 Recommendation for harmonization: SCL Process/Substation/Line
section . 14
4.4 SCADA commissioning use case . 14
4.5 Volt Var control use case . 15
4.6 Wide Area Monitoring, Protection and Control (WAMPAC) for transient
stability . 16
5 Mapping SCL to SCADA/EMS/DMS relevant CIM . 16
5.1 Business requirements . 16
5.2 Profiles . 17
5.3 IEC 61850 modelling principles . 17
5.3.1 Introduction . 17
5.3.2 System Configuration description Language (SCL) . 17
5.3.3 Logical Devices and Logical Nodes . 17
5.3.4 SCL sections . 18
5.4 Mapping overview . 18
5.4.1 SCL Document Types . 18
5.4.2 General mapping principles . 19
5.5 SCL Substation section mapping . 22
5.5.1 Overview . 22
5.5.2 SCL elements and CIM classes mapping . 26
5.6 Equipment types and codes . 29
5.6.1 General . 29
5.6.2 Equipment type code mapping . 29
5.6.3 Recommendation for harmonization: SCL Equipment Type codes . 31
5.6.4 Recommendation for harmonization: SCL PSRType . 33
5.6.5 Recommendation for harmonization: CIM BusbarSection and Junction . 34
5.6.6 Recommendation for harmonization: CIM Fan, Motor, Batteries and
charging systems . 34
5.7 Naming and identification mapping . 34
5.7.1 General . 34
5.7.2 Naming and identification example . 35
5.7.3 Recommendation for harmonization: SCL naming and identification . 36
5.7.4 Recommendation for harmonization: CIM naming and identification: . 36
5.8 Voltage mapping . 36
5.8.1 General . 36

5.8.2 Voltage mapping example . 37
5.8.3 Voltage level additional attributes . 37
5.9 Connectivity modelling . 37
5.9.1 SCL Connectivity (single line diagram) modelling. 37
5.9.2 Recommendation for harmonization: SCL unconnected terminals . 39
5.9.3 Connectivity and Terminal example . 39
5.9.4 Transformation of current transformer models. 42
5.10 Phase modelling . 42
5.10.1 General . 42
5.10.2 Phase mapping example . 44
5.10.3 Recommendation for harmonization: SCL Phase modeling . 47
5.10.4 Recommendation for harmonization: CIM SinglePhaseKind . 47
6 Extension syntax for drawing layout coordinates . 47
6.1 General . 47
6.2 Recommendation for harmonization: Drawing layout syntax . 47
7 Logical Node mapping . 48
7.1 Logical Node containers . 48
7.2 CIM Measurement associations . 48
7.2.1 General . 48
7.2.2 Recommendation for harmonization: CIM SCADA package . 49
7.3 Logical Node classes relevant to CIM . 50
8 Measurement mapping . 53
8.1 General . 53
8.2 CIM Measurement Types − Logical Node and Data Object mapping . 53
8.2.1 General . 53
8.2.2 Recommendation for harmonization: CIM Measurement types . 55
8.3 Measurement associations . 56
8.4 CSWI or XSWI/XCBR as source of switch position information . 56
8.5 Direction of positive flow . 56
8.5.1 General . 56
8.5.2 Recommendation for harmonization: SCL power flow direction . 57
8.5.3 Recommendation for harmonization: CIM power flow direction. 57
8.6 CIM Extensions for Distribution – Metering Model and Reading Types . 57
9 Real time data exchange mapping . 58
9.1 Measurement identification . 58
9.2 Common Data Class mapping . 58
9.3 Common Data Class mapping to IEC 60870 and CIM Measurements . 59
9.4 Common Data Class mapping to IEEE1815 and CIM. 62
9.5 Data Attribute mapping . 62
9.5.1 General . 62
9.5.2 Quality flag mapping . 63
9.5.3 Non-real time measurement attribute mapping . 64
9.5.4 Recommendation for harmonization: CIM measurement classes . 64
10 Control Model . 64
10.1 CIM Control Modelling. 64
10.1.1 General . 64
10.1.2 Recommendation for harmonization: CIM control model . 65
10.1.3 Recommendation for harmonization: CIM CONTROL TYPES . 66

– 4 – IEC TS 62361-102:2018 © IEC 2018
10.2 Automated control sequences . 66
11 Protection modelling . 66
12 Communication model . 68
13 Settings and attributes . 68
Annex A (informative) Use case details . 80
A.1 SCADA/EMS/DMS configuration from IEC 61850 SCL − Description . 80
A.1.1 Name of use case . 80
A.1.2 Scope and objectives of use case . 80
A.1.3 Narrative of use case . 80
A.1.4 General remarks . 82
A.2 Use case diagrams . 82
A.3 Technical details . 86
A.3.1 Actors: People, systems, applications, databases, the power system,
and other stakeholders . 86
A.3.2 Preconditions, assumptions, post condition, events . 89
A.3.3 References / Issues . 89
A.3.4 Further Information on the use case for classification / mapping . 90
A.4 Step by step analysis of use case . 90
A.4.1 Pre-conditions . 90
A.4.2 Steps – Normal . 91
A.4.3 Steps – Alternative, error management, and/or maintenance/backup
scenario . 93
A.5 Information exchanged . 94
A.6 Common terms and definitions . 94
Annex B (informative) Use case details . 95
B.1 Wide Area Monitoring, Protection and Control system (WAMPAC) for
Transient stability. 95
B.1.1 Name of Use Case. 95
B.1.2 Scope and objectives of use case . 96
B.1.3 Narrative of use case . 103
B.2 Use case diagrams . 105
B.3 Technical details . 106
B.3.1 Actors: People, systems, applications, databases, the power system,
and other stakeholders . 106
B.3.2 Preconditions, assumptions, post condition, event . 107
B.3.3 References / issues . 107
B.3.4 Further information on the use case for classification / mapping . 108
B.4 Step by step analysis of use case . 108
B.4.1 Overview of scenarios . 108
B.4.2 Steps – Alternative, error management, and/or maintenance/backup
scenario . 109
B.5 Information exchanged . 111
Annex C (informative) Recommendations . 115
C.1 Recommendations for IEC 61850 . 115
C.2 Recommendations for CIM based standards, particularly IEC 61970-301 . 116
C.3 Recommendations for joint working groups . 117
Bibliography . 118

Figure 1 – IEC 61850 and CIM data flows . 15
Figure 2 – Mapping for Wide Area Monitoring Protection and Control . 16
Figure 3 – Equipment mapping . 21
Figure 4 – Example of equipment and status measurement mapping . 22
Figure 5 – UML class diagram of SCL entities showing inheritance . 24
Figure 6 – UML class diagram of SCL entities showing inheritance and containment . 25
Figure 7 – UML class diagram of SCL equipment connectivity and phase information . 26
Figure 8 – Composite Switch example. . 33
Figure 9 – Substation section connectivity example . 40
Figure 10 – Three-phase (left) and single-phase control (right) . 43
Figure 11 – Unbalanced phase switching example . 45
Figure 12 – Current CIM SCADA package . 49
Figure 13 – Revised SCADA package . 50
Figure 14 – Signal identification as defined in IEC 61850-7-2 . 58
Figure 15 – UML model of MV, DEL and WYE data classes . 59
Figure 16 – Current CIM Control Model . 65
Figure 17 – Proposal for revised CIM Control Model . 66
Figure 18 – Present IEC 61970 Protection Model . 67
Figure A.1 – Activity diagram part 1 – Create and review system specification
description . 83
Figure A.2 – Activity diagram part 2 – Create and review system configuration
description . 84
Figure A.3 – Sequence diagram . 85

Table 1 – Overview of SCL and CIM counterparts . 19
Table 2 – Mapping between SCL data types and CIM classes . 27
Table 3 – Equipment type codes . 29
Table 4 – Equipment type codes – proposed modified descriptions . 32
Table 5 – Equipment type codes – proposed additional codes . 33
Table 6 – Name mapping . 35
Table 7 – Proposed CIM NameType class naming conventions . 36
Table 8 – Base voltage mapping . 37
Table 9 – Attributes for terminal . 38
Table 10 – Attributes for ConnectivityNode . 39
Table 11 – Comparison of IEC 61850 and CIM Phase values . 44
Table 12 – Breaker mapping scenarios . 44
Table 13 – Mapping IEC 61850 Logical Nodes to CIM classes . 51
Table 14 – IEC 61850 DataObjects vs Current CIM measurement types . 54
Table 15 – IEC 61850 DataObjects for non-three phase measurements . 55
Table 16 – IEC 61850 DataObjects for CIM control types . 55
Table 17 – Mapping IEC 61850 Common Data Classes to IEC 60870 information
objects and CIM classes . 60

– 6 – IEC TS 62361-102:2018 © IEC 2018
Table 18 – Mapping IEEE1815 data point types to CIM classes . 62
Table 19 – Mapping IEC 61850 real time data attributes to CIM classes/attributes . 63
Table 20 – Mapping IEC 61850 Non-real time data attributes to CIM classes/attributes . 64
Table 21 – Mapping SCL Communication elements. 68
Table 22 – Mapping IEC 61850 settings to CIM attributes . 70

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER SYSTEMS MANAGEMENT AND ASSOCIATED INFORMATION
EXCHANGE – INTEROPERABILITY IN THE LONG TERM –

Part 102: CIM – IEC 61850 harmonization

FOREWORD
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Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 62361-102, which is a technical specification, has been prepared by IEC technical
committee 57: Power systems management and associated information exchange.

– 8 – IEC TS 62361-102:2018 © IEC 2018
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
57/1706/DTS 57/1948/RVDTS
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62361 series, published under the general title Power systems
management and associated exchange – Interoperability in the long term, can be found on the
IEC website.
In this publication, the following print types are used:
– Associations: in italic type.
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
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
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INTRODUCTION
The IEC focuses primarily on specifying the payload of various functionally oriented messages
or file exchanges. This concept includes configuration files like those developed in all IEC
power systems management standards. The different smart grid initiatives in the USA, Europe
and Asia have all recognized the necessity to establish solid standards for communicating
between all the "smart" devices. For interoperability purposes, it has been recognized, at an
early stage, that widely shared semantics would be necessary. Unfortunately, the semantic
models used by the technical groups have differed from the start due to the different needs for
information exchange within substations and information exchange within control centres. This
has led to some gaps between the models within different standards, even though they
reflected the same power system entities. Various institutions have requested that we narrow
the gaps:
• NIST has recommended harmonization as a mechanism to decrease cost of integration in
the Smart Grid.
• CEN/CENELEC/ETSI Smart Grid Coordination Group report states: "Harmonized
electronic data model and description language are missing” and strongly recommends the
study of “Harmonized glossary, semantic & modelling between CIM and IEC 61850”.
• ENTSO-E letter states: "There is also a need to perform a harmonization between
IEC 61850 and IEC CIM (Common Information Model) Standards [.] There are
applications which use both set of standards and significant improvements on
interoperability and data exchange between the applications should take place."
A number of studies and reports have already been produced on the subject of Harmonization
as listed in the Bibliography.

– 10 – IEC TS 62361-102:2018 © IEC 2018
POWER SYSTEMS MANAGEMENT AND ASSOCIATED INFORMATION
EXCHANGE – INTEROPERABILITY IN THE LONG TERM –

Part 102: CIM – IEC 61850 harmonization

1 Scope
This part of IEC 62361, which is a Technical Specification, outlines a technical approach for
achieving effective information exchange between power system installations governed by
IEC 61850 and business systems integrated with IEC CIM standard data exchanges, based
on a selected specific set of use cases, but also with the goal of creating a framework that will
extend successfully to other use cases in the future. This document includes proposals to
‘harmonize’ the two standards by adapting or extending existing information models and/or
defining new models, where such changes will enable more effective communication. Both
current and future directions of models will be considered. The report will take into account
existing standards for semantics, services, protocols, system configuration language, and
architecture.
It was intended to be coordinated with IEC 61850 and all affiliated subgroups as well as
IEC 61968 and IEC 61970. This edition of the document was prepared based on Edition 2 of
IEC 61850-6 (2009), IEC 61850-7-3 and IEC 61850-7-4 and has been updated to match the
forthcoming Edition 2.1. Mapping to other parts of IEC 61850 is incomplete. Mapping has
been considered for the CIM classes defined in IEC 61970-301. The mapping to CIM classes
defined in IEC 61968-11 and other standards is incomplete.
This document suggests a technical approach by which two of the leading standards for
software interoperability that serve the electric utility industry (the Common Information
Model, CIM, and the IEC 61850 model) can cooperate in order to enable effective data
exchanges between the domains covered by these standards. Both of these standards are
maintained by the International Electrotechnical Committee (IEC).
A number of studies and reports have already been produced on the subject of harmonization
as listed in the Bibliography.
The work leading to this Technical Specification has considered how exchanges required by
commonly understood use cases might be mapped between the standard models in order to
determine the harmonizing changes suggested for the relevant models. The report references
any papers, reports or other documents that provided data for this harmonization.
The approach is to define a transformation of the data governed by IEC 61850 SCL XSD to
data governed by CIM UML. The transformations in this document are defined based on the
use cases presented in this document. Only SCL data relevant to these use cases is
transformed.
The aim is to allow the development of tools that perform automatic transformation from an
SCL instance file into a CIM based instance model that can then be exported using existing
standards such as IEC 61970-552: CIMXML Model exchange format.
These transformations will result in CIM-side processes that can distribute the information as
needed for configuration of specific CIM applications. It is also presumed that the result of this
exchange will be to enable creation of real-time CIM-side clients for IEC 61850 system data.
The heart of the SCL to CIM transformation specification defined in this document is a
mapping between the two information models. Wherever this mapping has been judged to be
unnecessarily complex, changes have been recommended to the existing information models.

A major objective, however, has been to define a solution that does not change either SCL or
CIM UML without a mechanism to supply backward compatibility.
The transformation specification is only for structural modelling. IEC 61970-301 states “CIM
entities have no behaviour.” IEC 61850-5 states “the behaviour of the functions itself are .
outside the scope of this standard”.
This document is a Technical Specification − not a standard. Paragraphs introduced by the
word Recommendation are recommendations for revisions to some of the IEC 61850 and CIM
standards. It is anticipated that if these recommendations are accepted, then this report can
be revised and elevated to a standard.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC TS 61850-2, Communication networks and systems in substations – Part 2: Glossary
IEC 61850-6:2009, Communication networks and systems for power utility automation –
Part 6: Configuration description language for communication in electrical substations related
to IEDs
IEC 61850-7-3, Communication networks and systems for power utility automation – Part 7-3:
Basic communication structure – Common data classes
IEC 61850-7-4, Communication networks and systems for power utility automation – Part 7-4:
Basic communication structure – Compatible logical node classes and data object classes
IEC TS 61850-80-1:2009, Communication networks and systems for power utility automation
– Part 80-1: Guideline to exchanging information from a CDC-based data model using
IEC 60870-5-101 or IEC 60870-5-104
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 61970-301:2013, Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base
IEC 61970-452:2015, Energy management system application program interface (EMS-API) –
Part 452: CIM static transmission network model profiles
IEC 81346-1, Industrial systems, installations and equipment and industrial products –
Structuring principles and reference designations – Part 1: Basic rules
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC TS 61850-2,
IEC 61850-6 and IEC TS 61970-2 and the following apply.

– 12 – IEC TS 62361-102:2018 © IEC 2018
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
NOTE The following terms and definitions are critical to the understanding of this document and are repeated
here for convenience.
3.1 Terms and definitions
3.1.1
Common Information Model
CIM
abstract model that represents all the major objects in an electric utility enterprise typically
needed to model the operational aspects of a utility, which includes public classes and
attributes for these objects, as well as the relationships between them
Note 1 to entry: The objects represented in the CIM are abstract in nature and may be used in a wide variety of
applications. The use of the CIM goes far beyond its application in an EMS. This document should be understood
as a tool to enable integration in any domain where a common power system model is needed to facilitate
interoperability and plug compatibility between applications and systems independent of any particular
implementation.
Note 2 to entry: IEC 61970-301 defines the CIM Base set of packages which provide a logical view of the
functional aspects of an Energy Management System including SCADA. Other functional areas are standardized in
separate IEC documents that augment and reference this base CIM standard. For example, IEC 61968-11
addresses distribution models and references this base CIM standard. While there are multiple IEC standards
dealing with different parts of the CIM, there is a single, unified information model comprising the CIM behind all
these individual standards documents.
[SOURCE: IEC 61970-301:2016, Introduction]
3.1.2
System Configuration description Language
SCL
file format for describing communication-related IED (Intelligent Electronic Device)
configurations and IED parameters, communication system configurations, switch yard
(function) structures, and the relations between them, the main purpose of which is to
exchange IED capability descriptions and SA system descriptions between IED engineering
tools and the system engineering tools of different manufacturers in a compatible way
3.2 Abbreviated terms
In general, the abbreviations defined in IEC TS 61850-2 or IEC TS 61970-2 apply. The
following abbreviations are particularly useful for understanding this document and are
repeated here for convenience:
CDC Common Data Class [IEC 61850]
CIM Common Information Model
DA Data Attribute [IEC 61850]
DMS Distribution Management System
DO Data Object [IEC 61850]
EMS Energy Management System
ICD IED Capability Description [IEC 61850]
IID Instantiated IED Description [IEC 61850]
IED Intelligent Electronic Device [IEC 61850]
LD Logical Device [IEC 61850]
LN Logical Node [IEC 61850]
SCADA Supervisory Control and Data Acquisition
SCD System Configuration Description [IEC 61850]
SCL System Configuration description Language [IEC 61850]
SCT System Configuration Tool
SED System Exchange Description [IEC 61850]
SSD System Specification Description [IEC 61850]
UUID Universally Unique Identifier
4 Use case summary
4.1 General
A number of use case titles were proposed. As the subject is complex, it was decided to
concentrate on the use case SCADA/EMS/DMS configuration from IEC 61850 SCL. This is
based on the top-down approach to substation automation design described in IEC 61850-4
and IEC 61850-6.
It is expected that the mapping rules determined by mapping from IEC 61850 to CIM will be a
good base for developing mappings for other use cases that take information from CIM to
IEC 61850.
The following use cases have been considered. For further details, see Annex A, Use case
details.
4.2 SCADA/EMS/DMS configuration from IEC 61850 SCL
NOTE This use case is written using the example of a transmission substation automation system, but the general
steps are applicable to any power system related local automation system.
• The use case starts with requirements specification determined by a planning department
e.g. following a request for a new connection or a review of assets or load growth. In this
use case the requirements are expected to be defined in paper form, not in a CIM
electronic format. [Managing requirements in electronic format is another use case]
The next few steps of the use case use the top-down engineering process described in more
detail in IEC 61850-4 and IEC 61850-6. IEC 61850-6 refers to a number of different types of
software tool for creating and editing different types of SCL file. In this document the term
System Configuration Tool (SCT) is used as a generic term for multi-function software tools
that are capable of system specification and system configuration.
• The System Configuration Tool (SCT) is used by a System Engineer to model any SCL
defined installation, for example an electrical substation. The process starts by creating a
formal specification of the system requirements. The engineer inputs information on
primary equipment types, names and connectivity, typically based on the station's single
line diagram. The required monitoring, protection, local automation and other functions
may be described as template Logical Nodes that are allocated to the equipment or
container instances.
• This formal model can be exported from the System
...