IEC TS 61850-7-7:2018

IEC TS 61850-7-7 ®
Edition 1.0 2018-03
TECHNICAL
SPECIFICATION
colour
inside
Communication networks and systems for power utility automation –
Part 7-7: Machine-processable format of IEC 61850-related data models for tools

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IEC TS 61850-7-7 ®
Edition 1.0 2018-03
TECHNICAL
SPECIFICATION
colour
inside
Communication networks and systems for power utility automation –

Part 7-7: Machine-processable format of IEC 61850-related data models for tools

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-5443-1

– 2 – IEC TS 61850-7-7:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
1.1 General . 7
1.2 Namespace name and version . 7
1.3 Code Component distribution . 8
2 Normative references . 9
3 Terms and definitions . 9
4 Abbreviated terms. 10
5 Use cases . 10
5.1 Generation of SCL data type templates for system specification . 10
5.1.1 Description of the use case . 10
5.1.2 Technical details . 12
5.1.3 Information exchanged . 13
5.2 Generation of SCL data type templates for ICD files . 13
5.2.1 Description of the use case . 13
5.2.2 Technical details . 15
5.2.3 Information exchanged . 16
5.3 Validation of data model conformity . 16
5.3.1 Description of the use case . 16
5.3.2 Diagrams of use case . 17
5.3.3 Technical details . 18
5.4 Definition of private data model extensions by following the rules of the
standard . 19
5.4.1 Description of the use case . 19
5.4.2 Diagrams of use case . 20
5.4.3 Technical details . 21
5.4.4 Information exchanged . 22
5.5 Supporting the IEC 61850 data model change management . 22
5.5.1 Description of the use case . 22
5.5.2 Diagrams of use case . 24
5.5.3 Technical details . 26
5.5.4 Information exchanged . 27
5.5.5 Common terms and definitions . 28
6 Namespace file breakdown . 28
6.1 General . 28
6.2 Namespace dependencies . 28
6.3 Namespace types . 30
6.3.1 General. 30
6.3.2 Core namespace . 30
6.3.3 Domain namespace . 30
6.3.4 Technical report namespace . 30
6.3.5 Private namespace . 31
7 Overview of the format . 31
7.1 General . 31
7.2 File types . 31

7.2.1 NSD . 31
7.2.2 SNSD . 35
7.2.3 AppNS . 36
7.2.4 NSDoc . 37
7.3 NSD usage convention . 37
7.3.1 General. 37
7.3.2 Element identification . 38
7.3.3 Inheritance and extension . 38
7.3.4 DataObject parameterization . 39
7.3.5 CDC variants . 40
7.4 Naming convention . 40
7.4.1 File extension . 40
7.4.2 File name . 40
7.5 Example . 41
7.5.1 General. 41
7.5.2 NSD file example . 41
7.5.3 SNSD file example . 41
7.5.4 AppNS file example . 42
7.5.5 NSDoc file example . 42
8 File usage . 42
8.1 General . 42
8.2 System specification creation . 42
8.3 Manufacturer IED creation . 43
8.4 Creation of a non-standard name space . 43
8.5 IED data model validation . 44
8.6 Data model update management . 44
Annex A (normative) Schema NSD.xsd . 45
Schema IECCopyright.xsd . 68

Figure 1 – Generation of SCL data type templates for system specification diagrams . 12
Figure 2 – Generation of SCL data type templates for ICD files diagrams . 15
Figure 3 – Validation of data model conformity diagrams . 18
Figure 4 – Definition of private data model extensions by following the rules of the
standard diagrams . 21
Figure 5 – Supporting the IEC 61850 data model change management . 25
Figure 6 – Namespace dependencies . 29
Figure 7 – Service Namespace usage . 30
Figure 8 – Abstract LNClass hierarchy example . 34
Figure 9 – Specification type creation example . 43

– 4 – IEC TS 61850-7-7:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMMUNICATION NETWORKS AND
SYSTEMS FOR POWER UTILITY AUTOMATION –

Part 7-7: Machine-processable format
of IEC 61850-related data models for tools

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,
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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.
...