IEC TS 62771:2012

Information model covering the contents of IEC 81346-1 and IEC 81346-2, IEC 61175, IEC 61666 and IEC 81714-3

IEC/TS 62771:2012(E) contains a formal reference information model of the concepts and methods established in IEC 81346-1, IEC 81346-2, IEC 61175, IEC 61666 and IEC 81714-3, which are its normative basis.

General Information

• Status: Published
• Publication Date: 07-Aug-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 01.040.01 - Generalities. Terminology. Standardization. Documentation (Vocabularies)
• ICS: 01.040.35 - Information technology (Vocabularies)
• Technical Committee: TC 3 - Documentation, graphical symbols and representations of technical information
• Current Stage: PPUB - Publication issued
• Start Date: 15-Nov-2012
• Completion Date: 08-Aug-2012

Standards Content (Sample)

IEC/TS 62771 ®
Edition 1.0 2012-08
TECHNICAL
SPECIFICATION
colour
inside
Information model covering the contents of IEC 81346-1 and IEC 81346-2,
IEC 61175, IEC 61666 and IEC 81714-3

IEC/TS 62771:2012(E)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].

IEC/TS 62771 ®
Edition 1.0 2012-08
TECHNICAL
SPECIFICATION
colour
inside
Information model covering the contents of IEC 81346-1 and IEC 81346-2,

IEC 61175, IEC 61666 and IEC 81714-3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
S
ICS 01.040.01; 01.040.35 ISBN 978-2-83220-309-5

– 2 – TS 62771  IEC:2012(E)
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
Annex A (normative) Reference information model . 7
Annex B (normative) Data Element Type definitions . 18
Bibliography . 21

Figure 1 – Graphical presentation of the SCHEMA
MODEL_FOR_DESIGNATION_OF_OBJECTS_AND_TERMINALS . 17

TS 62771  IEC:2012(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INFORMATION MODEL COVERING THE CONTENTS
OF IEC 81346-1 AND IEC 81346-2, IEC 61175, IEC 61666 AND IEC 81714-3

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.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62771, which is a technical specification, has been prepared by IEC technical committee
3: Information structures, documentation and graphical symbols.

– 4 – TS 62771  IEC:2012(E)
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
3/1080/DTS 3/1102/RVC
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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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
• 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
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.
TS 62771  IEC:2012(E) – 5 –
INFORMATION MODEL COVERING THE CONTENTS
OF IEC 81346-1 AND IEC 81346-2, IEC 61175, IEC 61666 AND IEC 81714-3

1 Scope
This Technical Specification contains a formal reference information model of the concepts
and methods established in IEC 81346-1, IEC 81346-2, IEC 61175, IEC 61666 and
IEC 81714-3, which are its normative basis.
The information model is normative with respect to data exchange.
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 61175:2005, Industrial systems, installations and equipment and industrial products –
Designation of signals
IEC 61360-1, Standard data elements types with associated classification scheme for electric
items – Part 1: Definitions – Principles and methods
IEC 61360-DB, IEC Common Data Dictionary
IEC 61666, Industrial systems, installations and equipment and industrial products –
Identification of terminals within a system
IEC 81346-1, Industrial systems, installations and equipment and industrial products –
Structuring principles and reference designations – Part 1: Basic rules
IEC 81346-2, Industrial systems, installations and equipment and industrial products –
Structuring principles and reference designations – Part 2: Classification of objects and codes
for classes
IEC 81714-3, Design of graphical symbols for use in the technical documentation of products
– Part 3: Classification of connect nodes, networks and their encoding
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 81346-1, IEC
81346-2, IEC 61175, IEC 61666, and IEC 8174-3 apply.
___________
At the next revision the title of the IEC 61360 series will be modified to: Standard data element types with
associated classification scheme for products and services, with Part 1: Definitions, principles and methods,
Part 2: EXPRESS Dictionary schema, Part 4: IEC reference collection for products and services used in
electrotechnology, and Part 5: Extensions to the EXPRESS dictionary schema. Likewise the title of the
database will be: IEC 61360-DB: IEC Common Data Dictionary.

– 6 – TS 62771  IEC:2012(E)
4 General
The standards IEC 81346-1, IEC 81346-2, IEC 61175, IEC 61666 and IEC 81714-3 are
interrelated, but the concepts used in these standards have so far only been dealt with
separately in the different publications. The purpose of the present technical specification is
to illustrate their relations by means of a common reference information model.
When data is transferred or exchanged, the exchange shall conform to this reference model.
The model is conceptual and independent from any implementation method.
For the preparation of the information model, the EXPRESS modelling language, described in
ISO 10303-11, has been used. The graphical form is presented using EXPRESS-G.
The information model is contained in Annex A.
0 provides an overview by means of a graphical representation of the structure and
constraints of the application objects. The computer interpretable textual form is represented
in A.3.
A.1 lists the entities and attributes of the information model and A.2 contains the detailed
verbal descriptions of the entities and attributes.
The reference information model depicts the requirements set up, using where possible
available subsets of application reference models of the ISO 10303 series.
The model is not intended to be complete within the framework of neither integrated resource
models nor application reference models developed within the ISO 10303 series. It is
complete with respect to the requirements established within this publication.
NOTE 1 For an introduction to EXPRESS-G, see http://tc3.iec.ch/txt/xpress.pdf.
NOTE 2 Annex A is available in the English language only.
Annex B contains a set of source definitions for Data Element Types (DETs) derived from the
common reference information model.

TS 62771  IEC:2012(E) – 7 –
Annex A
(normative)
Reference information model
A.1 List of entities and attributes
This clause provides an alphabetically ordered list of the entities and attributes of the
reference information model described in this Annex.
A.2.1 Domain . 8
A.2.1.1 classified_as S[0:?] . 8
A.2.1.2 related_to . 8
A.2.1.3 id . 8
A.2.2 Object .
...