IEC 61784-5-21:2018
(Main)Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses - Installation profiles for CPF 21
Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses - Installation profiles for CPF 21
IEC 61784-5-21:2018 specifies the installation profiles for CPF 21 (FL-net).
This contribution contains a number of related files covering the communication profiles to be used with IEC 61918.
This installation profile documents contained herewith provide the installation profiles of the communication profiles (CP) of a specific communication profile family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by supplementing, modifying, or replacing the other requirements. The installation profiles are specified in Annex A. This annex is read in conjunction with IEC 61918.
Réseaux de communication industriels - Profils - Partie 5-21: Installation de bus de terrain - Profils d’installation pour CPF 21
L’IEC 61784-5-21:2018 définit le profil d’installation pour la CPF 21 (FL-net).
Le profil d’installation est spécifié à l’Annexe A. L’annexe est lue conjointement avec l’IEC 61918:2018.
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IEC 61784-5-21 ®
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INTERNATIONAL
STANDARD
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Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
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IEC 61784-5-21 ®
Edition 1.0 2018-08
INTERNATIONAL
STANDARD
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Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-6012-8
– 2 – IEC 61784-5-21:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
4 CPF 21: Overview of installation profiles . 7
5 Installation profile conventions . 8
6 Conformance to installation profiles . 8
Annex A (normative) CP 21/1 (FL-net) specific installation profile . 10
A.1 Installation profile scope . 10
A.2 Normative references . 10
A.3 Installation profile terms, definitions, and abbreviated terms . 10
A.4 Installation planning . 10
A.4.1 General . 10
A.4.2 Planning requirements . 10
A.4.3 Network capabilities. 11
A.4.4 Selection and use of cabling components . 14
A.4.5 Cabling planning documentation . 18
A.4.6 Verification of cabling planning specification . 18
A.5 Installation implementation . 18
A.5.1 General requirements . 18
A.5.2 Cable installation . 18
A.5.3 Connector installation . 19
A.5.4 Terminator installation . 19
A.5.5 Device installation . 19
A.5.6 Coding and labelling . 19
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 19
A.5.8 As-implemented cabling documentation . 19
A.6 Installation verification and installation acceptance test . 19
A.6.1 General . 19
A.6.2 Installation verification . 19
A.6.3 Installation acceptance test . 20
A.7 Installation administration . 20
A.8 Installation maintenance and installation troubleshooting . 20
Bibliography . 21
Figure 1 – Standards relationships . 6
Table A.1 – Network characteristics for balanced cabling based on Ethernet . 12
Table A.2 – Network characteristics for optical fibre cabling . 13
Table A.3 – Information relevant to copper cable: fixed cables . 14
Table A.4 – Information relevant to copper cable: cords . 14
Table A.5 – Information relevant to optical fibre cables . 15
Table A.6 – Connectors for balanced cabling CPs based on Ethernet . 16
Table A.7 – Optical fibre connecting hardware . 16
Table A.8 – Relationship between FOC and fibre types (CP 21/1) . 16
Table A.9 – Parameters for balanced cables . 18
Table A.10 – Parameters for silica optical fibre cables . 18
– 4 – IEC 61784-5-21:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-21: Installation of fieldbuses –
Installation profiles for CPF 21
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 61784-5-21 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This document is to be used in conjunction with IEC 61918:2018.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65C/924/FDIS 65C/925/RVD
Full information on the voting for the approval of this International Standard 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 of IEC 61784-5 series, under the general title Industrial communications
networks – Profiles – Installation of fieldbuses, 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 web site 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.
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.
– 6 – IEC 61784-5-21:2018 © IEC 2018
INTRODUCTION
This International Standard is one of a series produced to facilitate the use of communication
networks in industrial control systems.
IEC 61918:2018 provides the common requirements for the installation of communication
networks in industrial control systems. This installation profile document provides the
installation profiles of the communication profiles (CP) of a specific communication profile
family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by
supplementing, modifying, or r
...
IEC 61784-5-21 ®
Edition 1.1 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
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Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
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
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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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.
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IEC 61784-5-21 ®
Edition 1.1 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-8651-7
REDLINE VERSION – 2 – IEC 61784-5-21:2018+AMD1:2024 CSV
© IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 9
4 CPF 21: Overview of installation profiles . 9
5 Installation profile conventions . 10
6 Conformance to installation profiles . 10
Annex A (normative) CP 21/1 (FL-net) specific installation profile . 12
A.1 Installation profile scope . 12
A.2 Normative references . 12
A.3 Installation profile terms, definitions, and abbreviated terms . 12
A.4 Installation planning . 12
A.4.1 General . 12
A.4.2 Planning requirements . 12
A.4.3 Network capabilities. 13
A.4.4 Selection and use of cabling components . 16
A.4.5 Cabling planning documentation . 20
A.4.6 Verification of cabling planning specification . 20
A.5 Installation implementation . 20
A.5.1 General requirements . 20
A.5.2 Cable installation . 20
A.5.3 Connector installation . 21
A.5.4 Terminator installation . 21
A.5.5 Device installation . 21
A.5.6 Coding and labelling . 21
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 21
A.5.8 As-implemented cabling documentation . 21
A.6 Installation verification and installation acceptance test . 21
A.6.1 General . 21
A.6.2 Installation verification . 21
A.6.3 Installation acceptance test . 22
A.7 Installation administration . 22
A.8 Installation maintenance and installation troubleshooting . 22
Bibliography . 23
Figure 1 – Standards relationships . 7
Table A.1 – Network characteristics for balanced cabling based on Ethernet . 14
Table A.2 – Network characteristics for optical fibre cabling . 15
Table A.3 – Information relevant to copper cable: fixed cables . 16
Table A.4 – Information relevant to copper cable: cords . 16
Table A.5 – Information relevant to optical fibre cables . 17
Table A.6 – Connectors for balanced cabling CPs based on Ethernet . 18
Table A.7 – Optical fibre connecting hardware . 18
© IEC 2024
Table A.8 – Relationship between FOC and fibre types (CP 21/1) . 18
Table A.9 – Parameters for balanced cables . 20
Table A.10 – Parameters for silica optical fibre cables . 20
REDLINE VERSION – 4 – IEC 61784-5-21:2018+AMD1:2024 CSV
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-21: Installation of fieldbuses –
Installation profiles for CPF 21
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s),
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 61784-5-21 edition 1.1 contains the first edition (2018-08) [documents 65C/924/FDIS
and 65C/925/RVD] and its amendment 1 (2024-03) [documents 65C/1283/FDIS and
65C/1297/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in this
publication.
© IEC 2024
International Standard IEC 61784-5-21 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This document is to be used in conjunction with IEC 61918:2018, IEC 61918:2018/AMD1:2022
and IEC 61918:2018/AMD2:2024.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65C/924/FDIS 65C/925/RVD
Full information on the voting for the approval of this International Standard 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 of IEC 61784-5 series, under the general title Industrial communications
networks – Profiles – Installation of fieldbuses, can be found on the IEC website.
The committee has decided that the contents of this document and its amendment will remain
unchanged until the stability date indicated on the IEC website under webstore.iec.ch in the
data related to the specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
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 co
...
IEC 61784-5-21 ®
Edition 1.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
Réseaux de communication industriels – Profils –
Partie 5-21: Installation de bus de terrain – Profils d’installation pour CPF 21
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
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IEC 61784-5-21 ®
Edition 1.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21
Réseaux de communication industriels – Profils –
Partie 5-21: Installation de bus de terrain – Profils d’installation pour CPF 21
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-9200-6
– 2 – IEC 61784-5-21:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
4 CPF 21: Overview of installation profiles . 7
5 Installation profile conventions . 8
6 Conformance to installation profiles . 8
Annex A (normative) CP 21/1 (FL-net) specific installation profile . 10
A.1 Installation profile scope . 10
A.2 Normative references . 10
A.3 Installation profile terms, definitions, and abbreviated terms . 10
A.4 Installation planning . 10
A.4.1 General . 10
A.4.2 Planning requirements . 10
A.4.3 Network capabilities. 11
A.4.4 Selection and use of cabling components . 14
A.4.5 Cabling planning documentation . 18
A.4.6 Verification of cabling planning specification . 18
A.5 Installation implementation . 18
A.5.1 General requirements . 18
A.5.2 Cable installation . 18
A.5.3 Connector installation . 19
A.5.4 Terminator installation . 19
A.5.5 Device installation . 19
A.5.6 Coding and labelling . 19
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 19
A.5.8 As-implemented cabling documentation . 19
A.6 Installation verification and installation acceptance test . 19
A.6.1 General . 19
A.6.2 Installation verification . 19
A.6.3 Installation acceptance test . 20
A.7 Installation administration . 20
A.8 Installation maintenance and installation troubleshooting . 20
Bibliography . 21
Figure 1 – Standards relationships . 6
Table A.1 – Network characteristics for balanced cabling based on Ethernet . 12
Table A.2 – Network characteristics for optical fibre cabling . 13
Table A.3 – Information relevant to copper cable: fixed cables . 14
Table A.4 – Information relevant to copper cable: cords . 14
Table A.5 – Information relevant to optical fibre cables . 15
Table A.6 – Connectors for balanced cabling CPs based on Ethernet . 16
Table A.7 – Optical fibre connecting hardware . 16
Table A.8 – Relationship between FOC and fibre types (CP 21/1) . 16
Table A.9 – Parameters for balanced cables . 18
Table A.10 – Parameters for silica optical fibre cables . 18
– 4 – IEC 61784-5-21:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-21: Installation of fieldbuses –
Installation profiles for CPF 21
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.
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