IEC 61784-5-3:2018

IEC 61784-5-3 ®
Edition 4.1 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3

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IEC 61784-5-3 ®
Edition 4.1 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-8672-2
REDLINE VERSION – 2 – IEC 61784-5-3:2018+AMD1:2024 CSV
 IEC 2024
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
INTRODUCTION to Amendment 1 . 11
1 Scope . 12
2 Normative references . 12
3 Terms, definitions and abbreviated terms . 12
4 CPF 3: Overview of installation profiles . 13
5 Installation profile conventions . 13
6 Conformance to installation profiles . 14
Annex A (normative) CP 3/1 (PROFIBUS) specific installation profile . 15
A.1 Installation profile scope . 15
A.2 Normative references . 15
A.3 Installation profile terms, definitions, and abbreviated terms . 15
A.3.1 Terms and definitions . 15
A.3.2 Abbreviated terms . 16
A.3.3 Conventions for installation profiles . 16
A.4 Installation planning . 16
A.4.1 General . 16
A.4.2 Planning requirements . 16
A.4.3 Network capabilities. 18
A.4.4 Selection and use of cabling components . 20
A.4.5 Cabling planning documentation . 30
A.4.6 Verification of cabling planning specification . 30
A.5 Installation implementation . 30
A.5.1 General requirements . 30
A.5.2 Cable installation . 30
A.5.3 Connector installation . 32
A.5.4 Terminator installation . 36
A.5.5 Device installation . 36
A.5.6 Coding and labelling . 36
A.5.7 Earthing and bonding of equipment and device and shielded cabling . 37
A.5.8 As-implemented cabling documentation . 38
A.6 Installation verification and installation acceptance test . 38
A.6.1 General . 38
A.6.2 Installation verification . 38
A.6.3 Installation acceptance test . 40
A.7 Installation administration . 45
A.8 Installation maintenance and installation troubleshooting . 45
Annex B (normative) CP 3/2 (PROFIBUS) specific installation profile . 46
B.1 Installation profile scope . 46
B.2 Normative references . 46
B.3 Installation profile terms, definitions, and abbreviated terms . 46
B.3.1 Terms and definitions . 46
B.3.2 Abbreviated terms . 47
B.3.3 Conventions for installation profiles . 47
B.4 Installation planning . 48

 IEC 2024
B.4.1 General . 48
B.4.2 Planning requirements . 49
B.4.3 Network capabilities. 56
B.4.4 Selection and use of cabling components . 62
B.4.5 Cabling planning documentation . 77
B.4.6 Verification of cabling planning specification . 77
B.5 Installation implementation . 77
B.5.1 General requirements . 77
B.5.2 Cable installation . 77
B.5.3 Connector installation . 78
B.5.4 Terminator installation . 79
B.5.5 Device installation . 79
B.5.6 Coding and labelling . 79
B.5.7 Earthing and bonding of equipment and device and shielded cabling . 79
B.5.8 As-implemented cabling documentation . 79
B.6 Installation verification and installation acceptance test . 79
B.6.1 General . 79
B.6.2 Installation verification . 80
B.6.3 Installation acceptance test . 80
B.7 Installation administration . 81
B.8 Installation maintenance and installation troubleshooting . 81
Annex C (normative) CP 3/3, CP 3/4, CP 3/5, CP 3/6 (PROFINET) specific installation
profile . 82
C.1 Installation profile scope . 82
C.2 Normative references . 82
C.3 Installation profile terms, definitions, and abbreviated terms . 82
C.3.1 Terms and definitions . 82
C.3.2 Abbreviated terms . 82
C.3.3 Conventions for installation profiles . 83
C.4 Installation planning . 83
C.4.1 General . 83
C.4.2 Planning requirements . 83
C.4.3 Network capabilities. 83
C.4.4 Selection and use of cabling components . 86
C.4.5 Cabling planning documentation . 108
C.4.6 Verification of cabling planning specification . 108
C.5 Installation implementation . 108
C.5.1 General requirements . 108
C.5.2 Cable installation . 108
C.5.3 Connector installation . 110
C.5.4 Terminator installation . 112
C.5.5 Device installation . 112
C.5.6 Coding and labelling . 112
C.5.7 Earthing and bonding of equipment and device and shielded cabling . 113
C.5.8 As-implemented cabling documentation . 114
C.6 Installation verification and installation acceptance test . 114
C.6.1 General . 114
C.6.2 Installation verification . 114
C.6.3 Installation acceptance test . 115

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C.7 Installation administration . 116
C.8 Installation maintenance and installation troubleshooting . 116
Bibliography . 117

Figure 1 – Standards relationships . 10
Figure A.1 – Recommended combination of shielding and earthing for CP 3/1
networks with RS 485-IS . 28
Figure A.2 – Sub-D connector pin numberings (front view) . 33
Figure A.3 – 5-pin M12 female socket . 34
Figure A.4 – 5-pin M12 male plug for CP 3/1 . 35
Figure A.5 – Test circuit A – Resistance measurement of data line B and shield . 41
Figure A.6 – Test circuit B – Resistance measurement of data line A and shield . 41
Figure A.7 – Test circuit C – Resistance measurement of data line A, data line B, and
shield . 41
Figure A.8 – Test circuit D – Resistance measurement between data line A and B. 42
Figure A.9 – Resistance measurement without 9-pin Sub-D plug . 42
Figure A.10 – Loop core resistance (cable type A) . 43
Figure A.11 – Action and resolution tree for measurement 1 (RS 485 and RS 485-IS) . 43
Figure A.12 – Action and resolution tree for measurement 2 (RS 485 and RS 485-IS) . 44
Figure A.13 – Action and resolution tree for measurement 3 (RS 485 and RS 485-IS) . 44
Figure B.1 – Connection of CP 3/1 networks . 49
Figure B.2 – Typical fieldbus architecture . 52
Figure B.3 – Fieldbus with stations supplied by auxiliary power sources . 52
Figure B.4 – Fieldbus model . 55
Figure B.5 – Current modulation (Manchester II code) . 55
Figure B.6 – Tree topology . 57
Figure B.7 – Bus topology . 57
Figure B.8 – Combination of the tree topology and the bus topology . 58
Figure B.9 – Fieldbus extension . 58
Figure B.10 – Recommended combination of shielding and earthing . 72
Figure B.11 – Ideal combination of shielding and earthing . 73
Figure B.12 – Capacitive earthing . 74
Figure B.13 – Galvanic isolated field device . 75
Figure B.14 – Pin assignment of the male and female connectors IEC 60947-5-2 (A-
coding) . 79
Figure C.1 – Definition of End-to-end link. 103
Figure C.2 – End-to-end link without interconnections . 103
Figure C.3 – Assembled End-to-end link . 103
Figure C.4 – Connectionless optical fibre link . 104
Figure C.5 – Assembled optical fibre link . 104
Figure C.6 – Shielded connectors for CP 3/3, CP 3/4, CP 3/5 and CP 3/6 fieldbus
networks . 110
Figure C.7 – Pin-assignment for a straight cable . 111

Table A.1 – Excerpt of MICE definition . 18

 IEC 2024
Table A.2 – Basic network characteristics for balanced cabling not based on Ethernet
(ISO/IEC 8802-3) . 19
Table A.3 – Network characteristics for optical fibre cabling . 20
Table A.4 – Information relevant to copper cable: fixed cables . 21
Table A.5 – Information relevant to optical fibre cables . 22
Table A.6 – Connectors for copper cabling CPs not based on Ethernet . 23
Table A.7 – Optical fibre connecting hardware . 23
Table A.8 – Relationship between FOC and fibre types (CP 3/1) . 23
Table A.9 – Parameters for balanced cables . 31
Table A.10 – Parameters for silica optical fibre cables . 31
Table A.11 – Parameters for POF optical fibre cables . 31
Table A.12 – Parameters for hard clad silica optical fibre cables . 32
Table A.13 – Use of 9 pin Sub-D connector pins (RS 485) . 33
Table A.14 – Use of 9 pin Sub-D connector pins (RS 485-IS) . 34
Table A.15 – Use of M12 connector pins (RS 485) . 35
Table A.16 – Use of M12 connector pins (RS 485-IS) . 36
Table A.17 – Maximum fibre channel attenuation for CP 3/1 (PROFIBUS) . 45
Table B.1 – Valid parameter range of the FISCO model for use as EEx ib IIC / IIB . 53
Table B.2 – Valid parameter range of the FISCO model for use as EEx ia IIC . 54
Table B.3 – Power supply (operational values) . 60
Table B.4 – Line lengths which can be achieved . 60
Table B.5 – Limit values for distortion, reflection and signal delay. 61
Table B.6 – Recommended maximum cable lengths including spurs . 61
Table B.7 – Recommended length of the spurs . 62
Table B.8 – Maximum length of the splices . 62
Table B.9 – Information relevant to copper cable: fixed cables . 63
Table B.10 – Safety limit values for the fieldbus cable . 64
Table B.11 – Connectors for copper cabling CPs not based on Ethernet . 65
Table B.12 – Mixing devices from different categories . 67
Table B.13 – Electrical characteristics of fieldbus interfaces . 68
Table B.14 – Recommended data sheet specifications for CP 3/2 devices . 69
Table B.15 – Parameters for balanced cables . 77
Table B.16 – Contact assignments for the external connector for harsh industrial

environments . 78
Table C.1 – General transmission media selection information . 84
Table C.2 – Network characteristics for balanced cabling based on Ethernet
(ISO/IEC 8802-3) . 85
Table C.3 – Network characteristics for optical fibre cabling . 85
Table C.4 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
type A fixed cables . 87
Table C.5 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6

type B flexible cables . 88
Table C.6 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
type C special cables . 89

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Table C.7 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
of cabinet cord sets . 90
Table C.8 – Requirement data cable inside and outside cabinet: CP 3/3, CP 3/4,

CP 3/5 and CP 3/6 type B flexible cables . 91
Table C.9 – Requirement to copper cable inside and outside cabinet: CP 3/3, CP 3/4,
CP 3/5 and CP 3/6 type B flexible cables . 92
Table C.10 – Information relevant to optical fibre cables . 93
Table C.11 – Requirements for plastic and hard clad silica optical fibre cables . 93
Table C.12 – Requirements for glass multimode optical fibre cables . 95
Table C.13 – Requirements for glass singlemode optical fibre cables . 96
Table C.14 – Requirements of industrial FO-cord sets . 97
Table C.15 – Standard of test of industrial FO-cord sets . 98
Table C.16 – Information relevant to hybrid cables (application type B) . 98
Table C.17 – Information relevant to hybrid cables (application type C) . 99
Table C.18 – Connectors for balanced cabling CPs based on Ethernet . 101
Table C.19 – Connectors for balanced cabling CPs not based on Ethernet . 101
Table C.20 – Connectors for balanced cabling CPs based on Ethernet . 101
Table C.21 – Optical fibre connecting hardware . 102
Table C.22 – Relationship between FOC and fibre types (CP 3/3, CP 3/4, CP 3/5,
CP3/6) . 102
Table C.23 – Typical fibre channels common for industrial applications. . 105
Table C.24 – Parameters for balanced cables . 109
Table C.25 – Parameters for silica optical fibre cables . 109
Table C.26 – Parameters for POF optical fibre cables . 109
Table C.27 – Parameters for hard clad silica optical fibre cables . 110
Table C.28 – Colour coding of 2 pair cabling for CP 3/3, CP 3/4, CP 3/5 and CP 3/6
connectors . 111
Table C.29 – Colour coding of 4 pair cabling for CP 3/3, CP 3/4, CP 3/5 and CP 3/6
connectors . 111
Table C.30 – Contact arrangement M12 2 pair to M12 4 pair for CP 3/3, CP 3/4, CP 3/5
and CP 3/6 connectors . 112
Table C.31 – Maximum fibre channel attenuation for CP 3/3, CP 3/4, CP 3/5 and
CP 3/6 (PROFINET) . 116

 IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-3: Installation of fieldbuses –
Installation profiles for CPF 3

FOREWORD
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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)
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respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s),
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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 61784-5-3 edition 4.1 contains the fourth edition (2013-11) [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.
REDLINE VERSION – 8 – IEC 61784-5-3:2018+AMD1:2024 CSV
 IEC 2024
International Standard IEC 61784-5-3 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.
This fourth edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) an addition of 4-pair cabling (see C.4.4.1.2.1and C.5.3.2);
b) an addition of the connector M12 X-Coding (see C.4.4.2.2);
c) an addition of the definition of End-to-end links (see C.4.4.3.1);
d) a revision of Table C.17 (see C.5.2.1);
e) a formula for the NEXT limits of End-to-end links (see C.6.3.2.1.2).
This standard is to be used in conjunction with IEC 61918:2018
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 communication
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 contents. Users should therefore print this document using a
colour printer.
 IEC 2024
INTRODUCTION
This International Standard document is one of a series produced to facilitate the use of
communication networks in industrial control systems.
IEC 61918:2018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024 provides the
common requirements for the installation of communication networks in industrial control
systems. This installation profile standard 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
replacing the other requirements (see Figure 1).
For general background on fieldbuses, their profiles, and relationship between the installation
profiles specified in this document, see IEC 61158-1.
Each CP installation profile is specified in a separate annex of this document. Each annex is
structured exactly as the reference standard IEC 61918 for the benefit of the persons
representing the roles in the fieldbus installation process as defined in IEC 61918 (planner,
installer, verification personnel, validation personnel, maintenance personnel, administration
personnel). By reading the installation profile in conjunction with IEC 61918, these persons
immediately know which requirements are common for the installation of all CPs and which
are modified or replaced. The conventions used to draft this document are defined in Clause 5.
The provision of the installation profiles in one standard for each CPF (for example
IEC 61784-5-3 for CPF 3), allows readers to work with standards of a convenient size.

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 IEC 2024
Figure 1 – Standards relationships

 IEC 2024
INTRODUCTION to Amendment 1
This Amendment 1 includes the following significant technical changes with respect to
Annex C describes new content of installation such as Robot Cable and two new rectangular
(one 8-way and one 10-way) connectors for Ethernet of industrial installation of Profinet.

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 IEC 2024
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-3: Installation of fieldbuses –
Installation profiles for CPF 3

1 Scope
This part of IEC 61784-5 specifies the installation profiles for CPF 3 (PROFIBUS/PROFINET) .
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024.
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 61918:2018 , Industrial communication networks – Installation of communication
networks in industrial premises
IEC 61918:2018/AMD1:2022
IEC 61918:2018/AMD2:2024
The normative references of IEC 61918:2018, Clause 2, apply.
NOTE For profile specific normative references, see Clause(s) A.2, B.2 and C.2.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms of
IEC 61918:2018, Clause 3, IEC 61918:2018/AMD1:2022, Clause 3, and Clauses A.3, B.3, C.3
of this document, 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
NOTE For profile specific terms, definitions and abbreviated terms see Clause(s) A.3, B.3 and C.3.
___________
PROFIBUS and PROFINET are trade names of the non-profit organization PROFIBUS Nutzerorganisation e.V.
(PNO). This information is given for the convenience of users of this document and does not constitute an
endorsement by IEC of the trade names holder or any of its products. Compliance to this profile does not
require use of the trade names. Use of the trade names PROFIBUS and PROFINET requires permission of the
trade name holder.
The normative references of IEC 61918:2018, Clause 2, IEC 61918:2018/AMD1:2022, Clause 2 and
IEC 61918:2018/AMD2:2024, Clause 2, apply.

 IEC 2024
4 CPF 3: Overview of installation profiles
CPF 3 consists of six communication profiles as specified in IEC 61784-1 and IEC 61784-2.
The installation requirements for CP 3/1 (PROFIBUS with physical layer according to RS 485,
RS 485-IS, and fibre) are specified in Annex A.
The installation requirements for CP 3/2 (PROFIBUS with physical layer according to MBP,
MBP-IS, MBP-LP) are specified in Annex B.
The installation requirements for CP 3/3, CP 3/4, CP 3/5, and CP 3/6 (PROFINET) are
specified in Annex C.
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this document corresponds to
the numbering of IEC 61918 main clauses and subclauses.
The annex clauses and subclauses of this document supplement, modify, or replace the
respective clauses and subclauses in IEC 61918.
Where there is no corresponding subclause of IEC 61918 in the normative annexes in this
document, the subclause of IEC 61918 applies without modification.
The annex heading letter represents the installation profile assigned in Clause 4. The annex
(sub)clause numbering following the annex letter shall represent the corresponding
(sub)clause numbering of IEC 61918.
EXAMPLE "Subclause B.4.4" in IEC 61784-5-3 means that CP 3/2 specifies the subclause 4.4 of IEC 61918.
All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each
normative installation profile annex.
If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause
applies.
If in a (sub)clause it is written "Not applicable.", then the corresponding
IEC 61918 (sub)clause does not apply.
If in a (sub)clause it is written "Addition:", then the corresponding IEC 61918 (sub)clause
applies with the additions written in the profile.
If in a (sub)clause it is written "Replacement:", then the text provided in the profile replaces
the text of the corresponding IEC 61918 (sub)clause.
NOTE A replacement can also comprise additions.
If in a (sub)clause it is written "Modification:", then the corresponding IEC 61918 (sub)clause
applies with the modifications written in the profile.
If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written
"(Sub)clause x has addition" (or "replacement", or "modification") or "(Sub)clause is not
applicable.", then (sub)clause x becomes valid as declared and all the other corresponding
IEC 61918 (sub)clauses apply.
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 IEC 2024
6 Conformance to installation profiles
Each installation profile within this document includes part of IEC 61918:2018. It may also
include defined additional specifications.
A statement of compliance to an installation profile of this document shall be stated as either
Compliance to IEC 61784-5-3:201x for CP 3/m  or
Compliance to IEC 61784-5-3 (Ed.4.0) for CP 3/m
Compliance with IEC 61784-5-3:2018 and IEC 61784-5-3:2018/AMD1:2024 for CP 3/m

or
Compliance with IEC 61784-5-3 (Ed.4.1) for CP 3/m .
where the name within the angle brackets < > is optional and the angle brackets are shall not
to be included. The m within CP 3/m shall be replaced by the profile number 1 to 6.
NOTE The name may can be the name of the profile, for example PROFIBUS or PROFINET.
If the name is a trade name then the permission of the trade name holder shall be required.
Product standards shall not include any conformity assessment aspects (including quality
management provisions), neither normative nor informative, other than provisions for product
testing (evaluation and examination).

___________
In accordance with ISO/IEC Directives.
The date should not be used when the edition number is used.

 IEC 2024
Annex A
(normative)
CP 3/1 (PROFIBUS) specific installation profile
A.1 Installation profile scope
Addition:
This annex specifies the installation profile for Communication Profile CP 3/1 (PROFIBUS with
a physical layer according to RS 485, RS 485-IS, and fibre). The CP 3/1 is specified in
IEC 61784-1.
A.2 Normative references
Addition:
IEC 60079-14, Explosive atmospheres – Part 14: Electrical installations design, selection and
erection
IEC 60079-11:2011, Explosive atmospheres – Part 11: Equipment protection by intrinsic
safety "i"
IEC 60512-6-3, Connectors for electronic equipment – Tests and measurements – Part 6-3:
Dynamic stress tests – Test 6c: Shock
IEC 60512-6-4, Connectors for electronic equipment – Tests and measurements – Part 6-4:
Dynamic stress tests – Test 6d: Vibration (sinusoidal)
IEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic
safety-related systems
ANSI TIA/EIA-485-A, Electrical Characteristics of Generators and Receivers for Use in
Balanced Digital Multipoint Systems
A.3 Installation profile terms, definitions, and abbreviated terms
A.3.1 Terms and definitions
Addition:
A.3.1.87
hazard
potential source of harm
Note 1 to entry: The term includes danger to persons a
...

IEC 61784-5-3 ®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3

Réseaux de communication industriels – Profils –
Partie 5-3: Installation des bus de terrain – Profils d’installation pour CPF 3

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IEC 61784-5-3 ®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3

Réseaux de communication industriels – Profils –

Partie 5-3: Installation des bus de terrain – Profils d’installation pour CPF 3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-9730-8

– 2 – IEC 61784-5-3:2018  IEC 2018
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 10
4 CPF 3: Overview of installation profiles . 10
5 Installation profile conventions . 11
6 Conformance to installation profiles . 11
Annex A (normative) CP 3/1 (PROFIBUS) specific installation profile . 13
A.1 Installation profile scope . 13
A.2 Normative references . 13
A.3 Installation profile terms, definitions, and abbreviated terms . 13
A.3.1 Terms and definitions . 13
A.3.2 Abbreviated terms . 14
A.3.3 Conventions for installation profiles . 14
A.4 Installation planning . 14
A.4.1 General . 14
A.4.2 Planning requirements . 14
A.4.3 Network capabilities. 16
A.4.4 Selection and use of cabling components . 18
A.4.5 Cabling planning documentation . 28
A.4.6 Verification of cabling planning specification . 28
A.5 Installation implementation . 28
A.5.1 General requirements . 28
A.5.2 Cable installation . 28
A.5.3 Connector installation . 30
A.5.4 Terminator installation . 34
A.5.5 Device installation . 34
A.5.6 Coding and labelling . 34
A.5.7 Earthing and bonding of equipment and device and shielded cabling . 35
A.5.8 As-implemented cabling documentation . 36
A.6 Installation verification and installation acceptance test . 36
A.6.1 General . 36
A.6.2 Installation verification . 36
A.6.3 Installation acceptance test . 38
A.7 Installation administration . 43
A.8 Installation maintenance and installation troubleshooting . 43
Annex B (normative) CP 3/2 (PROFIBUS) specific installation profile . 44
B.1 Installation profile scope . 44
B.2 Normative references . 44
B.3 Installation profile terms, definitions, and abbreviated terms . 44
B.3.1 Terms and definitions . 44
B.3.2 Abbreviated terms . 45
B.3.3 Conventions for installation profiles . 45
B.4 Installation planning . 46
B.4.1 General . 46

B.4.2 Planning requirements . 47
B.4.3 Network capabilities. 54
B.4.4 Selection and use of cabling components . 60
B.4.5 Cabling planning documentation . 75
B.4.6 Verification of cabling planning specification . 75
B.5 Installation implementation . 75
B.5.1 General requirements . 75
B.5.2 Cable installation . 75
B.5.3 Connector installation . 76
B.5.4 Terminator installation . 77
B.5.5 Device installation . 77
B.5.6 Coding and labelling . 77
B.5.7 Earthing and bonding of equipment and device and shielded cabling . 77
B.5.8 As-implemented cabling documentation . 77
B.6 Installation verification and installation acceptance test . 77
B.6.1 General . 77
B.6.2 Installation verification . 78
B.6.3 Installation acceptance test . 78
B.7 Installation administration . 79
B.8 Installation maintenance and installation troubleshooting . 79
Annex C (normative) CP 3/3, CP 3/4, CP 3/5, CP 3/6 (PROFINET) specific installation
profile . 80
C.1 Installation profile scope . 80
C.2 Normative references . 80
C.3 Installation profile terms, definitions, and abbreviated terms . 80
C.3.1 Terms and definitions . 80
C.3.2 Abbreviated terms . 80
C.3.3 Conventions for installation profiles . 80
C.4 Installation planning . 81
C.4.1 General . 81
C.4.2 Planning requirements . 81
C.4.3 Network capabilities. 81
C.4.4 Selection and use of cabling components . 84
C.4.5 Cabling planning documentation . 106
C.4.6 Verification of cabling planning specification . 106
C.5 Installation implementation . 106
C.5.1 General requirements . 106
C.5.2 Cable installation . 106
C.5.3 Connector installation . 108
C.5.4 Terminator installation . 110
C.5.5 Device installation . 110
C.5.6 Coding and labelling . 110
C.5.7 Earthing and bonding of equipment and device and shielded cabling . 111
C.5.8 As-implemented cabling documentation . 112
C.6 Installation verification and installation acceptance test . 112
C.6.1 General . 112
C.6.2 Installation verification . 112
C.6.3 Installation acceptance test . 113
C.7 Installation administration . 114

– 4 – IEC 61784-5-3:2018  IEC 2018
C.8 Installation maintenance and installation troubleshooting . 114
Bibliography . 115

Figure 1 – Standards relationships . 9
Figure A.1 – Recommended combination of shielding and earthing for CP 3/1

networks with RS 485-IS . 26
Figure A.2 – Sub-D connector pin numberings (front view) . 31
Figure A.3 – 5-pin M12 female socket . 32
Figure A.4 – 5-pin M12 male plug for CP 3/1 . 33
Figure A.5 – Test circuit A – Resistance measurement of data line B and shield . 39
Figure A.6 – Test circuit B – Resistance measurement of data line A and shield . 39
Figure A.7 – Test circuit C – Resistance measurement of data line A, data line B, and
shield . 39
Figure A.8 – Test circuit D – Resistance measurement between data line A and B. 40
Figure A.9 – Resistance measurement without 9-pin Sub-D plug . 40
Figure A.10 – Loop core resistance (cable type A) . 41
Figure A.11 – Action and resolution tree for measurement 1 (RS 485 and RS 485-IS) . 41
Figure A.12 – Action and resolution tree for measurement 2 (RS 485 and RS 485-IS) . 42
Figure A.13 – Action and resolution tree for measurement 3 (RS 485 and RS 485-IS) . 42
Figure B.1 – Connection of CP 3/1 networks . 47
Figure B.2 – Typical fieldbus architecture . 50
Figure B.3 – Fieldbus with stations supplied by auxiliary power sources . 50
Figure B.4 – Fieldbus model . 53
Figure B.5 – Current modulation (Manchester II code) . 53
Figure B.6 – Tree topology . 55
Figure B.7 – Bus topology . 55
Figure B.8 – Combination of the tree topology and the bus topology . 56
Figure B.9 – Fieldbus extension . 56
Figure B.10 – Recommended combination of shielding and earthing . 70
Figure B.11 – Ideal combination of shielding and earthing . 71
Figure B.12 – Capacitive earthing . 72
Figure B.13 – Galvanic isolated field device . 73
Figure B.14 – Pin assignment of the male and female connectors IEC 60947-5-2 (A-
coding) . 77
Figure C.1 – Definition of End-to-end link. 101
Figure C.2 – End-to-end link without interconnections . 101
Figure C.3 – Assembled End-to-end link . 101
Figure C.4 – Connectionless optical fibre link . 102
Figure C.5 – Assembled optical fibre link . 102
Figure C.6 – Shielded connectors for CP 3/3, CP 3/4, CP 3/5 and CP 3/6 fieldbus
networks . 108
Figure C.7 – Pin-assignment for a straight cable . 109

Table A.1 – Excerpt of MICE definition . 16

Table A.2 – Basic network characteristics for balanced cabling not based on Ethernet
(ISO/IEC 8802-3) . 17
Table A.3 – Network characteristics for optical fibre cabling . 18
Table A.4 – Information relevant to copper cable: fixed cables . 19
Table A.5 – Information relevant to optical fibre cables . 20
Table A.6 – Connectors for copper cabling CPs not based on Ethernet . 21
Table A.7 – Optical fibre connecting hardware . 21
Table A.8 – Relationship between FOC and fibre types (CP 3/1) . 21
Table A.9 – Parameters for balanced cables . 29
Table A.10 – Parameters for silica optical fibre cables . 29
Table A.11 – Parameters for POF optical fibre cables . 29
Table A.12 – Parameters for hard clad silica optical fibre cables . 30
Table A.13 – Use of 9 pin Sub-D connector pins (RS 485) . 31
Table A.14 – Use of 9 pin Sub-D connector pins (RS 485-IS) . 32
Table A.15 – Use of M12 connector pins (RS 485) . 33
Table A.16 – Use of M12 connector pins (RS 485-IS) . 34
Table A.17 – Maximum fibre channel attenuation for CP 3/1 (PROFIBUS) . 43
Table B.1 – Valid parameter range of the FISCO model for use as EEx ib IIC / IIB . 51
Table B.2 – Valid parameter range of the FISCO model for use as EEx ia IIC . 52
Table B.3 – Power supply (operational values) . 58
Table B.4 – Line lengths which can be achieved . 58
Table B.5 – Limit values for distortion, reflection and signal delay. 59
Table B.6 – Recommended maximum cable lengths including spurs . 59
Table B.7 – Recommended length of the spurs . 60
Table B.8 – Maximum length of the splices . 60
Table B.9 – Information relevant to copper cable: fixed cables . 61
Table B.10 – Safety limit values for the fieldbus cable . 62
Table B.11 – Connectors for copper cabling CPs not based on Ethernet . 63
Table B.12 – Mixing devices from different categories . 65
Table B.13 – Electrical characteristics of fieldbus interfaces . 66
Table B.14 – Recommended data sheet specifications for CP 3/2 devices . 67
Table B.15 – Parameters for balanced cables . 75
Table B.16 – Contact assignments for the external connector for harsh industrial

environments . 76
Table C.1 – General transmission media selection information . 82
Table C.2 – Network characteristics for balanced cabling based on Ethernet
(ISO/IEC 8802-3) . 83
Table C.3 – Network characteristics for optical fibre cabling . 83
Table C.4 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
type A fixed cables . 85
Table C.5 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6

type B flexible cables . 86
Table C.6 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
type C special cables . 87

– 6 – IEC 61784-5-3:2018  IEC 2018
Table C.7 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6
of cabinet cord sets . 88
Table C.8 – Requirement data cable inside and outside cabinet: CP 3/3, CP 3/4,

CP 3/5 and CP 3/6 type B flexible cables . 89
Table C.9 – Requirement to copper cable inside and outside cabinet: CP 3/3, CP 3/4,
CP 3/5 and CP 3/6 type B flexible cables . 90
Table C.10 – Information relevant to optical fibre cables . 91
Table C.11 – Requirements for plastic and hard clad silica optical fibre cables . 91
Table C.12 – Requirements for glass multimode optical fibre cables . 93
Table C.13 – Requirements for glass singlemode optical fibre cables . 94
Table C.14 – Requirements of industrial FO-cord sets . 95
Table C.15 – Standard of test of industrial FO-cord sets . 96
Table C.16 – Information relevant to hybrid cables (application type B) . 96
Table C.17 – Information relevant to hybrid cables (application type C) . 97
Table C.18 – Connectors for balanced cabling CPs based on Ethernet . 99
Table C.19 – Connectors for balanced cabling CPs not based on Ethernet . 99
Table C.20 – Connectors for balanced cabling CPs based on Ethernet . 99
Table C.21 – Optical fibre connecting hardware . 100
Table C.22 – Relationship between FOC and fibre types (CP 3/3, CP 3/4, CP 3/5,
CP3/6) . 100
Table C.23 – Typical fibre channels common for industrial applications. . 103
Table C.24 – Parameters for balanced cables . 107
Table C.25 – Parameters for silica optical fibre cables . 107
Table C.26 – Parameters for POF optical fibre cables . 107
Table C.27 – Parameters for hard clad silica optical fibre cables . 108
Table C.28 – Colour coding of 2 pair cabling for CP 3/3, CP 3/4, CP 3/5 and CP 3/6
connectors . 109
Table C.29 – Colour coding of 4 pair cabling for CP 3/3, CP 3/4, CP 3/5 and CP 3/6
connectors . 109
Table C.30 – Contact arrangement M12 2 pair to M12 4 pair for CP 3/3, CP 3/4, CP 3/5
and CP 3/6 connectors . 110
Table C.31 – Maximum fibre channel attenuation for CP 3/3, CP 3/4, CP 3/5 and
CP 3/6 (PROFINET) . 114

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-3: Installation of fieldbuses –
Installation profiles for CPF 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
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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
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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 61784-5-3 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This fourth edition cancels and replaces the third edition published in 2013. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) an addition of 4-pair cabling (see C.4.4.1.2.1and C.5.3.2);
b) an addition of the connector M12 X-Coding (see C.4.4.2.2);
c) an addition of the definition of End-to-end links (see C.4.4.3.1);

– 8 – IEC 61784-5-3:2018  IEC 2018
d) a revision of Table C.17 (see C.5.2.1);
e) a formula for the NEXT limits of End-to-end links (see C.6.3.2.1.2).
This standard 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 communication
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.
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.
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 standard 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 replacing the other requirements (see Figure 1).
For general background on fieldbuses, their profiles, and relationship between the installation
profiles specified in this document, see IEC 61158-1.
Each CP installation profile is specified in a separate annex of this document. Each annex is
structured exactly as the reference standard IEC 61918 for the benefit of the persons
representing the roles in the fieldbus installation process as defined in IEC 61918 (planner,
installer, verification personnel, validation personnel, maintenance personnel, administration
personnel). By reading the installation profile in conjunction with IEC 61918, these persons
immediately know which requirements are common for the installation of all CPs and which
are modified or replaced. The conventions used to draft this document are defined in Clause 5.
The provision of the installation profiles in one standard for each CPF (for example
IEC 61784-5-3 for CPF 3), allows readers to work with standards of a convenient size.

Figure 1 – Standards relationships

– 10 – IEC 61784-5-3:2018  IEC 2018
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-3: Installation of fieldbuses –
Installation profiles for CPF 3

1 Scope
This part of IEC 61784-5 specifies the installation profiles for CPF 3 (PROFIBUS/PROFINET) .
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2018.
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 61918:2018, Industrial communication networks – Installation of communication networks
in industrial premises
The normative references of IEC 61918:2018, Clause 2, apply.
NOTE For profile specific normative references, see Clause(s) A.2, B.2 and C.2.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms of IEC
61918:2018, Clause 3, 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
NOTE For profile specific terms, definitions and abbreviated terms see Clause(s) A.3, B.3 and C.3.
4 CPF 3: Overview of installation profiles
CPF 3 consists of six communication profiles as specified in IEC 61784-1 and IEC 61784-2.
___________
PROFIBUS and PROFINET are trade names of the non-profit organization PROFIBUS Nutzerorganisation e.V.
(PNO). This information is given for the convenience of users of this document and does not constitute an
endorsement by IEC of the trade names holder or any of its products. Compliance to this profile does not
require use of the trade names. Use of the trade names PROFIBUS and PROFINET requires permission of the
trade name holder.
The installation requirements for CP 3/1 (PROFIBUS with physical layer according to RS 485,
RS 485-IS, and fibre) are specified in Annex A.
The installation requirements for CP 3/2 (PROFIBUS with physical layer according to MBP,
MBP-IS, MBP-LP) are specified in Annex B.
The installation requirements for CP 3/3, CP 3/4, CP 3/5, and CP 3/6 (PROFINET) are
specified in Annex C.
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this document corresponds to
the numbering of IEC 61918 main clauses and subclauses.
The annex clauses and subclauses of this document supplement, modify, or replace the
respective clauses and subclauses in IEC 61918.
Where there is no corresponding subclause of IEC 61918 in the normative annexes in this
document, the subclause of IEC 61918 applies without modification.
The annex heading letter represents the installation profile assigned in Clause 4. The annex
(sub)clause numbering following the annex letter shall represent the corresponding
(sub)clause numbering of IEC 61918.
EXAMPLE "Subclause B.4.4" in IEC 61784-5-3 means that CP 3/2 specifies the subclause 4.4 of IEC 61918.
All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each
normative installation profile annex.
If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause
applies.
If in a (sub)clause it is written "Not applicable.", then the corresponding
IEC 61918 (sub)clause does not apply.
If in a (sub)clause it is written "Addition:", then the corresponding IEC 61918 (sub)clause
applies with the additions written in the profile.
If in a (sub)clause it is written "Replacement:", then the text provided in the profile replaces
the text of the corresponding IEC 61918 (sub)clause.
NOTE A replacement can also comprise additions.
If in a (sub)clause it is written "Modification:", then the corresponding IEC 61918 (sub)clause
applies with the modifications written in the profile.
If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written
"(Sub)clause x has addition" (or "replacement", or "modification") or "(Sub)clause is not
applicable.", then (sub)clause x becomes valid as declared and all the other corresponding
IEC 61918 (sub)clauses apply.
– 12 – IEC 61784-5-3:2018  IEC 2018
6 Conformance to installation profiles
Each installation profile within this document includes part of IEC 61918:2018. It may also
include defined additional specifications.
A statement of compliance to an installation profile of this document shall be stated as either
Compliance to IEC 61784-5-3:201x for CP 3/m  or
Compliance to IEC 61784-5-3 (Ed.4.0) for CP 3/m
where the name within the angle brackets < > is optional and the angle brackets are not to be
included. The m within CP 3/m shall be replaced by the profile number 1 to 6.
NOTE The name may be the name of the profile, for example PROFIBUS or PROFINET.
If the name is a trade name then the permission of the trade name holder shall be required.
Product standards shall not include any conformity assessment aspects (including quality
management provisions), neither normative nor informative, other than provisions for product
testing (evaluation and examination).

___________
In accordance with ISO/IEC Directives.
The date should not be used when the edition number is used.

Annex A
(normative)
CP 3/1 (PROFIBUS) specific installation profile
A.1 Installation profile scope
Addition:
This annex specifies the installation profile for Communication Profile CP 3/1 (PROFIBUS with
a physical layer according to RS 485, RS 485-IS, and fibre). The CP 3/1 is specified in
IEC 61784-1.
A.2 Normative references
Addition:
IEC 60079-14, Explosive atmospheres – Part 14: Electrical installations design, selection and
erection
IEC 60079-11:2011, Explosive atmospheres – Part 11: Equipment protection by intrinsic
safety "i"
IEC 60512-6-3, Connectors for electronic equipment – Tests and measurements – Part 6-3:
Dynamic stress tests – Test 6c: Shock
IEC 60512-6-4, Connectors for electronic equipment – Tests and measurements – Part 6-4:
Dynamic stress tests – Test 6d: Vibration (sinusoidal)
IEC
...