IEC 61784-5-3:2007

IEC 61784-5-3
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3

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IEC 61784-5-3
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 5-3: Installation of fieldbuses – Installation profiles for CPF 3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XE
ICS 35.100.05 25.040.40 ISBN 2-8318-9403-4

– 2 – 61784-5-3 © 2007:IEC(E)
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 .10

6 Conformance to installation profiles.11
Annex A (normative) CP 3/1 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.3.1 Terms and definitions .12
A.3.2 Abbreviated terms .12
A.3.3 Conventions for installation profiles .13
A.4 Installation planning .13
A.4.1 Introduction .13
A.4.2 Planning requirements.13
A.4.3 Network capabilities .15
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.31
A.5.4 Terminator installation .35
A.5.5 Device installation .35
A.5.6 Coding and labeling.35
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 Introduction .36

A.6.2 Installation verification.37
A.6.3 Installation acceptance test .38
A.7 Installation administration.44
A.8 Installation maintenance and installation troubleshooting .44
A.8.1 General .44
A.8.2 Maintenance.44
A.8.3 Troubleshooting.44
A.8.4 Specific requirements for maintenance and troubleshooting .44
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

61784-5-3 © 2007:IEC(E) – 3 –
B.3.3 Conventions for installation profiles .47

B.4 Installation planning .48

B.4.1 Introduction .48

B.4.2 Planning requirements.49

B.4.3 Network capabilities .57

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 .78

B.5.2 Cable installation.78
B.5.3 Connector installation.79
B.5.4 Terminator installation .80
B.5.5 Device installation .80
B.5.6 Coding and labelling .80
B.5.7 Earthing and bonding of equipment and device and shielded cabling.80
B.5.8 As-implemented cabling documentation.80
B.6 Installation verification and installation acceptance test.80
B.6.1 Introduction .80
B.6.2 Installation verification.80
B.6.3 Installation acceptance test .81
B.7 Installation administration.82
B.8 Installation maintenance and installation troubleshooting .82
Annex C (normative) CP 3/3, CP 3/4, CP 3/5, CP 3/6 (PROFINET) specific installation
profile.83
C.1 Installation profile scope.83
C.2 Normative references .83
C.3 Installation profile terms, definitions, and abbreviated terms.83
C.3.1 Terms and definitions .83
C.3.2 Abbreviated terms .83
C.3.3 Conventions for installation profiles .83
C.4 Installation planning .83
C.4.1 Introduction .83
C.4.2 Planing requirements.84
C.4.3 Network capabilities .84
C.4.4 Selection and use of cabling components .88

C.4.5 Cabling planning documentation. 101
C.4.6 Verification of cabling planning specification.101
C.5 Installation implementation .101
C.5.1 General requirements .101
C.5.2 Cable installation.101
C.5.3 Connector Installation.104
C.5.4 Terminator installation .105
C.5.5 Device installation .105
C.5.6 Coding and labeling.105
C.5.7 Earthing and bonding of equipment and device and shielded cabling.105
C.5.8 As-implemented cabling documentation. 106
C.6 Installation verification and installation acceptance test. 106
C.6.1 Introduction .106
C.6.2 Installation verification.106

– 4 – 61784-5-3 © 2007:IEC(E)
C.6.3 Installation acceptance test .108

C.7 Installation administration.109

C.8 Installation maintenance and installation troubleshooting . 109

Bibliography.110

Table A.1 – Excerpt of MICE definition.15

Table A.2 – Basic network characteristics for balanced cabling not based on Ethernet

(ISO/IEC 8802-3) .16

Table A.3 – Network characteristics for optical fibre cabling.17

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 – Parameters for balanced cables.29
Table A.9 – Parameters for silica optical fibre cables .29
Table A.10 – Parameters for POF optical fibre cables .29
Table A.11 – Parameters for hard cladded silica optical fibre cables .30
Table A.12 – Use of 9 pin Sub-D connector pins (RS 485) .32
Table A.13 – Use of 9 pin Sub-D connector pins (RS 485-IS).33
Table A.14 – Use of M12 connecotor pins (RS 485) .34
Table A.15 – Use of M12 connector pins (RS 485-IS) .35
Table A.16 – Maximum fibre channel attenuation for CP 3/1 (PROFIBUS) .44
Table B.1 – Valid parameter range of the FISCO model for use as EEx ib IIC / IIB.54
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 – Minimum 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 .78
Table B.16 – Contact assignments for the external connector for harsh industrial
environments .79
Table C.1 – General transmission media selection information .85
Table C.2 – Network characteristics for balanced cabling based on Ethernet
(ISO/IEC 8802-3) .86
Table C.3 – Network characteristics for optical fibre cabling .87
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 .88

61784-5-3 © 2007:IEC(E) – 5 –
Table C.5 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6

type B fixed cables .89

Table C.6 – Information relevant to copper cable: CP 3/3, CP 3/4, CP 3/5 and CP 3/6

type C fixed cables .89

Table C.7 – Information relevant to optical fibre cables.90

Table C.8 – Requirements for plastic and polymer cladded optical fibre cables.91

Table C.9 – Requirements for glass multimode optical fibre cables .92

Table C.10 – Requirements for glass singlemode optical fibre cables .93

Table C.11 – Information relevant to hybrid cables .94

Table C.12 – Connectors for balanced cabling CPs based on Ethernet .95
Table C.13 – Optical fibre connecting hardware .95
Table C.14 – typical fibre channels common for industrial applications. .98
Table C.15 – Parameters for balanced cables.102
Table C.16 – Parameters for silica optical fibre cables.102
Table C.17 – Parameters for POF optical fibre cables.102
Table C.18 – Parameters for hard cladded silica optical fibre cables. 103
Table C.19 – colour coding for CP 3/3, CP 3/4, CP 3/5 and CP 3/6 connectors . 104
Table C.20 – Maximum fibre channel attenuation for CP 3/3, CP 3/4, CP 3/5 and
CP 3/6 (PROFINET).108

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 .32
Figure A.3 – 5-pin M-12 female socket.33
Figure A.4 – 5 pins M-12 male plug for CP 3/1.34
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.40
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) .42
Figure A.12 – Action and resolution tree for measurement 2 (RS 485 and RS 485-IS) .43
Figure A.13 – Action and resolution tree for measurement 3 (RS 485 and RS 485-IS) .43
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 .56
Figure B.5 – Current modulation (Manchester II code) .56
Figure B.6 – CP 3/2 topology .57
Figure B.7 – Bus topology.58
Figure B.8 – Combination of the tree topology and the bus topology .58
Figure B.9 – Fieldbus extension.59
Figure B.10 – Recommended combination of shielding and earthing.72

– 6 – 61784-5-3 © 2007:IEC(E)
Figure B.11 – Ideal combination of shielding and earthing .73

Figure B.12 – Capacitive grounding .74

Figure B.13 – Galvanic isolated field device.76

Figure B.14 – Pin assignment of the male and female connectors IEC 60947-5-2 (A-

coding) .80

Figure C.1 – End-to-end link without interconnections.96

Figure C.2 – Assembled end-to-end link .96

Figure C.3 – Connectionless optical fibre link .97

Figure C.4 – Assembled optical fibre link .97

Figure C.5 – Shielded connectors for CP 3/3, CP 3/4, CP 3/5 and CP 3/6 fieldbus
networks .104
Figure C.6 – Pin-assignment for a straight cable.104

61784-5-3 © 2007:IEC(E) – 7 –
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
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
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6) All users should ensure that they have the latest edition of this publication.
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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) 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 standard is to be used in conjunction with IEC 61918:2007.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/471/FDIS 65C/482/RVD
Full information on the voting for the approval of this standard 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.

– 8 – 61784-5-3 © 2007:IEC(E)
A list of all parts of the 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 publication will remain unchanged until

the maintenance result 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

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or

• amended.
The contents of the corrigendum of February 2009 have been included in this copy.

61784-5-3 © 2007:IEC(E) – 9 –
INTRODUCTION
This International Standard is one of a series produced to facilitate the use of communication

networks in industrial control systems.

IEC 61918:2007 (Ed. 1.0) 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 standard, see IEC/TR 61158-1.
Each CP installation profile is specified in a separate annex of this standard. 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 standard 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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– 10 – 61784-5-3 © 2007:IEC(E)

INDUSTRIAL COMMUNICATION NETWORKS – PROFILES

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

1 Scope
This part of IEC 61784 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 61918:2007.
2 Normative references
The following referenced documents are indispensable for the application 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 61918:2007, Industrial communication networks – Installation of communication networks
in industrial premises
The normative references of IEC 61918:2007, Clause 2, apply. For profile specific normative
A.2, B.2, and C.2.
references, see
3 Terms, definitions and abbreviated terms
For the purpose of this document, the terms, definitions and abbreviated terms of
IEC 61918:2007, Clause 3, apply. For profile specific terms, definitions and abbreviated terms
see A.3, B.3, and C.3.
4 CPF 3: Overview of installation profiles
CPF 3 consists of six CPs 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 standard corresponds to
the numbering of IEC 61918:2007 main clauses and subclauses.

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 International Standard 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.

61784-5-3 © 2007:IEC(E) – 11 –

The annex clauses and subclauses of this standard supplement, modify, or replace the

respective clauses and subclauses in IEC 61918:2007.

Where there is no corresponding subclause of IEC 61918:2007 in the normative annexes in

this standard, the subclause of IEC 61918:2007 applies without modification.

The annex heading letter represents the installation profile assigned in Clause 4. The annex

heading number shall represent the corresponding numbering of IEC 61918:2007.

EXAMPLE  “Annex B.4.4” in IEC 61784-5-3 means that CP 3/2 specifies the Subclause 4.4 of IEC 61918:2007.

All main clauses of IEC 61918:2007 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 is “Not applicable”, then (sub)clause x becomes valid
as declared and all the other corresponding IEC 61918 (sub)clauses apply.
6 Conformance to installation profiles
Each installation profile within this standard includes part of IEC 61918:2007. It may also
include defined additional specifications.
A statement of compliance to an installation profile of this standard shall be stated as either
Compliance to IEC 61784-5-3:2007 for CP 3/n or
Compliance to IEC 61784-5-3 (Ed.1.0) for CP 3/n
where the name within the angle brackets < > is optional and the angle brackets are not to be
included. The n within CP 3/n 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.

– 12 – 61784-5-3 © 2007:IEC(E)

Annex A
(normative)
CP 3/1 specific installation profile

A.1 Installation profile scope

Addition:
This standard 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 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.3.1.1
hazard
potential source of harm
NOTE  The term includes danger to persons arising within a short time scale (for example fire and explosion) and
also those that have a long term effect on a person’s health (for example release of a toxic substance).
[IEC 61508-4:1998, 3.1.2]
A.3.1.2
intrinsic safety “i”
type of protection based on the restriction of electrical energy within apparatus and of
interconnecting wiring exposed to the potentially explosive atmosphere to a level below that
which can cause ignition by either sparking or heating effects
[IEC 60079-11:2006, 3.1.1]
NOTE  No single device or wiring is intrinsically safe by itself (except for battery-operated self-contained
apparatus such as portable pagers, transceivers, gas detectors, etc., which are specifically designed as
intrinsically safe self-contained devices) but is intrinsically safe only when employed as part of a properly designed
intrinsically safe system.
A.3.2 Abbreviated terms
Addition:
61784-5-3 © 2007:IEC(E) – 13 –

AC Alternating current
MAU Medium attachment unit
PELV Protective Extra Low Voltage

PNO PROFIBUS Nutzer Organisation (a non profit user organisation)

RS 485 MAU according to ANSI TIA/EIA-485-A

RS 485-IS MAU according to ANSI TIA/EIA-485-A and applicable to IS

SELV Safety Extra Low Voltage
TN-S Coded type of system earthing according to IEC 60364-1, 312.2

A.3.3 Conventions for installation profiles
No profile specific conventions needed.
A.4 Installation planning
A.4.1 Introduction
A.4.1.1 Objective
A.4.1.2 Cabling in industrial premises
Addition:
Generic cabling in accordance with ISO/IEC 24702 is not suitable for the cabling of CP 3/1
networks.
CP 3/1 networks only can be connected to the generic cabling via converter/adapter as
specified in IEC 61918:2007, 4.1.2.
A.4.1.3 The planning process
A.4.1.4 Specific requirements for CPs
A.4.1.5 Specific requirements for generic cabling in accordance with ISO/IEC 24702
A.4.2 Planning requirements
A.4.2.1 Safety
A.4.2.1.1 General
A.4.2.1.2 Electrical Safety
A.4.2.1.3 Functional safety requirements
Addition:
NOTE  Each and every device on CP 3/1 networks (standard and safety) should provide a test certificate issued by
PROFIBUS International (more information available by ) based on IEC 61158 or at least
provide a corresponding manufacturers declaration stating compliance with CP 3/1 specification.
Each and every safety device shall comply with IEC 61508 series and other related standards
if applicable.
The 24V power supplies in use shall be one-error proof and provide SELV/PELV only.
National regulations shall be considered.
EXAMPLE  In the United States of America the power supplies provide a current limitation of 8A according
UL508C.
– 14 – 61784-5-3 © 2007:IEC(E)

No spurs or branch lines are permitted in a CP 3/1 network for safety applications.

Effective cable shielding especially after bending the cable or after changing connectors shall

be ensured. In case of doubt, a more flexible and robust cable type should be used.

Sub-D connectors shall have multi contact features at the connector housing in order to

provide an optimal contact between the cable shield, the cable connector and its counterpart

at the CP 3/1 device. Care shall be taken to achieve a good (low impedance) contact between

the cable shield and connector housing.

For connections of CP 3/1 devices with M12 interface only M12 connectors that guarantee a

good (low impedance) contact between cable shield and connector housing are permitted.
Cable shield shall not be connected to the connector pin 5.
A cabinet of protection class IP54 (dust, shower water) shall be used for safety devices such
as drives with integrated safety that are offering a lower protection class such as IP20.
Cabinets with a lower protection class may only be used if safety devices explicitly permit
other environments according to the manufacturer's information (for example heat problems).
A.4.2.1.4 Intrinsic safety
A.4.2.1.5 Safety of optical fibre communication systems (OFCS)
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.3.1 Description methodology
Modification:
The MICE description methodology shown in IEC 61918:2007 is both a rather comprehensive
and complex approach but nevertheless does not describe all possible environments. Where
an environment exists that cannot be mapped in to the MICE tables, the user shall determine
suitability of the components for the targeted environment through agreements with the
component providers or additional mitigation techniques.
To make fieldbus installation work more easily for CP 3/1 fieldbus networks the MICE table is
condensed into the two basic environments inside and outside data cabinets.
NOTE  CP 3/1 products should at least meet the MICE parameters of Table A.1.

61784-5-3 © 2007:IEC(E) – 15 –

Table A.1 – Excerpt of MICE definition

Inside enclosure Outside enclosure

Mechanical
a IEC 60512-4, test 6c IEC 60512-4, test 6c
Shock/bump
20 g / 11 ms 20 g / 11 ms
Peak acceleration
3 per axis in both directions 3 per axis in both directions
Vibration IEC 60512-4, test 6d IEC 60512-4, test 6d
10 Hz - 500 Hz 0,35 mm or 5g 0,35 mm or 5 g

Ingress
IP protection class IP20 IP65 / IP67

Particulate ingress (dia 12,5 mm 50 µm

min)
Immersion None intermittent liquid jet
≤12,5 l/min
≥ 6,5 mm jet
> 2,5 m distance
and immersion (≤1 m for ≤30 min)
Climatic and chemical
Ambient temperature 0 °C
...