EN 61784-5-4:2012

SLOVENSKI STANDARD
01-junij-2012
Industrijska komunikacijska omrežja - Profili - 5-4. del: Inštalacija procesnih vodil -
Inštalacijski profili za CPF 4 (IEC 61784-5-4:2010)
Industrial communication networks - Profiles - Part 5-4: Installation of fieldbuses -
Installation profiles for CPF 4 (IEC 61784-5-4:2010)
Industrielle Kommunikationsnetze - Profile - Teil 5-4: Feldbusinstallation -
Installationsprofile für die Kommunikationsprofilfamilie 4 (IEC 61784-5-4:2010)
Réseaux de communication industriels - Profils - Partie 5-4: Installation des bus de
terrain - Profils d'installation pour CPF 4 (CEI 61784-5-4:2010)
Ta slovenski standard je istoveten z: EN 61784-5-4:2012
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61784-5-4
NORME EUROPÉENNE
April 2012
EUROPÄISCHE NORM
ICS 25.040.40; 35.100.40
English version
Industrial communication networks -
Profiles -
Part 5-4: Installation of fieldbuses -
Installation profiles for CPF 4
(IEC 61784-5-4:2010)
Réseaux de communication industriels -  Industrielle Kommunikationsnetze -
Profils - Profile -
Partie 5-4: Installation des bus de terrain - Teil 5-4: Feldbusinstallation -
Profils d'installation pour CPF 4 Installationsprofile für die
(CEI 61784-5-4:2010) Kommunikationsprofilfamilie 4
(IEC 61784-5-4:2010)
This European Standard was approved by CENELEC on 2011-10-19. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61784-5-4:2012 E
Foreword
The text of document 65C/602/FDIS, future edition 1 of IEC 61784-5-4, prepared by SC 65C, "Industrial
networks", of IEC/TC 65, "Industrial-process measurement, control and automation" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61784-5-4:2012.

The following dates are fixed:
(dop) 2012-10-20
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2014-10-19

standards conflicting with the
document have to be withdrawn
This standard is to be used in conjunction with IEC 61918, second edition (2010-07), together with the
European Common Modification published with EN 61918:2008.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61784-5-4:2010 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 61784-5-4:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61918 2010 Industrial communication networks - - -
Installation of communication networks in
industrial premises
IEC 61784-5-4 ®
Edition 1.0 2010-07
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 5 4: Installation of fieldbuses – Installation profiles for CPF 4

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
V
ICS 25.040.40; 35.100.40 ISBN 978-2-88912-055-0
– 2 – 61784-5-4 © IEC:2010(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references .6
3 Terms, definitions and abbreviated terms .6
4 CPF 4: Overview of installation profiles .6
5 Installation profile conventions .6
6 Conformance to installation profiles.7
Annex A (normative) CP 4/1 (P-NET, RS 485) specific installation profile .9
Annex B (normative) CP 4/3 (P-NET on IP) specific installation profile.21
Bibliography.32

Figure 1 – Standards relationships.5
Figure A.1 – Resistor termination circuit .14

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet .11
Table A.2 – Information relevant to copper cable: fixed cable .12
Table A.3 – Connectors for copper cabling CPs not based on Ethernet.13
Table A.4 – Parameters for balanced cables.16
Table B.1 – Network characteristics for balanced cabling based on Ethernet .23
Table B.2 – Information relevant to copper cables: fixed cables .24
Table B.3 – Connectors for balanced cabling CPs based on Ethernet .24
Table B.4 – Parameters for balanced cables.27

61784-5-4 © IEC:2010(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-4: Installation of fieldbuses –
Installation profiles for CPF 4

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 61784-5-4 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 61918:2010.

– 4 – 61784-5-4 © IEC:2010(E)
The text of this standard is based on the following documents:
FDIS Report on voting
65C/602/FDIS 65C/616/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.
A list of all parts of the IEC 61784-5 series, published 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 stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• 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.
61784-5-4 © IEC:2010(E) – 5 –
INTRODUCTION
This International Standard is one of a series produced to facilitate the use of communication
networks in industrial control systems.
IEC 61918:2010 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 61784-5-4 for CPF 4), allows readers to work with standards of a convenient size.

PLANNING
DESIGN AND
INSTALLATION
Offices
GENERIC
OFFICE PREMISES ISO/IEC 11801
Annex
CABLING
Home
HOMES ISO/IEC 15018
Annex
ISO/IEC Data centre
DATA CENTRES ISO/IEC 24764
14763-2 Annex
BETWEEN
Industrial
AUTOMATION ISO/IEC 24702
Annex
ISLANDS
BETWEEN
AUTOMATION
Installation
INDUSTRIAL PREMISES IEC 61158
IEC 61918
ISLANDS
Profiles
series
IEC 61784-5 series
and (Common
(Selection +
WITHIN
requirements)
IEC 61784-1, -2
Add/Repl/Mod)
AUTOMATION
ISLANDS
Com m on structure
APPLICATION-SPECIFIC
CABLING
Figure 1 – Standards relationships

– 6 – 61784-5-4 © IEC:2010(E)
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-4: Installation of fieldbuses –
Installation profiles for CPF 4

1 Scope
This part of IEC 61784 specifies the installation profiles for CPF 4 (P-NET) .
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2010.
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 61918:2010, Industrial communication networks – Installation of communication networks
in industrial premises
The normative references of IEC 61918:2010, Clause 2, apply.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms of
IEC 61918:2010, Clause 3, apply.
4 CPF 4: Overview of installation profiles
CPF 4 consists of three communication profiles as specified in IEC 61784-1 and IEC 61784-2.
The installation requirements for CP 4/1 (P-NET with physical layer according to RS 485) are
specified in Annex A.
The installation requirements for CP 4/3 (P-NET on IP) are specified in Annex B.
NOTE There is no installation profile specified for CP 4/2 (P-NET with physical layer according to RS 232).
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this standard corresponds to
the numbering of IEC 61918 main clauses and subclauses.
___________
1 P-NET is the trade name of International P-NET User Organisation ApS (IPUO). This information is given for

the convenience of users of this International Standard and does not constitute an endorsement by IEC of the
trademark holder or any of its products. Compliance to this profile does not require use of the trade name P-
NET. Use of the trade name P-NET requires permission of the trade name holder.

61784-5-4 © IEC:2010(E) – 7 –
The annex clauses and subclauses of this standard 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
standard, 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 “Annex B.4.4” in IEC 61784-5-4 means that CP 4/3 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 “(Sub)clause 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 61918:2010. It may also
include defined additional specifications.
as either
A statement of compliance to an installation profile of this standard shall be stated
Compliance to IEC 61784-5-4:2010 for CP 4/m or
Compliance to IEC 61784-5-4 (Ed.1.0) for CP 4/m
where the name within the angle brackets < > is optional and the angle brackets are not to be
included. The m within CP 4/m shall be replaced by the profile number 1 or 3.
NOTE The name may be the name of the profile, for example ‘P-NET with physical layer according to RS 485’ or
‘P-NET on IP’.
___________
In accordance with ISO/IEC Directives
The date should not be used when the edition number is used.

– 8 – 61784-5-4 © IEC:2010(E)
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).

61784-5-4 © IEC:2010(E) – 9 –
Annex A
(normative)
CP 4/1 (P-NET, RS 485) specific installation profile

A.1 Installation profile scope
Addition:
This standard specifies the installation profile for Communication Profile CP 4/1 (P-NET with
physical layer according to RS 485). The CP 4/1 is specified in IEC 61784-1.
A.2 Normative references
A.3 Installation profile terms, definitions, and abbreviated terms
A.3.1 Terms and definitions
A.3.2 Abbreviated terms
A.3.3 Conventions for installation profiles
Not applicable.
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 4/1
networks.
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 Electric safety
A.4.2.1.3 Functional safety
Not applicable.
– 10 – 61784-5-4 © IEC:2010(E)
A.4.2.1.4 Intrinsic safety
Not applicable.
A.4.2.1.5 Safety of optical fibre communication systems
Not applicable
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.4 Specific requirements for generic cabling in accordance with ISO/IEC 24702
A.4.3 Network capabilities
A.4.3.1 Network topology
A.4.3.1.1 Common description
A.4.3.1.2 Basic physical topologies for passive networks
Modification:
The star topology shall not be used for CP 4/1 passive networks. A ring topology shall be
used for CP 4/1 passive networks.
A.4.3.1.3 Basic physical topologies for active networks
Modification:
The star topology shall not be used for CP 4/1 active networks.
A.4.3.1.4 Combination of basic topologies
A.4.3.1.5 Specific requirements for CPs
Addition:
With bus topology; both ends of the network segment shall be terminated.
A.4.3.1.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
A.4.3.2 Network characteristics
A.4.3.2.1 General
A.4.3.2.2 Network characteristics for balanced cabling not based on Ethernet
Replacement: Table A.1 provides values based on the template given in IEC 61918:2010,
Table 1.
61784-5-4 © IEC:2010(E) – 11 –
Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet
Characteristics CP 4/1 (P-NET)
Network topology
RS 485 bus RS 485 ring
Length / transmission speed Segment length
m
76,8 kbits/s 600 1 200
Maximum capacity Max. No.
Devices / segment 125 125
Number of devices / network  a a
unlimited unlimited
a
Practically unlimited since P-NET is a multi-master bus, which can accept up to 32 initiators per link,
where each of the initiators can have several link-interfaces (segments), where each link again can have up
to 125 devices and so on. The addressing space within the multi-link structure can hold up to 11 levels of
links for each initiator.
A.4.3.2.3 Network characteristics for balanced cabling based on Ethernet
Not applicable.
A.4.3.2.4 Network characteristics for optical fibre cabling
Not applicable.
A.4.3.2.5 Specific network characteristics
A.4.3.2.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
A.4.4 Selection and use of cabling components
A.4.4.1 Cable selection
A.4.4.1.1 Common description
A.4.4.1.2 Copper cables
A.4.4.1.2.1 Balanced cables for Ethernet based CPs
Not applicable.
A.4.4.1.2.2 Copper cables for non Ethernet based CPs
Addition:
Unshielded cables shall not be used with CP 4/1 networks.
Repl
...