EN IEC 61784-3:2021

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 61784-3:2017
SIST EN 61784-3:2017/A1:2018
Industrijska komunikacijska omrežja - Profili - 3. del: Funkciijska varnost
procesnih vodil - Splošna pravila in definicije profilov (IEC 61784-3:2021)
Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses -
General rules and profile definitions (IEC 61784-3:2021)
Industrielle Kommunikationsnetze - Profile - Teil 3: Funktional sichere Übertragung bei
Feldbussen - Allgemeine Regeln und Festlegungen für Profile (IEC 61784-3:2021)
Réseaux de communication industriels - Profils - Partie 3: Bus de terrain de sécurité
fonctionnelle - Règles générales et définitions de profils (IEC 61784-3:2021)
Ta slovenski standard je istoveten z: EN IEC 61784-3:2021
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 Večslojne uporabniške Multilayer applications
rešitve
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61784-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2021
ICS 25.040.40; 35.100.05 Supersedes EN 61784-3:2016 and all of its amendments
and corrigenda (if any)
English Version
Industrial communication networks - Profiles - Part 3: Functional
safety fieldbuses - General rules and profile definitions
(IEC 61784-3:2021)
Réseaux de communication industriels - Profils - Partie 3: Industrielle Kommunikationsnetze - Profile - Teil 3:
Bus de terrain de sécurité fonctionnelle - Règles générales Funktional sichere Übertragung bei Feldbussen -
et définitions de profils Allgemeine Regeln und Festlegungen für Profile
(IEC 61784-3:2021) (IEC 61784-3:2021)
This European Standard was approved by CENELEC on 2021-03-23. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61784-3:2021 E

European foreword
The text of document 65C/1067/FDIS, future edition 4 of IEC 61784-3, 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 IEC 61784-3:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-12-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-03-23
document have to be withdrawn
This document supersedes EN 61784-3:2016 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61784-3:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61000-1-2 NOTE Harmonized as EN 61000-1-2
IEC 61131-6 NOTE Harmonized as EN 61131-6
IEC 61158-2:2014 NOTE Harmonized as EN 61158-2:2014 (not modified)
IEC 61158-3-1 NOTE Harmonized as EN 61158-3-1
IEC 61158-3-2 NOTE Harmonized as EN 61158-3-2
IEC 61158-3-3 NOTE Harmonized as EN 61158-3-3
IEC 61158-3-8 NOTE Harmonized as EN 61158-3-8
IEC 61158-3-12 NOTE Harmonized as EN IEC 61158-3-12
IEC 61158-3-13 NOTE Harmonized as EN 61158-3-13
IEC 61158-3-14 NOTE Harmonized as EN 61158-3-14
IEC 61158-3-18 NOTE Harmonized as EN 61158-3-18
IEC 61158-3-19 NOTE Harmonized as EN IEC 61158-3-19
IEC 61158-3-21 NOTE Harmonized as EN IEC 61158-3-21
IEC 61158-3-22 NOTE Harmonized as EN 61158-3-22
IEC 61158-4-1 NOTE Harmonized as EN 61158-4-1
IEC 61158-4-2 NOTE Harmonized as EN IEC 61158-4-2
IEC 61158-4-3 NOTE Harmonized as EN IEC 61158-4-3
IEC 61158-4-8 NOTE Harmonized as EN 61158-4-8
IEC 61158-4-12 NOTE Harmonized as EN IEC 61158-4-12
IEC 61158-4-13 NOTE Harmonized as EN 61158-4-13
IEC 61158-4-14 NOTE Harmonized as EN 61158-4-14
IEC 61158-4-18 NOTE Harmonized as EN 61158-4-18
IEC 61158-4-19 NOTE Harmonized as EN IEC 61158-4-19
IEC 61158-4-21 NOTE Harmonized as EN IEC 61158-4-21
IEC 61158-4-22 NOTE Harmonized as EN 61158-4-22
IEC 61158-5-2 NOTE Harmonized as EN IEC 61158-5-2
IEC 61158-5-3 NOTE Harmonized as EN 61158-5-3
IEC 61158-5-5 NOTE Harmonized as EN 61158-5-5
IEC 61158-5-8 NOTE Harmonized as EN 61158-5-8
IEC 61158-5-9 NOTE Harmonized as EN 61158-5-9
IEC 61158-5-10 NOTE Harmonized as EN IEC 61158-5-10
IEC 61158-5-12 NOTE Harmonized as EN IEC 61158-5-12
IEC 61158-5-13 NOTE Harmonized as EN 61158-5-13
IEC 61158-5-14 NOTE Harmonized as EN 61158-5-14
IEC 61158-5-18 NOTE Harmonized as EN 61158-5-18
IEC 61158-5-19 NOTE Harmonized as EN IEC 61158-5-19
IEC 61158-5-21 NOTE Harmonized as EN IEC 61158-5-21
IEC 61158-5-22 NOTE Harmonized as EN 61158-5-22
IEC 61158-5-23 NOTE Harmonized as EN IEC 61158-5-23
IEC 61158-6-2 NOTE Harmonized as EN IEC 61158-6-2
IEC 61158-6-3 NOTE Harmonized as EN IEC 61158-6-3
IEC 61158-6-5 NOTE Harmonized as EN 61158-6-5
IEC 61158-6-8 NOTE Harmonized as EN 61158-6-8
IEC 61158-6-9 NOTE Harmonized as EN 61158-6-9
IEC 61158-6-10 NOTE Harmonized as EN IEC 61158-6-10
IEC 61158-6-12 NOTE Harmonized as EN IEC 61158-6-12
IEC 61158-6-13 NOTE Harmonized as EN 61158-6-13
IEC 61158-6-14 NOTE Harmonized as EN 61158-6-14
IEC 61158-6-18 NOTE Harmonized as EN 61158-6-18
IEC 61158-6-19 NOTE Harmonized as EN IEC 61158-6-19
IEC 61158-6-21 NOTE Harmonized as EN IEC 61158-6-21
IEC 61158-6-22 NOTE Harmonized as EN 61158-6-22
IEC 61158-6-23 NOTE Harmonized as EN IEC 61158-6-23
IEC 61496 (series) NOTE Harmonized as EN IEC 61496 (series)
IEC 61496-1 NOTE Harmonized as EN IEC 61496-1
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified)
IEC 61508-5:2010 NOTE Harmonized as EN 61508-5:2010 (not modified)
IEC 61511 (series) NOTE Harmonized as EN 61511 (series)
IEC 61800-5-2 NOTE Harmonized as EN 61800-5-2
IEC 62061:2005 NOTE Harmonized as EN 62061:2005 (not modified)
IEC 62061:2005/A1:2012 NOTE Harmonized as EN 62061:2005/A1:2013 (not modified)
IEC 62061:2005/A2:2015 NOTE Harmonized as EN 62061:2005/A2:2015 (not modified)
ISO 10218-1 NOTE Harmonized as EN ISO 10218-1
ISO 13849 (series) NOTE Harmonized as EN ISO 13849 (series)
ISO 13849-1:2015 NOTE Harmonized as EN ISO 13849-1:2015 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61000-6-7 - Electromagnetic compatibility (EMC) - Part EN 61000-6-7 -
6-7: Generic standards - Immunity
requirements for equipment intended to
perform functions in a safety-related system
(functional safety) in industrial locations
IEC 61010-2-201 - Safety requirements for electrical equipment EN IEC 61010-2-201 -
for measurement, control, and laboratory
use - Part 2-201: Particular requirements for
control equipment
IEC 61158 series Industrial communication networks - EN IEC 61158 series
Fieldbus specifications
IEC 61326-3-1 - Electrical equipment for measurement, EN 61326-3-1 -
control and laboratory use - EMC
requirements – Part 3-1: Immunity
requirements for safety-related systems and
for equipment intended to perform safety-
related functions (functional safety) –
General industrial applications
IEC 61326-3-2 - Electrical equipment for measurement, EN IEC 61326-3-2 -
control and laboratory use - EMC
requirements - Part 3-2: Immunity
requirements for safety-related systems and
for equipment intended to perform safety-
related functions (functional safety) -
Industrial applications with specified
electromagnetic environment
IEC 61508 series Functional safety of electrical EN 61508 series
/electronic/programmable electronic safety-
related systems
Publication Year Title EN/HD Year
IEC 61508-1 2010 Functional safety of electrical EN 61508-1 2010
/electronic/programmable electronic safety-
related systems - Part 1: General
requirements
IEC 61508-2 - Functional safety of electrical/ EN 61508-2 -
electronic/programmable electronic safety-
related systems - Part 2: Requirements for
electrical/electronic/programmable
electronic safety-related systems
IEC 61784-1 - Industrial communication networks - Profiles EN IEC 61784-1 -
Part 1: Fieldbus profiles
IEC 61784-2 - Industrial communication networks - Profiles EN IEC 61784-2 -
- Part 2: Additional fieldbus profiles for real-
time networks based on ISO/IEC/IEEE
8802-3
IEC 61784-3 series Industrial communication networks - Profiles - -
- Part 3: Functional safety fieldbuses
IEC 61784-3-1 - Industrial communication networks - Profiles EN 61784-3-1 -
- Part 3-1: Functional safety fieldbuses -
Additional specifications for CPF 1
IEC 61784-3-2 - Industrial communication networks - Profiles EN 61784-3-2 -
- Part 3-2: Functional safety fieldbuses -
Additional specifications for CPF 2
IEC 61784-3-3 - Industrial communication networks - Profiles EN 61784-3-3 -
- Part 3-3: Functional safety fieldbuses -
Additional specifications for CPF 3
IEC 61784-3-6 - Industrial communication networks - Profiles EN 61784-3-6 -
- Part 3-6: Functional safety fieldbuses -
Additional specifications for CPF 6
IEC 61784-3-8 - Industrial communication networks - Profiles EN 61784-3-8 -
- Part 3-8: Functional safety fieldbuses -
Additional specifications for CPF 8
IEC 61784-3-12 - Industrial communication networks - Profiles EN 61784-3-12 -
- Part 3-12: Functional safety fieldbuses -
Additional specifications for CPF 12
IEC 61784-3-13 - Industrial communication networks - Profiles EN 61784-3-13 -
- Part 3-13: Functional safety fieldbuses -
Additional specifications for CPF 13
IEC 61784-3-14 - Industrial communication networks - Profiles EN 61784-3-14 -
- Part 3-14: Functional safety fieldbuses -
Additional specifications for CPF 14
Publication Year Title EN/HD Year
IEC 61784-3-17 - Industrial communication networks - Profiles EN 61784-3-17 -
- Part 3-17: Functional safety fieldbuses -
Additional specifications for CPF 17
IEC 61784-3-18 - Industrial communication networks - Profiles EN 61784-3-18 -
- Part 3-18: Functional safety fieldbuses -
Additional specifications for CPF 18
IEC 61784-5 series Industrial communication networks - Profiles EN 61784-5 series
- Part 5: Installation of fieldbuses
IEC 61918 2018 Industrial communication networks - EN IEC 61918 2018
Installation of communication networks in
industrial premises
- - EN IEC 61918:2018 2019
/AC:2019-03
IEC 62443 series Security for industrial process measurement - -
and control - Network and system security

IEC 61784-3 ®
Edition 4.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

Part 3: Functional safety fieldbuses – General rules and profile definitions

Réseaux de communication industriels – Profils –

Partie 3: Bus de terrain de sécurité fonctionnelle – Règles générales et

définitions de profils
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-9268-6

– 2 – IEC 61784-3:2021 © IEC 2021
CONTENTS
FOREWORD . 7
0 Introduction .
...