EN IEC 61139-2:2022
(Main)Industrial networks - Single-drop digital communication interface - Part 2: Functional safety extensions
Industrial networks - Single-drop digital communication interface - Part 2: Functional safety extensions
IEC 61139-2:2022 specifies the extensions to SDCI in IEC 61131-9 for functional safety. This comprises: • a standardized OSSDe interface for redundant switching signals based on IEC 61131-2, • minor modifications/extensions to state machines of SDCI to support the safety operations, • a lean functional safety communication protocol on top of the standard SDCI communication which is a black channel according to IEC 61784-3:2021, • protocol management functions for configuration, parameterization, and commissioning, • IODD extensions for functional safety, • a Device tool interface to support Dedicated Tools according to functional safety standards. This document does not cover: • communication interfaces or systems including multi-point or multi-drop linkages, • communication interfaces or systems including multi-channel or encrypted linkages, • wireless communication interfaces or systems, • integration of SDCI-FS into upper-level systems such as fieldbuses/FSCPs.
Industrielle Netzwerke - Digitale Single-Drop-Kommunikationsschnittstelle - Teil 2: Erweiterungen für die funktionale Sicherheit
Réseaux industriels - Interface de communication numérique point à point - Partie 2: Extensions de sécurité fonctionnelle
L'IEC 61139-2:2022 spécifie les extensions de la SDCI de l'IEC 61131-9 pour la sécurité fonctionnelle. Elle comprend: • une interface OSSDe normalisée pour les signaux de commutation redondants, fondée sur l'IEC 61131-2; • des modifications/extensions mineures des diagrammes d'états de la SDCI afin de prendre en charge les opérations de sécurité; • un protocole de communication de sécurité fonctionnelle affiné en plus de la communication SDCI normalisée, qui constitue un canal noir selon l'IEC 61784-3:2021; • des fonctions de gestion de protocole pour la configuration, le paramétrage et la mise en service; • des extensions de l'IODD pour la sécurité fonctionnelle; • une interface d'outil d'Appareil pour prendre en charge les outils dédiés, conformément aux normes de sécurité fonctionnelle. Le présent document ne couvre pas: • les interfaces ou systèmes de communication qui incluent des liaisons multipoints; • les interfaces ou systèmes de communication qui incluent des liaisons chiffrées ou multicanaux; • les interfaces ou systèmes de communication sans fil; • l'intégration de la SDCI-FS aux systèmes de niveau supérieur, tels que les bus de terrain/FSCP.
Industrijska omrežja - Enožični digitalni komunikacijski vmesnik - 2. del: Funkcijsko varni podaljški (IEC 61139-2:2022)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2022
Industrijska omrežja - Enožični digitalni komunikacijski vmesnik - 2. del:
Funkcijsko varni podaljški (IEC 61139-2:2022)
Industrial networks - Single-drop digital communication interface - Part 2: Functional
safety extensions (IEC 61139-2:2022)
Industrielle Netzwerke - Digitale Single-Drop-Kommunikationsschnittstelle - Teil 2:
Erweiterungen für die funktionale Sicherheit (IEC 61139-2:2022)
Réseaux industriels - Interface de communication numérique point à point - Partie 2:
Extensions de sécurité fonctionnelle (IEC 61139-2:2022)
Ta slovenski standard je istoveten z: EN IEC 61139-2:2022
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61139-2
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2022
ICS 25.040
English Version
Industrial networks - Single-drop digital communication interface
- Part 2: Functional safety extensions
(IEC 61139-2:2022)
Réseaux industriels - Interface de communication Industrielle Netzwerke - Digitale Single-Drop-
numérique point à point - Partie 2: Extensions de sécurité Kommunikationsschnittstelle - Teil 2: Erweiterungen für die
fonctionnelle funktionale Sicherheit
(IEC 61139-2:2022) (IEC 61139-2:2022)
This European Standard was approved by CENELEC on 2022-09-23. 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,
Türkiye 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61139-2:2022 E
European foreword
The text of document 65C/1168/FDIS, future edition 1 of IEC 61139-2, 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 61139-2:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-06-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-09-23
document have to be withdrawn
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61139-2:2022 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 61784-3 (series) NOTE Harmonized as EN IEC 61784-3 (series)
IEC 60947-5-2 NOTE Harmonized as EN IEC 60947-5-2
IEC 62769 (series) NOTE Harmonized as EN IEC 62769 (series)
IEC 60947-5-6 NOTE Harmonized as EN 60947-5-6
IEC 62453 (series) NOTE Harmonized as EN 62453 (series)
IEC 60947-5-3 NOTE Harmonized as EN 60947-5-3
IEC 61076-2-113 NOTE Harmonized as EN 61076-2-113
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (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 60204-1 - Safety of machinery - Electrical equipment EN 60204-1 -
of machines - Part 1: General requirements
IEC 61010-2-201 - Safety requirements for electrical EN IEC 61010-2-201 -
equipment for measurement, control, and
laboratory use - Part 2-201: Particular
requirements for control equipment
IEC 61131-2 - Industrial-process measurement and - -
control - Programmable controllers - Part 2:
Equipment requirements and tests
IEC 61131-9 2022 Programmable controllers - Part 9: Single- EN IEC 61131-9 2022
drop digital communication interface for
small sensors and actuators (SDCI)
IEC 61496-1 - Safety of machinery - Electro-sensitive EN IEC 61496-1 -
protective equipment - Part 1: General
requirements and tests
IEC 61508-3 - Functional safety of EN 61508-3 -
electrical/electronic/programmable
electronic safety-related systems - Part 3:
Software requirements
IEC 61784-3 2021 Industrial communication networks - EN IEC 61784-3 2021
Profiles - Part 3: Functional safety
fieldbuses - General rules and profile
definitions
IEC 62061 - Safety of machinery - Functional safety of EN IEC 62061 -
safety-related control systems
IEC 62443 series Security for industrial automation and EN IEC 62443 series
control systems
ISO 639-2 - Codes for the representation of names of - -
languages - Part-2: Alpha-3 code
ISO 639-3 - Codes for the representation of names of - -
languages - Part 3: Alpha-3 code for
comprehensive coverage of languages
ISO 13849-1 - Safety of machinery - Safety-related parts EN ISO 13849-1 -
of control systems - Part 1: General
principles for design
IEC 61139-2 ®
Edition 1.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks – Single-drop digital communication interface –
Part 2: Functional safety extensions
Réseaux industriels – Interface de communication numérique point à point –
Partie 2: Extensions de sécurité fonctionnelle
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040 ISBN 978-2-8322-3946-9
– 2 – IEC 61139-2:2022 © IEC 2022
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 17
2 Normative references . 17
3 Terms, definitions, symbols, abbreviated terms, and conventions . 18
3.1 Terms and definitions . 18
3.2 Common terms and definitions . 18
3.3 Terms and definitions related to SDCI-FS . 21
3.4 Symbols and abbreviated terms . 23
3.5 Conventions . 24
3.5.1 Behavioral descriptions . 24
3.5.2 Memory and transmission octet order . 25
4 Overview of SDCI-FS . 25
4.1 Purpose of the technology and feature levels . 25
4.1.1 Base SDCI-FS technology . 25
4.1.2 From "analog" and "switching" to communication . 26
4.1.3 Minimized paradigm shift from FS-DI to FS-Master . 27
4.1.4 Following the SDCI paradigm (SIO vs. OSSDe) . 28
4.1.5 Port class B . 30
4.1.6 "USB-Master" with safety parameterization . 31
4.1.7 Interoperability matrix of safety devices . 31
4.2 Positioning within the automation hierarchy . 32
4.3 Wiring, connectors, and power supply . 33
4.4 Relationship to SDCI . 33
4.5 Communication features and interfaces . 34
4.6 Parameterization . 34
4.7 Role of FS-Master and FS-Gateway . 35
4.8 Mapping to upper-level systems . 35
4.9 Structure of the document . 35
5 Extensions to the Physical Layer (PL) . 35
5.1 Overview. 35
5.2 Extensions to PL services . 36
5.2.1 PL_SetMode . 36
5.2.2 PL_Ready . 36
5.3 Transmitter/receiver . 37
5.3.1 Assumptions for the expansion to OSSDe . 37
5.3.2 OSSDe specifics . 37
5.3.3 Start-up of an FS-Device (Ready pulse) . 40
5.3.4 Electric characteristics of a receiver in FS-Device and FS-Master . 41
5.4 Electric and dynamic characteristics of an FS-Device . 41
5.5 Electric and dynamic characteristics of an FS-Master port (OSSDe) . 44
5.6 FS-Master port FS-DI interface . 45
5.7 Wake-up coordination . 45
5.8 Fast start-up . 46
5.9 Power supply . 46
5.10 Medium . 47
IEC 61139-2:2022 © IEC 2022 – 3 –
5.10.1 Constraints . 47
5.10.2 Connectors . 47
5.10.3 Cable characteristics . 47
6 Extensions to SIO . 47
7 Extensions to the data link layer (DL) . 47
7.1 Overview. 47
7.2 State machine of the FS-Master DL-mode handler
...
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