EN ISO 13849-1:2023

Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2023)

This document specifies a methodology and provides related requirements, recommendations and guidance for the design and integration of safety‐related parts of control systems (SRP/CS) that perform safety functions, including the design of software.
This document applies to SRP/CS for high demand and continuous modes of operation including their subsystems, regardless of the type of technology and energy (e.g. electrical, hydraulic, pneumatic, and mechanical). This document does not apply to low demand mode of operation.
NOTE 1        See 3.1.44 and the IEC 61508 series for low demand mode of operation.
This document does not specify the safety functions or required performance levels (PLr) that are to be used in particular applications.
NOTE 2        This document specifies a methodology for SRP/CS design without considering if certain machinery (e.g. mobile machinery) has specific requirements. These specific requirements can be considered in a Type‑C standard.
This document does not give specific requirements for the design of products/components that are parts of SRP/CS. Specific requirements for the design of some components of SRP/CS are covered by applicable ISO and IEC standards.
This document does not provide specific measures for security aspects (e.g. physical, IT-security, cyber security).
NOTE 3        Security issues can have an effect on safety functions. See ISO/TR 22100-4 and IEC/TR 63074 for further information.

Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1: Allgemeine Gestaltungsleitsätze (ISO 13849-1:2023)

Dieses Dokument legt ein Verfahren fest und enthält zugehörige Anforderungen, Empfehlungen und einen Leitfaden für die Gestaltung und Integration sicherheitsbezogener Teile von Steuerungen (SRP/CS), die Sicherheitsfunktionen ausführen, einschließlich des Entwurfs von Software.
Dieses Dokument ist anwendbar für SRP/CS in der Betriebsart mit hoher Anforderungsrate und der Betriebsart mit kontinuierlicher Anforderung einschließlich ihrer Teilsysteme, ungeachtet der Art der Technologie und der Energie (z. B. elektrisch, hydraulisch, pneumatisch und mechanisch). Dieses Dokument ist nicht anwendbar für Betriebsarten mit niedriger Anforderungsrate.
ANMERKUNG 1   Siehe 3.1.44 und die Normenreihe IEC 61508 für die Betriebsart mit niedriger Anforderungsrate.
Dieses Dokument legt nicht fest, welche Sicherheitsfunktionen oder welche erforderlichen Performance Level (PLr) für spezielle Fälle zu verwenden sind.
ANMERKUNG 2   Dieses Dokument legt ein Verfahren für die Gestaltung von SRP/CS fest, ohne dabei zu berücksichtigen, ob für bestimmte Maschinen (z. B. ortsveränderliche Maschinen) spezifische Anforderungen gelten. Diese spezifischen Anforderungen können in einer Typ-C-Norm festgelegt sein.
Dieses Dokument stellt keine speziellen Anforderungen an den Entwurf von Produkten/Bauteilen, die Teile von SRP/CS sind. Spezifische Anforderungen an den Entwurf einiger Bauteile eines SRP/CS werden in den zutreffenden ISO- und IEC-Normen behandelt.
Dieses Dokument enthält keine spezifischen Maßnahmen für weitere Sicherheitsaspekte (z. B. physische Sicherheit, IT-Sicherheit, Cybersicherheit).
ANMERKUNG 3   Securityaspekte können einen Einfluss auf Sicherheitsfunktionen haben. Siehe ISO/TR 22100-4 und IEC/TR 63074 für weitere Informationen.

Sécurité des machines - Parties des systèmes de commande relatives à la sécurité - Partie 1: Principes généraux de conception (ISO 13849-1:2023)

Le présent document spécifie une méthodologie et fournit des exigences, des recommandations et des conseils portant sur la conception et l'intégration des parties des systèmes de commande relatives à la sécurité (SRP/CS) qui réalisent des fonctions de sécurité, incluant la conception de logiciels.
Le présent document s'applique aux SRP/CS pour les modes de fonctionnement à forte sollicitation et continu, incluant leurs sous-systèmes, indépendamment du type de technologie et d'énergie utilisé (par exemple, électrique, hydraulique, pneumatique et mécanique). Le présent document ne s'applique pas au mode de fonctionnement à faible sollicitation.
NOTE 1        Voir 3.1.44 et la série IEC 61508 pour le mode de fonctionnement à faible sollicitation.
Le présent document ne spécifie pas les fonctions de sécurité et les niveaux de performance requis (PLr) qui doivent être utilisés dans un cas particulier.
NOTE 2        Le présent document spécifie une méthodologie pour la conception des SRP/CS sans tenir compte d'exigences spécifiques pour certaines machines (par exemple, machines mobiles). Ces exigences spécifiques peuvent être prises en compte dans une norme de type‑C.
Le présent document ne donne pas d'exigences spécifiques pour la conception de produits/composants intégrés dans les SRP/CS. Les exigences spécifiques pour la conception de certains composants de SRP/CS sont couvertes par les normes ISO et IEC applicables.
Le présent document ne fournit pas de mesures spécifiques pour les aspects de sécurité (par exemple, physique, sécurité informatique (IT-security), cybersécurité).
NOTE 3        Les problèmes de sécurité peuvent avoir un effet sur les fonctions de sécurité. Voir l'ISO/TR 22100-4 et l'IEC/TR 63074 pour d'autres informations.

Varnost strojev - Z varnostjo povezani deli krmilnih sistemov - 1. del: Splošna načela za načrtovanje (ISO 13849-1:2023)

Ta dokument določa metodologijo in zagotavlja povezane zahteve, priporočila in smernice za načrtovanje in integracijo z varnostjo povezanih delov krmilnih sistemov (SRP/CS), ki izvajajo varnostne funkcije, vključno z načrtovanjem programske opreme.
Ta dokument se uporablja za z varnostjo povezane dele krmilnih sistemov, ki delujejo v načinu delovanja z visokimi zahtevami in v neprekinjenem načinu, vključno z njihovimi podsistemi, ne glede na vrsto uporabljene tehnologije in energije (npr. električne, hidravlične, pnevmatske in mehanske). Ta dokument se ne uporablja za način delovanja z nizkimi zahtevami.
OPOMBA 1: Za način delovanja z nizkimi zahtevami glej točko 3.1.44 in skupino standardov IEC 61508.
Ta dokument ne določa varnostnih funkcij ali zahtevanih ravni učinkovitosti (PLr), ki jih je treba uporabiti v posameznem primeru.
OPOMBA 2: Ta dokument določa metodologijo za načrtovanje z varnostjo povezanih delov krmilnih sistemov brez upoštevanja, ali imajo določeni stroji (npr. mobilni stroji) posebne zahteve. Te posebne zahteve je mogoče upoštevati v standardu tipa C.
Ta dokument ne podaja posebnih zahtev za načrtovanje izdelkov/komponent, ki so del z varnostjo povezanih delov krmilnih sistemov. Posebne zahteve za načrtovanje nekaterih komponent z varnostjo povezanih delov krmilnih sistemov so zajete v standardih ISO in IEC.
Ta dokument ne določa posebnih ukrepov za varnostne vidike (npr. fizična varnost, IT-varnost, računalniška varnost).
OPOMBA 3: Varnostne težave lahko vplivajo na varnostne funkcije. Za dodatne informacije glej ISO/TR 22100-4 in IEC/TR 63074.

General Information

• Status: Published
• Publication Date: 16-May-2023
• ICS: 13.110 - Safety of machinery
• Technical Committee: CEN/TC 114 - Safety of machinery
• Drafting Committee: CEN/TC 114 - Safety of machinery
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 17-May-2023
• Completion Date: 17-May-2023
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN ISO 13849-1:2023 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2023)

Relations

• Replaces: EN ISO 13849-1:2015 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015)
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2023
Varnost strojev - Z varnostjo povezani deli krmilnih sistemov - 1. del: Splošna
načela za načrtovanje (ISO 13849-1:2023)
Safety of machinery - Safety-related parts of control systems - Part 1: General principles
for design (ISO 13849-1:2023)
Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1:
Allgemeine Gestaltungsleitsätze (ISO 13849-1:2023)
Sécurité des machines - Parties des systèmes de commande relatives à la sécurité -
Partie 1 : Principes généraux de conception (ISO 13849-1:2023)
Ta slovenski standard je istoveten z: EN ISO 13849-1:2023
ICS:
13.110 Varnost strojev Safety of machinery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 13849-1
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2023
EUROPÄISCHE NORM
ICS 13.110 Supersedes EN ISO 13849-1:2015
English Version
Safety of machinery - Safety-related parts of control
systems - Part 1: General principles for design (ISO 13849-
1:2023)
Sécurité des machines - Parties des systèmes de Sicherheit von Maschinen - Sicherheitsbezogene Teile
commande relatives à la sécurité - Partie 1: Principes von Steuerungen - Teil 1: Allgemeine
généraux de conception (ISO 13849-1:2023) Gestaltungsleitsätze (ISO 13849-1:2023)
This European Standard was approved by CEN on 3 March 2023.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13849-1:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered . 4
European foreword
This document (EN ISO 13849-1:2023) has been prepared by Technical Committee ISO/TC 199 "Safety
of machinery" in collaboration with Technical Committee CEN/TC 114 “Safety of machinery” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2023, and conflicting national standards
shall be withdrawn at the latest by May 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 13849-1:2015.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 13849-1:2023 has been approved by CEN as EN ISO 13849-1:2023 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/396
Mandate to CEN and CENELEC for Standardisation in the field of machinery" to provide one voluntary
means of conforming to essential requirements of Directive 2006/42/EC of the European Parliament
and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2006/42/EC
The relevant essential Clause(s)/subclause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.1.6 9
1.2.1 6, 7, 10
1.2.3 5.2.2.4 This subclause only deals with
the restart function
1.2.4.1 5.2.2.2 This subclause only deals with
those safety-related stop function
achieving stop category 0 or 1.
1.2.4.2 5.2.2.2 This subclause only deals with
those safety-related stop function
achieving stop category 2.
1.2.4.3 5.2.1 This subclause only deals with
the safety requirements
specification (SRS) of an
emergency stop function
1.2.5 5.2.2.9
1.2.6 5.2.1.3 item i), 5.2.2.8
1.6.1 11
1.6.2 11
1.6.4 11
1.7.4.2 (e, g, i, r, s) 13 This subclause only deals with
the instruction for safety
functions.
Table ZA.2 — Applicable Standards to confer presumption of conformity as described in this
Annex ZA
Reference in International Title Corresponding European
Clause 2 Standard Edition Standard Edition
ISO 12100:2010 ISO 12100:2010 Safety of machinery — General EN ISO 12100:2010
principles for design — Risk
assessment and risk reduction
ISO 13849-2:2012 ISO 13849-2:2012 Safety of machinery — Safety- EN ISO 13849-2:2012
related parts of control systems —
Part 2: Validation
ISO 13855:2010 ISO 13855:2010 Safety of machinery — Positioning EN ISO 13855:2010
of safeguards with respect to the
approach of the human body
ISO 20607:2019 ISO 20607:2019 Safety of machinery — Instruction EN ISO 20607:2019
handbook — General drafting
principles
IEC 61508-3:2010 IEC 61508-3:2010 Functional safety of IEC 61508-3:2010
electrical/electronic/programmabl
e electronic safety-related systems
— Part 3: Software requirements
IEC 62046:2018 IEC 62046:2018 Safety of machinery — Application EN IEC 62046:2018
of protective equipment to detect
the presence of persons
IEC 62061:2021 IEC 62061:2021 Safety of machinery — Functional EN IEC 62061:2021
safety of safety-related control
systems
IEC/IEEE 82079- IEC/IEEE 82079- Preparation of information for use EN IEC/IEEE 82079-1:2019
1:2019 1:2019 (instructions for use) of products —
Part 1: Principles and general
requirements
The documents listed in the Column 1 of Table ZA.2, in whole or in part, are normatively referenced in this
document, i.e. are indispensable for its application. The achievement of the presumption of conformity is
subject to the application of the edition of Standards as listed in Column 4 or, if no European Standard
Edition exists, the International Standard Edition given in Column 2 of Table ZA.2.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European Standard
is maintained in the list published in the Official Journal of the European Union. Users of this standard
should consult frequently the latest list published in the Official Journal of the European Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of this
standard.
INTERNATIONAL ISO
STANDARD 13849-1
Fourth edition
2023-04
Safety of machinery — Safety-related
parts of control systems —
Part 1:
General principles for design
Sécurité des machines — Parties des systèmes de commande relatives
à la sécurité —
Partie 1: Principes généraux de conception
Reference number
ISO 13849-1:2023(E)
ISO 13849-1:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 13849-1:2023(E)
Contents Page
Foreword . vi
Introduction .viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Symbols and abbreviated terms . 10
4 Overview .12
4.1 Risk assessment and risk reduction process at the machine .12
4.2 Contribution to the risk reduction . 14
4.3 Design process of an SRP/CS . 14
4.4 Methodology . 15
4.5 Required information . 16
4.6 Safety function realization by using subsystems . 17
5 Specification of safety functions .17
5.1 Identification and general description of the safety function . 17
5.2 Safety requirements specification . 18
5.2.1 General requirements . 18
5.2.2 Requirements for specific safety functions . 21
5.2.3 Minimizing motivation to defeat safety functions . 24
5.2.4 Remote access .
...