20/30360575 DC - BS EN ISO 13849-1. Safety of machinery. Safety-related parts of control systems. Part 1. General principles for design

20/30360575 DC

BS EN ISO 13849-1. Safety of machinery. Safety-related parts of control systems. Part 1. General principles for design

Status : Current, Draft for public comment   Published : June 2020



This part of ISO 13849 specifies a methodology and provides related guidance for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software. This document specifies the characteristics needed to determine the performance level required of safety functions. This document applies to SRP/CS for high demand and continuous mode including their subsystems, regardless of the type of technology and energy (e.g. electrical, hydraulic, pneumatic, mechanical), for many kinds of machinery. The standard does not apply to low demand mode.

This document does not specify the safety functions or required performance levels that are to be used in particular applications.

This document does not give specific requirements for the design of products that are parts of SRP/CS.

This document does not provide specific measures for security (e.g. physical, IT-security, cyber security) aspects.


This document specifies a methodology for SRP/CS design without considering if certain machinery (e.g. mobile machinery) requires specific requirements. These specific requirements can be considered in a Type‑C standard.


See IEC 61508 for low demand mode.


See also ISO/TR 22100-4 for IT-security aspects and IEC/TR 63074 for security aspects.

Standard Number20/30360575 DC
TitleBS EN ISO 13849-1. Safety of machinery. Safety-related parts of control systems. Part 1. General principles for design
StatusCurrent, Draft for public comment
Publication Date08 June 2020
Normative References(Required to achieve compliance to this standard)IEC 60204-1:2016, IEC 61508-3:2010, ISO 12100:2010, IEC 62046:2018, ISO 13849-2:2013, ISO 62061:2015
Informative References(Provided for Information)IEC 61506, IEC 60947 (all parts), SN 29500 (all parts), IEC 61496-1, ISO 11428, IEC 61300 (all parts), ISO 13856-1, EN 1005-3, ISO 4413, EN 50205, ISO 11429, ISO 4414, IEC 61496-2, IEC 61131-3, IEC 61810 (all parts), IEC 62061, ISO 9355-1, IEC 60812, ISO 10218-2, ISO 13856-2, IEC 60447, ISO 10218-1, IEC 60529, EN 614-1, ISO 9001, ISO/TR 23849, ISO 7731, IEC 61800-3, IEC 61310 (all parts), ISO 19973 (all parts), ISO 13851, ISO 11161, ISO 14119, ISO 9355-2, ISO 14118, IEC 61326-3-1:2017, IEC 61508-5:1998, IEC 61508-1:2010, IEC 61508-2:2010, IEC 61508-3:2010, IEC 61000-1-2:2016, IEC 60204-1:2016, IEC 61800-5-2:2016, IEC 61000-6-7:2014, IEC 61508-7:2010, IEC 61508-6:2000, IEC 61078:2016, IEC 61496-3, IEC 61000-6-2, ISO 9355-3, ISO 13850, ISO/TR 14121-2:2012, IEC 61709:2017, ISO 13855:2010, IEC 61508-4:2010, ISO/TR 22100-2:2013, ISO/IEC/IEEE 26512:2011, ISO/TR 22100-4:2018, IEC 60050-191:1990
International RelationshipsISO/DIS 13849-1.2
Draft Expiry Date01 August 2020
DescriptorsDesign, Reliability, Safety devices, Occupational safety, Computer software, Instructions for use, Control systems, Equipment safety, Risk assessment, Grades (quality), Classification systems, Electronic equipment and components, Control equipment, Computerized control, Defects, Automatic control systems, Safety measures
Title in FrenchSécurité des machines — Parties des systèmes de commande relatives à la sécurité — Partie 1: Principes généraux de conception Partie 1: Principes généraux de conception
File Size2.338 MB
NotesWarning: this draft is not current beyond its expiry date for comments.

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