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Standard Standard of the month August 2016 2016-06

DIN EN ISO 13849-1:2016-06

Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015); German version EN ISO 13849-1:2015

German title
Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1: Allgemeine Gestaltungsleitsätze (ISO 13849-1:2015); Deutsche Fassung EN ISO 13849-1:2015
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About this standard

This part of ISO 13849 provides safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software. For these parts of SRP/CS, it specifies characteristics that include the performance level required for carrying out safety functions. It applies to SRP/CS for high demand and continuous mode, regardless of the type of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.), for all kinds of machinery.

It does not specify the safety functions or performance levels that are to be used in a particular case. This part of ISO 13849 provides specific requirements for SRP/CS using programmable electronic system(s). It does not give specific requirements for the design of products which are parts of SRP/CS (such as relays, solenoid valves, position switches, or PLCs). Nevertheless, the principles given, such as categories or performance levels, can be used.

This document is of relevance, in particular, for the following stakeholder groups representing the market players with regard to machinery safety:

  • machine manufacturers (small, medium and large enterprises)
  • health and safety bodies (regulators, accident prevention organisations, market surveillance etc.)

What has changed?

This edition replaces the previous edition from December 2008. Multiple revisions have been made in addition to overall editorial revision, including the incorporation of Technical Corrigendum ISO 13849-1:2006/Cor 1:2009 and the deletion of Table 1 from the Introduction. Further, the normative references have been updated and supplemented: the definitions of the terms “hazardous situation” and “high demand or continuous mode” have  been amended, and a new term “proven in use” and its definition have been added. A new Subclause 4.5.5 “Description of the output part of the SRP/CS by category” has been added and some modifications have been made to the annexes, in particular to Annex I.

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