Tutorial example of application of the standard NF EN 62061

The designers of automated systems must increasingly integrate complex components such as Programmable Logic Controllers dedicated to safety or fieldbus dedicated to safety for processing safety functions.
Among the available standards for machine design, NF EN 62061 is suitable for designing a machine control circuit incorporating functional safety of safety-related electrical, electronic and programmable electronic control systems. It describes the general principles of design of Safety Related Electrical Control Systems (SRECS).
This document has been developed to meet industrial wondering about how to apply the new concepts introduced by this standard.
The first part of the document entitled: Guide to design a SRECS, sheds light on some parts of the standard and also offers tools to facilitate the understanding and use, but also the choices that designers will have to make.
The second part consists of a practical case of a safety function implemented by INRS based on the standard and the tools of the guide. Significant phases of design are described, highlighting details and comments deemed necessary to assimilate the principles advocated by the standard.
This document is not intended to replace the standard NF EN 62061 as it doesn’t include its whole content. It mainly aims to facilitate the reading and application of this standard and its use by designers based on concrete examples.