EN 16590-2:2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Concept - Unit of observation
6 Risk analysis and
  method description
7 System design
Annex A (normative) - Designated
        architectures for SRP/CS
Annex B (informative) - Simplified method
        to estimate channel MTTF[dC]
Annex C (informative) - Determination of
        diagnostic coverage (DC)
Annex D (informative) - Estimates for
        common-cause failure (CCF)
Annex E (informative) - Systematic failure
Annex F (informative) - Characteristics of
        safety functions
Annex G (informative) - Example of a risk analysis
Annex ZA (informative) - Relationship between this
        European Standard and the Essential
        Requirements of EU Machinery
        Directive 2006/42/EC
Bibliography

This part of EN 16590 specifies the concept phase of the development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry, and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to municipal equipment (e.g. street sweeping machines). It specifies the characteristics and categories required of SRP/CS for carrying out their safety functions.This part of EN 16590 is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It does not specify which safety functions, categories or performance levels are to be used for particular machines.Machine specific standards (type-C standards) can identify performance levels and/or categories or they should be determined by the manufacturer of the machine based on risk assessment.It is not applicable to non-E/E/PES systems (e.g. hydraulic, mechanic or pneumatic).