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The Safety Critical Systems Handbook, 4th Edition by Kenneth L. Simpson, David J. Smith

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Chapter 3

Meeting IEC 61508 Part 2

Abstract

This chapter covers Part 2 of IEC 61508 addressing the safety system hardware and overall system design. The authors have attempted, in this chapter, to simplify the highly complex set of requirements to a credible representation of distinct design requirements for safety, which includes requirements for design and development and those involving complete specification.

Keywords

ASIC; Demonstration template; FMEA; Proven in use; Redundant units; Safe failure fraction (SFF); Safety requirement specification (SRS)
 
IEC 61508 Part 2 covers the safety system hardware and overall system design, whereas software design is covered by Part 3 (see next chapter). This chapter summarizes the main requirements. However, ...

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