Make safety choices based on FMEDA - EN61508
Автор: Path Of Least Resistance
Загружено: 2026-02-08
Просмотров: 62
Описание:
Functional Safety decisions are made based on numerical FMEDA outputs SFF and PFH. Today we look at how to shape those critical numbers.
4 different ways to shape numbers are discussed after short introduction to how the numerical analysis works.
Shaping:
Diagnose
Remove
Add
Redefine
Shaping helps you define architecture and the needed diagnostics. It can significantly affect your Time To Market. This video discusses high demand devices which are not effected as much by proof testing procedures employed in low demand safety applications such as fire alarms. This video addresses the EN61508 (Industrial) standard of functional safety rather than EN61511 (Process industry) or EN26262 (Automotive).
See previous video on my channel for the tools and basics of FMEDA to compliment these quantitative measures.
00:00 - Intro
00:43 - SFF
02:04 - PFH
04:09 - Labelling
09:52 - Diagnostic choice - DC
10:31 - Bending numbers
15:48 - Architecture
19:57 - What is enough safety?
24:34 - Summary
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