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3. New calculation requirements
3.1 SIL reminder
The SIL (safety integrity level) specifies the integrity requirements for each safety function performed by E/E/EP systems. Four SIL levels ranging from 1 to 4 characterize these systems:
SIL 4 refers to the "highest" safety level;
SIL 1 refers to the "lowest" security level.
The concept of SIL applies to a RIS as a whole, and not to any individual component or sub-assembly. Nonetheless, some equipment suppliers are now using it as a selling point.
Standards IEC 61508 and 61511 define different...
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New calculation requirements
Conclusion
Bibliography
Standards and norms
- Sécurité fonctionnelle des systèmes électriques/électroniques/électroniques programmables relatifs à la sécurité. - IEC 61508 :1998 - 1998
- Sécurité fonctionnelle des systèmes électriques/électroniques/électroniques programmables relatifs à la sécurité. - IEC 61508 :2010 - 2010
- Functional safety of safety-related electrical/electronic/programmable electronic systems – Part 2: Requirements for safety-related...
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Association des exploitants d'équipements de mesure, de régulation et d'automatisme (EXERA).
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