Skript vom Sommersemester 2012 - Institut für Automatisierungs ...

§ 15 Sicherheitsnachweis (SN)
ZSA
Architecture of System/Sub-system/Equipment (zu TS2)
Techniques / Measures SIL 1 SIL 2 SIL 3 SIL 4
1. Separation of safety-related systems
R R HR HR
from non safety-related systems
2. single electronic structure with self tests and
R R - -
supervision
3. Dual electronic structure R R - -
4. Dual electronic structure based on composite failsafety
R R HR HR
with fail-safe comparison
5. single electronic structure based on inherent failsafety
R R HR HR
6. single electronic structure based on reactive failsafety
R R HR HR
7. Diverse electronic structure with fail-safe
R R HR HR
comparison
8. Justification of the architecture by a quantitative
reliability analysis of the hardware
HR HR HR HR
© 2012 IAS, Universität Stuttgart
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