User Documentation

Failure category SIL 2
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9. Failure category SIL 2
Failure rates according to IEC 61508
Total failure rate for dangerous detected failures (λ
DD
)
130.3 FIT
Total failure rate for dangerous undetected failures (λ
DU
)
46.58 FIT
Total failure rate for all safe failures (λ
Safe
)
289.7 FIT
FIT = 10
-9
h
-1
(Failure in time)