User Documentation

Failure category SIL 2
1485620000/01/11.2017 13
9. Failure category SIL 2
Failure rates according to IEC 61508
Total failure rate for dangerous detected failures (λ
DD
)
135.6 FIT
Total failure rate for dangerous undetected failures (λ
DU
)
36.18 FIT
Total failure rate for all safe failures (λ
Safe
)
275.5 FIT
FIT = 10
-9
h
-1
(Failure in time)