Abbreviations - Pepperl+Fuchs SIL KFD0-SD2-*. Series Safety Manual

SAFETY MANUAL SIL K*D0-SD*-(EX)*.****(.SP), HIC2871

Abbreviations

5 Abbreviations
FIT
FMEDA
λ
s
λ
dd
λ
du
λ
no effect
λ
not part
λ
total (safety function)
HFT
MTBF
MTTR
PFD
PFH
PTC
SFF
SIF
SIL
SIS
T
proof
16
Failure In Time
Failure Mode, Effects and Diagnostics Analysis
Probability of safe failure
Probability of dangerous detected failure
Probability of dangerous undetected failure
Probability of failures of components in the safety path that have
no effect on the safety function
Probability of failure of components that are not in the safety path
Safety function
Hardware Fault Tolerance
Mean Time Between Failures
Mean Time To Repair
Average Probability of Failure on Demand
avg
Probability of dangerous Failure per Hour
Proof Test Coverage
Safe Failure Fraction
Safety Instrumented Function
Safety Integrity Level
Safety Instrumented System
Proof Test Interval