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© Engineering Safety Consultants Limited
Page 5
Example: Functional Test & Proof Test
Sensor A
Sensor B
Controller
1oo2
Final Elements
© Engineering Safety Consultants Limited
Page 6
Example: Functional Test & Proof Test
Sensor A
Sensor B
Controller
1oo2
Final Elements
X
Dangerous Fault 1
A functional test would not detect Dangerous Fault 1 of
Sensor A architecture.