Catalogs > Safety Products Catalog > Principles, Standards and Implementation > System Design According to IEC/EN 62061
System Design According to IEC/EN 62061
| Introduction | Subsystem Design: IEC/EN 62061 | Affect of the Proof Test Interval | Affect of Common Cause Failure Analysis | Common Cause Failure (CCF) | Diagnostic Coverage (DC) |
| Hardware Fault Tolerance | Management of Functional Safety | Proof Test Interval | Safe Failure Fraction (SFF) | Systematic Failure |
Hardware fault tolerance represents the number of faults that can be sustained by a subsystem before it causes a dangerous failure. For example, a hardware fault tolerance of one means that two faults could cause a loss of the safety-related control function but one fault would not.
