Catalogs > Safety Products Catalog > Principles, Standards and Implementation > System Design According to ISO/EN 13849-1:2006
System Design According to ISO/EN 13849-1:2006
| System Design According to ISO/EN 13849-1:2006 |  |
Safety System Architectures (Structures) | |
Mission Time | |
Mean-Time-to-Dangerous Failure (MTTFd) | |
Diagnostic Coverage (DC) | |
Common-Cause Failure (CCF) | |
| Systematic Failure | |
Performance Level (PL) | |
Subsystem Design and Combinations | |
Validation | |
Machine Commissioning | |
Fault Exclusion | |
Mission time represents the maximum period of time for which a subsystem (or system) can be used. After this time, it must be replaced. Mission time must be declared by the manufacturer of the components. Mission time will usually be the same as the proof-test interval as used in IEC/EN62061. The safety system designer must then consider the mission time of the components to determine the mission time of each safety function.