September 2002
Intermediate to advanced
528 pages
11h 7m
English
The following patterns are presented in this chapter.
Protected Single Channel Pattern: Safety without heavyweight redundancy
Homogeneous Redundancy: Protection against random faults
Triple Modular Redundancy: Protection against random fault with continuation of functionality
Heterogeneous Redundancy Pattern: Protection against random and systematic faults without a fail-safe state
Monitor-Actuator Pattern: Protection against random and systematic faults with a fail-safe state
Sanity Check Pattern: Lightweight protection against random and systematic faults with a fail-safe state
Watchdog Pattern: Very lightweight protections and timebase fault and detection of deadlock with a fail-safe state
Safety Executive ...
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