If the system is not operating as intended, it can be placed in a safe-state. The Watchdog timer is used to monitor and identify if the system is operating correctly. The Watchdog timer provides a method for supplying such a mechanism. ![]() In the event of the unexpected failure of some component of the system, the fail-safe mechanism takes over and places the system into a known safe-state. ![]() Critical systems typically require redundancy or fail-safe mechanisms of some kind.
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