SAFETY CONTROLLER USING HARDWARE MEMORY PROTECTION

SAFETY CONTROLLER USING HARDWARE MEMORY PROTECTION

Hardware memory management units are used in an integrated safety/non-safety industrial computer to allow shared memory architecture processors to implement safety and non-safety reduced risk of memory corruption. Testing of the memory management unit of the non-safety processor may provide a period...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: STAY, Nicholas L, IZZO, Joseph P
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Beschreibung
Zusammenfassung:Hardware memory management units are used in an integrated safety/non-safety industrial computer to allow shared memory architecture processors to implement safety and non-safety reduced risk of memory corruption. Testing of the memory management unit of the non-safety processor may provide a periodic writing to protected memory to invoke a protection fault providing a report to the safety processor.