GE GFK-0787B Manuel D’Utilisation

Genius Modular Redundancy has been developed for use in systems that have static or nearly
static I/O under normal operating conditions. The system may have:

H Normally-on inputs with normally-energized outputs, as in emergency shutdown systems.
H Normally-off inputs with normally-deenergized outputs, as in fire and gas detection

systems.

Genius Modular Redundancy provides:

H high degree of self-test and monitoring with diagnostics
H fault tolerance.
H support for centralized or fully distributed systems.
H Scalable voting: 2-out-of-3, 2-out-of-2, 1-out-of-2, or simplex.

The example that follows illustrates how the GMR input subsystem, PLC subsystem, and
output subsystem combine to provide a high-availability, high-reliability system.

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