Quad-redundant controller

ASCO Ethernet redundancy and I/O solution is said to simplify efficient operation, reliability, and serviceability of quad-redundant programmable logic controllers for paralleling-control switchgear. It includes a set of system diagnostics that signal any failure. Information is displayed on the master PLC, I/O communication-status screen, and displayed and logged on the company’s PowerQuest power-monitoring and control system. The solution supports as many as four master PLCs and 50 smart Ethernet interface units.
Emerson Network Power, Florham Park, NJ

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