Do communication control duplex module device between Electric power watch protection machinery with Electric power host system

摘要

A communication control duplex module device between an electric power host system and an electric power protector is provided to prevent a safe accident by similarly controlling the system in a calculation memory when an error is generated at one of CPUs due to an excessive current or an excessive voltage. A communication control duplex module device between an electric power host system and an electric power protector includes a modem(10), an operation memory part(20), an operation memory controller(23), an operation control part(22), a CPU controller(33), a data storage, a display and an output part. The modem transitive data with the electric power host system, and the operation memory part consists of first and second operation memories(21,22). The operation memory controller detects data signals of the first and second operation memories and controls the usage of the two operation memories when one of the operation memories gets an error by detecting the data signal. The operation control part consists of first and second CPUs(31,32). The CPU controller controls usage of the two CPUs by detecting an operation data signal generated from the two CPUs. The data storage stores a result of operated data and event. The display shows a control state. The output part outputs the operated data to each electric power protector.