| 摘要 |
PURPOSE:To execute the self-diagnosing by the cutting and separating of the memory unit, the automatic re-rising based upon the diagnosing result, the re-rising by the initialization at the time of generating the temporary error and so on. CONSTITUTION:A microprocessor 63 communicates through a sharing memory bus 33a, sharing memory ports 34a-1-34a-n and sharing memory interfaces 44-1-44-n of computers 40-1-40-n with the same computers 40-1-40-n. The double control of a sharing memory device 30 is executed by a double control circuit 74 selected out of the sharing memory interfaces 44-1-44-n of the computers 40-1-40-n. Thus, the connection and the separation of the optional memory unit, in which it is necessary to execute by means of the console panel operation by the operator conventionally, are executed by informing the sharing memory controller in the purpose unit of a sharing memory device 30 of the request from the computers 40-1-40-n.
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