| 摘要 |
PURPOSE:To prevent the malfunction of switching by providing a data switching unit with a processor make a logical decision as to system switching and by making logical decisions for mode transition at one place convergingly. CONSTITUTION:Computers 3-1 and 3-2 couple with microprocessor muCPU3-8 via process input-output devices 3-5, 3-6 and 3-7, and muCPU dispalys the failure of conditions of an operation mode and system switching. Once stop detector 3-3 outputs a computer stop signal, for example, when computer 3-1 is in a control mode and computer 3-2 is in a standby mode, muCPU3-8 makes a logical decision on the basis of the combination among previously fixed operation modes, and then, outputs a control mode operation indication to computer 3-2 via devices 3-7 and 3-6 simultaneously with the indication of the connection to the sequence of computer 3-2 to process switching unit 3-13. |
