| 摘要 |
PURPOSE:To impress monitoring reliability by accumulating in a common storage device a common data of plural central control devices for processing a data switched by a switching device, and exchanging a data for discriminating an operating state of the central control device. CONSTITUTION:In a ship engine part, one of measuring data from external input/output apparatuses 15a, 15b is switched and selected by a switching device 16, is supplied to central control devices 21a, 21b through input/output devices 14a, 14b, and also is accumulated and stored in a common storage device 23. The devices 21a, 21b process the measuring data from the apparatuses 15a, 15b and operating data from operating devices 13a, 13b, respectively, and display them on display devices 12a, 12b, respectively. The device 23 is provided with a function for monitoring two groups of devices 21a, 21b at all times, discriminates by exchanging a data whether the devices 21a, 21b are operated normally or not, and when one detects abnormality, it is switched to the other by giving a command to the device 16. |
