| 摘要 |
PURPOSE:To improve the reliability for system fault display when a controlling device detects the fault of a path including a bus by preparing a path directly transmitting the fault status of said path to a system display part. CONSTITUTION:A main controlling device 2 is provided with an FF group 8 controlling a bus fault indicating lamp 11 and an indicating lamp 12 for maintenance signal distributing device faults both of which are provided to a system display part 5 directly through paths 9, 10. When the generation of a fault on a bus 3 is discriminated, the device 2 sets up a bus fault FF in the FF group 8 and lights up the indicating lamp 11 in the display part 5. When the generation of a fault in the maintenance signal distributing device is discriminated, the device 2 sets up its corresponding FF in the FF group 8 and lights up the indicating lamp 12 in the display part 5 through the path 10. Consequently fault display for the information processing system is further completed and its reliability is improved. |
