PURPOSE: To restrain the influence upon processings of other systems to a minimum, by turning off the switching device of the system, where power supply abnormality occurs, in advance of the stored program control, in the system where plural CPUs use plural peripheral devices in common.
CONSTITUTION: CPUs 1-1W1-3 and peripheral device systems 3-1W3-n are linked by turning on and off CPU busses 2-1W2-3 and peripheral device system busses 4-1W4-n through switching devices SW11WSW3n. Power is supplied to respective CPUs and peripheral devices by power supply devices 6-1W6-3 and 7-1W7-n. Configuration processing device 8 which performs the power supply control of systems in accordance with abnormality of power supply devices by the stored program control is provided with advanced processing part 9 and processor part 10. When abnormality occurs in a power supply device, processing part 9 performs the control to turn off the switching device related to the abnormal power supply without waiting the processing obtained by processor 10, and after that, processor part 10 reports the turning-off state of the switching device to CPUs through configuration control devices 5-1W5-3.
IMAI KUNIKAZU
SUZUKI AKIHIKO
ASOGO HIROYUKI
