| 摘要 |
PURPOSE:To completely disconnect a faulty device, by cutting off all devices to be controlled from a common bus while the signal which separates the faulty device is flowing to the common bus and accordingly preventing the transmission of noise to the common bus. CONSTITUTION:When a processor CPU detects that a fault arises at one of devices X1-Xn to be controlled, e.g., the device X1, the processor CPU sends a command to a non-individual controller F to set the corresponding flip-flop. With the output of the flip-flop, switches SW12-SWn2 are all cut off at a time and then controlled. As a result, all devices X1-Xn are cut off at a time from a common bus B. The processor CPU transmits the information to an individual controller Y to connect all nondefect devices X2-Xn to the bus B excepting for the favlty device X1. |
