| 摘要 |
PURPOSE:To enable to use a computer as normal without stopping a device to be controlled, by switching a changeover means when either one of an input circuit, a CPU and an output circuit is at failure and using a backup circuit. CONSTITUTION:Circuits 2b, 3b and 4b backing up troubled parts are respectively provided for an input circuit 2a, a CPU 3a, and an output circuit 4a of a control electronic computer. Since changeover switches S1-S10 are selected with either one of the backup circuits 2b, 3b and 4b and a changeover control section 6 if either one of the circuits 2a, 3a and 4a is failed, the control electronic computer can be operated without interruption. |
