| 摘要 |
PURPOSE:To enable to restart a slave station simply without using a special signal by generating a clear signal when a master station detected abnormality in a slave station, and restarting the slave station after cutting off a control circuit forcibly by the master station. CONSTITUTION:When a slave station 2 falls into abnormality due to retardation of control etc. and becomes unable to restore by itself, the master station 1, on detecting the abnormality through an indicating circuit 4, connects a switch for slave station restoration, and a contact 6 is made open, and a control circuit 3 is made off forcibly for a fixed time. When the slave station 2 detects off of the circuit 3 by a demodulation circuit 8, starts a timer circuit 14 and a clear signal forming circuit 15, and a clear signal of a fixed time width is outputted from the circuit 15, and power clear of a logical circuit 7 is made. That is, the slave station 2 is restarted. |
