摘要 |
PURPOSE:To omit the trouble where a commander performs storage by own operation and to attain the reconnection with a quick operation, by storing successively the held circuit numbers to a controller for connection to a command board for each command board. CONSTITUTION:The holding operations and the holding reconnection operations of circuits are all coded to command boards 21-2n of a holding reconnection system. These codes are always scanned by a scan part 7 of a controller 4 for each command board. A memory circuit 10 of the controller 4 stores the circuit numbers connected every command board in the holding order. The circuit numbers are stored to the circuit 10 by the holding operations of the boards 21-2n and based on the held circuit numbers. Then a holding ON signal is turned on via a trunk control part 5 to the corresponding circuit trunk 1. Thus a holding state is secured and at the same time a switch 3 is turned off via a switch control part 5. This attains the reconnection with a simple and quick operation. |