| 摘要 |
PURPOSE:To effectively reduce the number of connection lines in a slave station by connecting one or more supervisory and controlling item line concentration distribution circuits to a common circuit via a connection line, arranging every one controller to be supervised in the neighborhood of them, and performing the transfer of information between the common circuit and each supervisory and controlling item line concentration distribution circuit by a series signal. CONSTITUTION:The above system is equipped with one master station 1 and the common circuit 2 comprising one or more slave stations which perform the transfer of the information via a radio circuit, and one or more supervisory and controlling item line concentration distribution circuits 51-5n(5) are connected to the common circuit 2 via the connection line 6. Furthermore, every one of the controllers 31-3n to be supervised is arranged in the neighborhood of the supervisory and controlling item line concentration distribution circuits, respectively, and the transfer of the information between the common circuit 2 and each of the supervisory and controlling item line concentration distribution circuits 5 can be performed by the series signal. In such a way, it is possible to reduce the number of connection lines in the slave station. |
