| 摘要 |
PURPOSE:To allow information to be utilized at a control center side and a job site side which controls a load on time-division basis, and reduce the number of wires by providing a common data transmission line between the control center side and job site side as wiring which transmits pieces of information on the operations or operation display of operation switches and switches for maintenance. CONSTITUTION:The control center CC of a remote controller is fractionized into operation boxes 1 corresponding to loads, which are controlled by a switch such as an incorporated contact MC. The boxes are connected to a motor 3 through load power source lines 2 for said control. The operation box 1 in this center CC and each control box 4 at a job side which controls the motor 3 are concted together by the two-wire type common transmission line 5. Then, the operation box terminal 11 in this operation box 1 and the control box terminal 41 in the box 4 are period for each load. Then, information is processed by both terminals 11 and 41 on time-division basis to reduce the number of wires between the center CC and actual site. |
