| 摘要 |
PURPOSE:To ensure the control of each device within the station except for the monitor station by securing a centralized circuit control for the data highway through the monitor station. CONSTITUTION:With operation of monitor station 400, an order is given to station 401 like (a), and the state of 401 is received along with the state of the connected device. This reception information is memorized in the memory within station 400. When the transfer is over with 401, 401 is by-passed like (b) to give an order to station 402. And the similar operation is given to receive the state of the device to be stored in 402 as well as the state of 402 and then to be memorized in the memory. After this, the states of all stations and devices are grasped by 400 like (c) and (d), and the grasped information is sent to each of stations 401 403 to be memorized respectively. The device uses the state information at the outgoing time. |
