| 摘要 |
PURPOSE:To reduce memory capacity and to improve the throughput of a control section by storing new information from plural slave stations to a storage section provided to a display control section, and reading and reading and displaying the information from the storage section when display request exists. CONSTITUTION:A slave station number and a word number inputted cyclicly from an address bus AB of a display control section DC of a remote supervisory controller are latched L1, L2 via an address decoder AD1 and this data is reduced to an address signal at an address decoder AD2 and designates an address of storage sections M1-Mn provided at each slave station. The new information of each slave station inputted from a data bus DB is stored by the designated address. Then, the slave station number and the word number of the information to be displayed are set by setting switches S1, S2. The information is read from the storage sections M1-Mn according to the number set by the S1, S2 by using a display enable signal inputted to a display enable signal input terminal (t), and displayed on maintenance panels P1, P2. |
