| 摘要 |
PURPOSE:To simplify the control of each terminal by providing a data collector unit with a function of supervising the polling signal of a terminal controller and an on-line processing function. CONSTITUTION:Therminal controller 1 is connected to data collector unit 4 via circuits 2-0 to 2-n, and data entry units 3-1 to 3-m which correspond to terminals are also connected to collector unit 4 by using circuit 2-0. Inside of this unit 4, line adapter 5A connected to the control side, line adapter 5B connected to the entry-unit side, data-collector control part 6, contact 7 causing interruption between controller 1 and entry unit 3, transmission parts 8A and 8B, and reception parts 9A and 9B. Further, control memory 10, CRT11, printer 12, keyboard 13, and memory file 14 are provided, and the ON-OFF process of memory file 14 is performed while the superyision over controller 1 is being exercised. |
