| 摘要 |
PURPOSE:To supply a batch to many terminal controllers simultaneously, by providing a batch control circuit including an RAM for batch area besides a normally used ROM. CONSTITUTION:When a cahnge position occurs, change data is sent from a center controller. A receiving part 1 analyzes this data, and an RAM writing part 3 writes it in an RAM2 for batch area. Next, when a switching indication is sent from the center controller, a wait processing part 4 subjects the control circuit to the wait processing after the end of an executing processing. A relay A is operated to switch its contact (a), and the ROM is disconnected, and the RAM2 is connected. After the end of switching, wait is released. When wait is released, the control circuit uses data of the RAM2 to execute a program. Thus, a batch program is supplied to many terminal controllers easily. |
