| 摘要 |
PURPOSE:To make the operation of on-line and off-line, by providing a switching means between data and address buses of a terminal device connected to a microprocessor for a peripheral device and an interface with a sequence controller. CONSTITUTION:At off-line operation, when a microprocessor 1 operates a terminal device 6, a changeover switch 5 between data and the address bus is turned on, a required operation is made to a sequence program memory 4 with a processing program of a terminal device itself, and the content of operation is written in a control data memory 3. When a terminal device 8 is operated, the switch 5 is turned off and a changeover switch 7 between the data and the address bus is turned on and the required operation is made to the memory 4 with the program of the terminal itself, and the content of operation is written in the memory 3. At the one-line operation, the content written in the memory 3 is interpreted with a control memory 2, and the processor 1 performs processing after the operation to a sequence controller 10 with a microprocessor 12 via interfaces 9 and 11. |
