| 摘要 |
PURPOSE:To provide many kinds of functions and to improve the facility of maintenance, by dividing a microprocessor into a basic section and an operation section and writing the contents of the operation section from a computer. CONSTITUTION:In a process input and output control performing the input and output control of signals between a plant PD and the computer CPU, the contents of a data processing memory MPD of a processor processing data for the signal input and output control with the plant PD are changed by the computer CPU. The start of the function of the process input and output is given to the basic section MPB to attain data processing for the operation MPD in accordance with the modified contents. |
