Open-architecture Motion Control System Based on PC

Considering the characteristics of motion controller and the development trend of open NC system,an open-architecture motion controller system based on the technique of motion control,which has double CPU and uses motion controller as its control system kernel and industrial control computer as its system sustaining cell was presented,the system function,hardware configuration and the method of software design were introduced.Applying software on control system,two processes,Win32 process manages off-line tasks and RTX process manages on-line tasks were used.Data exchange between two processes were carried out by shared memory.It is proven that this motion controller system completely achieves some excellent capabilities such as precise trajectory,little responding time,high precision in fixing position.