3.4计算机数控系统的软件体系结构3.4.1 CNC系统软、硬件界面数控系统是由软件和硬件组成的,硬件为软件的运行提供了支撑环境,软件结构取决于CNC系统中的软件和硬件分工。在信息处理方面,软件和硬件在逻辑上是等价的,在CNC系统中,由硬件完成的工作,原则上也可由软件来完成,但是硬件和软件各有不同的特点,硬件处理速度快,但造价 3.4 Computer numerical control system software architecture 3.4.1 CNC system software and hardware interface CNC system is composed of software and hardware, hardware provides a support environment for the operation of the software, the software structure depends on the CNC system software and hardware division of labor. In information processing, the software and hardware are logically equivalent. In the CNC system, the work done by the hardware can also be accomplished by software in principle. However, the hardware and software have different characteristics, the processing speed of the hardware is fast, But the cost