【摘要】 在以ＳＴＤ总线为基础的多ＣＰＵ紧耦合数控系统中，采用了缓冲区技术，公用存储区技术，并较合理地处理了机床补偿信息和使用绝对坐标系、相对坐标系混合编制用户零件加工程序等问题，较好地解决了影响数控机床加工生产率的用户加工程序前置处理问题，提高了ＣＮＣ系统的实时处理能力。更多还原

【Abstract】 In CNC system based on STD bus and multi CPU, the preprocessing strategies such as using buffers, RAM which can be visited by multi-CPU,processing adjust messages of the machine tool and mixed coordinates properly are discussed. The CNC systemis real time processing ability and the productivity of machine tool will be improved by using the methods discussed here.更多还原