提出并初步实现一种基于PC的分布式数控系统结构.数控系统各功能节点采用现场总线通信,主-从站之间采用同步报文的方式实现通信与同步.采用模块化设计和两级任务调度策略,保证系统具有良好的开放性、实时性和可重构.%A PC-based distributed CNC architecture was proposed and implemented primarily. Field bus was applied for communications among CNC system functional nodes. Communication and time synchronization between master stations and slave stations were executed by technology of synchronous message. Its good performances of opening, real-time and reconfigurable are conduced by the modular designing and two-level scheduling strategy applied on CNC system.
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