摘要：
根据数控系统对现场总线通信的可靠性和效率需求，在分析传统通信机制的实时性和效率问题及其产生根源的基础上，提出一种基于硬件链路层重发机制的高效可靠通信机制，将其应用到数控系统中，消除了层间协议转换和操作系统的中断延迟等开销。实验结果表明，该机制具有较高的实时性和通信效率，能够满足高档数控系统的应用需求。
关键词:
数控系统,
现场总线,
高效可靠通信,
高精度加工
Abstract:
For the requirement of reliable communication and efficiency of Computer Numerical Control(CNC) system to field-bus, this paper analyzes the efficiency of traditional field-bus and its causation, and designs a high efficiency and reliable communication mechanism based on hardware link layer retry. Mechanism is successfully used into CNC system, it eliminates layer protocol transform and interrupt delay of operating system. Experimental results show that the mechanism has high efficiency and real-time, it can meet the requirement of CNC system application.
Key words:
numerical control system,
field-bus,
high efficiency and reliable communication,
high precision machining
中图分类号:
王志成, 于东, 李培新, 陈猛. 数控系统现场总线通信效率的改进[J]. 计算机工程, 2011, 37(10): 23-25.
WANG Zhi-Cheng, XU Dong, LI Pei-Xin, CHEN Meng. Improvement of Field-bus Communication Efficiency in Numerical Control System[J]. Computer Engineering, 2011, 37(10): 23-25.