¹School of Computer Science and Technology, University of Science and Technology of China, Hefei, China
²Shenyang Institute of Computing Technology, Chinese Academy of Sciences, Shenyang, China
³Graduate School of Chinese Academy of Sciences, Beijing, China

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Abstract—For solving the security problems caused by the errors occurred during the real-time transmission of the fieldbus in the CNC system, a new transmission scheme, which involves the error detection and self-correction, was proposed based on the dual ring fieldbus in the CNC system. This scheme specifies a structure of two-way transmission in fieldbus and a data format with self-correcting function as well as related detection and correction method was designed. The result of testing demonstrated that, comparing to the existed method, this scheme excellently met the real-time requirements of CNC system while effectively reducing the retransmission probability and improving the efficiency.

Index Terms—Error correction, dual ring fieldbus, real-time performance, retransmission probability, CNC system.

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Cite: Lei Yang, Hu Lin, Dongfeng Yue, Tianrong Gao, "A New Error-Correcting Transmission Method for Dual Ring Fieldbus in CNC System," Journal of Computers vol. 7, no. 10, pp. 2432-2438, 2012.