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Software-based open CNC architecture based on fieldbus

  • 2013-09-19
  • 266.23KB
  • Points it Requires : 1

Abstract: Introducing fieldbus into the hardware architecture of the control system makes each external device a node in the fieldbus communication network, forming a numerical control system based on fieldbus, making hardware installation and expansion convenient, and improving the reliability and control accuracy of the system. Combining the characteristics of fieldbus and the requirements of open system, an architecture of open CNC (Computer Numerical Control) system based on fieldbus is proposed. The architecture is divided into three levels: application layer, control layer and device layer, and the functions of each layer are systematically analyzed and described. The bus specification adopts the real-time serial bus technology developed independently, based on the Windows 2000 operating system platform, and adopts the software design method of COM?DCOM technology to realize the reuse and expansion of the software modules of the numerical control system, meeting the requirements of the openness of the numerical control system. Keywords: fieldbus; open system; architecture; real-time serial communication bus

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