Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network

Industrial Ethernet System Design and Driver Development of Computerized Numerical Control System

Author MaJin
Tutor WangWei
School Shanghai Jiaotong University
Course Control Theory and Control Engineering
Keywords Industrial Ethernet Bus TCP / IP Real-time CNC system
Type Master's thesis
Year 2010
Downloads 150
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The high-end CNC machine tools as an important industrial manufacturing equipment , the need to achieve high-speed and high finishing capabilities , multi-channel , multi-axis composite machining functions . Establish a high-speed real - time data transmission channel between the CNC systems and computer is an important guarantee to realize the system function . The design goal of this article is to ensure the communication of the computer and the servo unit to meet the real-time performance and reliability requirements of the CNC system . Design a bus communication module used in the numerical control system of industrial Ethernet and industrial Ethernet drivers for the PC development , application program interface ( API ) used to control the bus and transfer data for CNC system control program and achieve high - speed and reliable communication between PC and CNC systems . RTX (Real-Time Extension) software will be used to improve the real-time nature of the bus , providing strong real-time environment compatible with windows . Real - time programs of study Industrial Ethernet Universal Driver industrial Ethernet real-time implementation of the API to write standards-compliant Windows Driver Model (WDM) driver to achieve stability of the numerical control system in the aspects of communication high , and strong real-time requirements . In this thesis, the Industrial Ethernet standard , including industrial Ethernet architecture , protocol hierarchy and communication model , especially the TCP / IP protocol . According to the system requirements , the design of industrial Ethernet communication module . After detailed analysis from the perspective of principles, characteristics and practical applications of the RTX real-time environment . RTX as Windows subsystem provides a kernel-mode executable environment for those with strong real-time nature of the Win32 compatible tasks and threads . In addition , the text on the the NC Industrial Ethernet front-end communication module made ??detail . PCI - Ethernet interface card as the host computer interface , the design of the a specialized industrial Ethernet front-end module as servo control module interface . Subsequently, this article focuses on the Ethernet protocol , direct through the RTX API function of the Ethernet chip registers to achieve data transmission . Verify that the system has high reliability and real-time , sufficient to meet the high-end CNC system performance requirements .

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