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The architecture of the software open CNC system based on the fieldbus

WU Hong-en1，2，ZHANG Cheng-rui1，HU Tian-liang1   

  1. 1. School of Mechanical Engineering，Shandong University，Jinan 250061，China；2. College of Mech. & Elec. Engineering，Shandong University of Science & Technology，Qingdao 266510，China
  • Received:2006-06-15 Revised:1900-01-01 Online:2007-04-24 Published:2007-04-24
  • Contact: WU Hong-en

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Abstract: Fieldbus system is introduced into CNC hardware frame as data exchange interface between PC and digital servos or I/O equipments, which brings the convenient construction and expansion, the increased reliability and control precision. Combined the characteristics of fieldbus with the requirements of open CNC system, the architecture of fieldbus based open CNC system is presented. The system is divided into application layer, control layer and device layer. The functions of each layer are analyzed and described. The CNC system selects realtime serial communication bus as fieldbus interface, and Windows 2000 as software platform. CNC software is implemented by COM/DCOM. The system realizes the reusability and expansibility of the software modules and meets the requirements for the openness of CNC system.

Key words: open system, architecture, realtime serial communication bus , fieldbus

CLC Number: 

  • TP273
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