基于现场总线的软件化开放式CNC体系结构

山东大学学报(工学版)

基于现场总线的软件化开放式CNC体系结构

武洪恩¹^，²，张承瑞¹，胡天亮¹

1. 山东大学机械学院，山东济南 250061；2. 山东科技大学机械电子工程学院，山东青岛 266510

收稿日期:2006-06-15 修回日期:1900-01-01 出版日期:2007-04-24 发布日期:2007-04-24
通讯作者: 武洪恩

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

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

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

摘要/Abstract

摘要： 将现场总线引入控制系统的硬件体系结构，使每个外部设备都成为现场总线通信网络中的一个节点，构成基于现场总线的数控系统，使硬件安装和扩展方便，提高了系统的可靠性和控制精度.结合现场总线的特点和开放式系统的要求，提出了一种基于现场总线的开放式CNC(Computer Numerical Control)系统的体系结构，该体系结构划分为应用层、控制层和设备层三个层次，对每一层的功能进行了系统的分析和描述.总线规范采用自主开发的实时串行总线技术，基于Windows 2000操作系统平台，采用COM/DCOM技术的软件设计方法，实现数控系统的软件模块的重用与扩充，满足数控系统开放性的要求.

关键词: 现场总线, 开放式系统, 体系结构, 实时串行通讯总线

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

中图分类号:

TP273

武洪恩,张承瑞,胡天亮 . 基于现场总线的软件化开放式CNC体系结构[J]. 山东大学学报(工学版), 2007, 37(2): 12-15 .

WU Hong-en,ZHANG Cheng-rui,HU Tian-liang . The architecture of the software open CNC system based on the fieldbus[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(2): 12-15 .

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