基于DeviceNet现场总线智能从节点的开发  

Development of DeviceNet Fieldbus Intelligent Slave Node

作　　者：刘代飞[1] 李吉力[1] 丁凤其[1] 郑文波 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083 [2]湖南中大业翔科技有限责任公司,湖南长沙410083

出　　处：《计算机测量与控制》2007年第3期384-386,409,共4页Computer Measurement &Control

摘　　要：DeviceNet是美国罗克韦尔公司提出的一种基于CAN技术的通信网络,其协议开放、结构简单、通讯可靠以及成本低廉是设备层现场总线的最佳选择;对DeviceNet基于连接通讯的特点和实现过程进行了论述;开发了基于DeviceNet的智能从节点,主机部分采用P89C61X2单片机,选择SJA1000作为CAN控制器,82C250作为报文收发器,建立了设备通讯测试平台;实践表明,该智能节点能实现DeviceNet规范。DeviceNet, which was published by Roeckwell company, is a kind of fieldbus based on the CAN technology. It is the best choice of the device-level because of its opening, low cost arid high performed communication network. The characteristics and realization process of connection communication are discussed. And the Slave Node Product based on DevieeNet is developed. The P89C61X2 single chip computer is used as the main part, SJA1000 is selected for CAN controller, and 82C250 for message transceiver. The communication test system has been established. The practice shows that the intelligent node is able to realize the requirement stated in DevieeNet specification.

关 键 词：DEVICENET CAN SJA1000 智能控制器 UCMM 连接 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]