现场总线FCS 技术在当前自动化领域的应用越来越广泛。本文详细讲述基于工业设备联机控制系统的CAN 总线节点的设计,对节点的软、硬件设计进行了详细的说明。根据系统需要设计了不同类型的CAN 总线节点。节点间通讯方式多样。系统适合于一个场所多机联网控制、多楼层设备联机控制,或对多个特定的场所进行联网控制等。系统具有扩展性,可将上位机通过特定的CAN 接口器件连接,对系统进行监控。关键字: 设备控制系统; CAN 总线节点; 微控制器Abstract: CAN (Controller Area Network) is one of popular field bus and a new kind of network based on micro control unit. The paper introduces the CAN node based on the industrial instruments controlling system and node design of hardware and software. The paper design different CAN nodes which can communicate each other in several modes. The node can be applied in control network which is composed of many special sites or industrial workshops. The system can be monitored through personal computer which connected the CAN bus through special CAN device.Keywords: Air-Condition Control System; CAN Bus Nodes; Micro Controller
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