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首页> 外文期刊>The Open Automation and Control Systems Journal >Research and Implementation of PLC Communication Network Based onCAN
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Research and Implementation of PLC Communication Network Based onCAN

机译：基于CAN的PLC通讯网络的研究与实现

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摘要

Field bus is an industrial data bus which has developed rapidly in recent years. It is mainly used to solve digitalcommunications among field equipments, and message passing between field equipments and executive control systems.CAN bus is a kind of serial communication network supporting distributed control and real-time control effectively, and itapplies double serial communication mode and has good error-detecting capacity, which makes it can work in high-noiseor jammed environments and has higher reliability. The paper proposes PLC communication network scheme based onCAN bus. The scheme configures a RS232-CAN gateway on upper computer PC and each PLC to make upper computerPC and PLC have the ability of CAN bus communication for creating PLC communication network based on CAN bus.PLC network created by the scheme not only can realize centralized monitoring of PC on several PLCs and direct communicationamong PLCs, but also has higher cost and higher ability of system extension.
机译：现场总线是近年来发展迅速的工业数据总线。它主要用于解决现场设备之间的数字通信，以及现场设备与执行控制系统之间的消息传递。CAN总线是一种有效支持分布式控制和实时控制的串行通信网络，它采用双串行通信方式，具有良好的通信性能。错误检测能力，使其可以在高噪声干扰的环境中工作并具有更高的可靠性。提出了基于CAN总线的PLC通讯网络方案。该方案在上位机PC和每个PLC上配置了一个RS232-CAN网关，使上位机PC和PLC具有CAN总线通讯的能力，可以建立基于CAN总线的PLC通讯网络，该方案创建的PLC网络不仅可以实现集中监控PC可以在多个PLC和PLC之间直接通讯，但是具有更高的成本和更高的系统扩展能力。

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