| 基于以太网的嵌入式软PLC通信体系设计 |
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| 引用本文： | 庞伟,龙辛,黄波.基于以太网的嵌入式软PLC通信体系设计[J].山西机械,2014(1):34-36. |
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| 作者姓名： | 庞伟 龙辛 黄波 |
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| 作者单位： | [1]湘潭大学信息工程学院 电气工程系,湖南 湘潭411105 [2]湘电风能有限公司,湖南 湘潭411105 [3]长沙优利泰克自动化信息技术有限公司,湖南 长沙410000 |
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| 摘 要： | 采用FPGA和W5100芯片搭建了嵌入式软PLC网络系统，主控制核心模块采用了PowerPC和FPGA的主从处理器模式，实现了数据的分工处理，克服了以往单CPU工作时系统资源占用率过高的问题。在此开放式硬件平台下，设计了基于时间片轮询的稳定可靠分时数据通信系统；为了适应具有不同网络协议设备的控制需求，系统内部集成了CANopen、Modbus/TCP等协议。最后，对通信系统进行了相关测试。实验结果表明，系统通信正常，且具有很好的实时性和稳定性。
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| 关 键 词： | 以太网 通信体系 |
Design of Embedded Soft-PLC Communication System Based on Ethernet |
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| PANG Wei,LONG Xin,HUANG Bo.Design of Embedded Soft-PLC Communication System Based on Ethernet[J].Shaanxi Machinery,2014(1):34-36. |
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| Authors: | PANG Wei LONG Xin HUANG Bo |
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| Affiliation: | 1. College of Information Engineering, Xiangtan University, Xiangtan ,111105, Chinal 2. XEMC Windpower Co. , Ltd. , Xiangtan 411105, China 3. Changsha Jinbolian Information Technology Co. , Ltd. , Changsha 410000, China) |
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| Abstract: | An embedded PLC network system based on FPGA and W5100 chip is designed ,which is simple in structure and easy to be extended ;the main control module uses the master-slave processor mode of PowerPC and FPGA ,to realize the division of data processing .On the open hardware platform ,a stable and reliable time-sharing data communication system is designed .In order to meet the requirements of different network protocols of control equipment ,the system integrates CANopen and Modbus/TCP protocols . Finally ,the communication system is tested .The experimental results show that the communications system is of good stability . |
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| Keywords: | 软PLC Ethernet soft-PLC communication system |
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