| 基于 FPGA 的 EtherCAT 从站模块设计 |
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| 引用本文： | 吴 超,王成群,徐伟强,朱升宏,贾宇波.基于 FPGA 的 EtherCAT 从站模块设计[J].教育技术导刊,2020,19(7):11-14. |
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| 作者姓名： | 吴 超 王成群 徐伟强 朱升宏 贾宇波 |
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| 作者单位： | 1. 浙江理工大学 信息学院；2. 新华三技术有限公司，浙江 杭州 310018 |
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| 摘 要： | EtherCAT 作为高性能工业以太网的代表，凭借其低延迟、高速率、高吞吐率等特点在工业自动化领域得到了广泛应用。针对目前 EtherCAT 从站需要依赖国外专用从站控制器芯片以保证网络性能的问题，提出一种使用 FPGA 芯片代替专用从站控制器芯片的 EtherCAT 从站软硬件方案。利用示波器测量 EtherCAT 从站的各项性能，测试结果表明，该设计方案与其它采用专用控制器芯片的 EtherCAT 从站方案相比，可提高 EtherCAT网络的实时性能，减小通信周期抖动。该方案降低了 EtherCAT 从站实现成本，且拥有自主知识产权，可满足工业通信高实时性、低时延的要求。
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| 关 键 词： | 工业以太网 通信协议 EtherCAT FPGA |
| 收稿时间： | 2019-11-09 |
The Design of EtherCAT Slave Module Based on FPGA |
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| WU Chao,WANG Cheng-qun,XU Wei-qiang,ZHU Sheng-hong,JIA Yu-bo.The Design of EtherCAT Slave Module Based on FPGA[J].Introduction of Educational Technology,2020,19(7):11-14. |
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| Authors: | WU Chao WANG Cheng-qun XU Wei-qiang ZHU Sheng-hong JIA Yu-bo |
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| Institution: | 1. School of Information，Zhejiang Sci-Tech University；2.H3C Co.，Ltd.，Hangzhou 310018，China |
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| Abstract: | As the representative of high performance industrial ethernet，EtherCAT has been widely used in the field of industrial automation due to its low latency，high speed and high throughput. Aiming at the current situation that EtherCAT slave station needs to rely on foreign special slave controller chips to ensure network performance，this paper proposes a hardware and software scheme of Ether?
CAT slave station using FPGA chips instead of special slave controller chips. The performance of the EtherCAT slave station is measured by an oscilloscope. The test results show that the design scheme can improve the real-time performance of the EtherCAT network and reduce the jitter of the communication cycle compared with other EtherCAT slave station schemes using dedicated controller chips. This scheme reduces the implementation cost of EtherCAT slave station and has independent intellectual property rights，which meets the requirements of high real-time and low delay in industrial communications. |
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| Keywords: | industrial Ethernet communication protocol EtherCAT FPGA |
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