CAJ | 학술논문

为解决工业应用中不同现场总线协议设备之间不能进行互联互通的问题，首先深入研究了EtherCAT和Modbus两种现场总线协议通信的原理以及运行机制，分析并阐述了基于对象字典映射方法的协议转换网关实现的原理，然后设计了基于“STM32+FPGA”架构的协议网关实现的软硬件方案，并搭建实验平台进行标准协议设备的实验测试，实验结果表明，该网关实现了EtherCAT标准设备与Modbus标准设备通信，从而实现了两种网络协议的转换功能。
위해결공업응용중불동현장총선협의설비지간불능진행호련호통적문제，수선심입연구료EtherCAT화Modbus량충현장총선협의통신적원리이급운행궤제，분석병천술료기우대상자전영사방법적협의전환망관실현적원리，연후설계료기우“STM32+FPGA”가구적협의망관실현적연경건방안，병탑건실험평태진행표준협의설비적실험측시，실험결과표명，해망관실현료EtherCAT표준설비여Modbus표준설비통신，종이실현료량충망락협의적전환공능。
To solve the interoperability problem of different fieldbus protocol equipment for industrial appli-cations, firstly, this paper studies deeply the principles and operating mechanism of two kinds of fieldbus protocols which are EtherCAT and Modbus, analyzes and explains the principle of the implementation of protocol conversion gateway which is based on object dictionary mapping method, and then designs protocol gateway’ s hardware and software solutions based on"STM32 + FPGA"architecture. Furthermore, a plat-form is built for experimental testing standard protocol equipment. The experimental results show that the protocol conversion gateway can achieve the communication between EtherCAT standard equipment and Modbus standard equipment, which has realized the conversion function between two networks.