EtherCAT与Modbus协议转换网关的设计及实现  

Designand Implementation of the Protocol Conversion Gateway between EtherCAT and Modbus

作　　者：徐健[1] 宋宝[1] 唐小琦[1] 

机构地区：[1]华中科技大学机械科学与工程学院,武汉430074

出　　处：《组合机床与自动化加工技术》2015年第4期71-73,77,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金："高档数控机床与基础制造装备"科技重大专项(2012ZX04001012);国家科技支撑计划(2012BAF13B01);广东省部产学研重大专项(2012A090300012)

摘　　要：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Ether CAT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Ether CAT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。To solve the interoperability problem of different fieldbus protocol equipment for industrial applications,firstly,this paper studies deeply the principles and operating mechanism of two kinds of fieldbus protocols which are Ether CAT 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 platform is built for experimental testing standard protocol equipment. The experimental results showthat the protocol conversion gateway can achieve the communication between Ether CAT standard equipment and Modbus standard equipment,which has realized the conversion function between two networks.

关 键 词：ETHERCAT MODBUS 网关 协议转换 

分 类 号：TH166[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]