中图分类号：TP273；TP393.11 文献标志码：A DOI: 10.16157/j.issn.0258-7998.234341
中文引用格式： 马涛，于会群，彭道刚，等. 基于双线以太网的Modbus TCP-MQTT协议转换网关设计[J]. 电子技术应用，2023，49(12)：108-113.
英文引用格式： Ma Tao，Yu Huiqun，Peng Daogang，et al. Development of Modbus TCP-MQTT protocol transfer gateway based on single pair Ethernet[J]. Application of Electronic Technique，2023，49(12)：108-113.

Development of Modbus TCP-MQTT protocol transfer gateway based on single pair Ethernet

Abstract： With the development of the industrial Internet, single pair Ethernet is widely used in the field of industrial IoT and intelligent manufacturing with its data transmission and remote power supply capabilities, efficient use of space and cost savings. The single pair Ethernet protocol conversion gateway designed in this paper converts the single pair Ethernet Modbus TCP protocol to MQTT protocol, and sends the data to Ali Cloud Internet of Things platform. This paper first introduces the hardware and software architecture of the single pair Ethernet protocol conversion gateway system, and then verifies its feasibility by setting up the experimental environment and deploying the EdgeX Foundry platform. The test results show that the hardware of the single pair Ethernet gateway designed in this paper can carry out data transmission, the single pair Ethernet network port can reach the theoretical transmission rate under different bandwidth and length conditions, and the software of the single pair Ethernet gateway can receive Modbus TCP data normally and realize MQTT communication.

Key words : single pair Ethernet；gateway；protocol conversion