Abstract: This paper presents a TCMS HMI Ethernet communication solution based on Modbus/TCP, introduces in detail the implementation of this solution, takes in-depth research on the communication redundancy and reliability. This solution had eventually been applied to a metro project of a foreign city. The on-site operation results show that the HMI implemented by this solution operates stably, and both the real-time performance and redundancy meet the requirements.

Key words: train control and monitoring system, human-machine interface, Modbus/TCP, redundancy

摘要： 提出一种基于Modbus/TCP的列车网络显示屏以太网通信的解决方案，详细介绍该方案的实现方法，开展通信冗余性、可靠性的深入研究，并最终应用到某国外地铁列车通信网络项目中。现场运行结果表明，利用该方案实现的显示屏运行稳定，实时性及冗余性均符合要求。

关键词: 列车网络控制及监控系统, 显示屏, Modbus/TCP, 冗余