摘要首先介绍了当前控制系统中网络冗余的基本思想，然后分析了FF HSE 通信协议中网络冗余系统的构架，最后阐明了网络冗余实体的实现过程。该实体能够为上层应用程序提供可操作的网络接口，并且在网络故障时实现透明切换，从而保证了HSE 网络系统的稳定运行。关键词网络冗余现场总线HSEAbstract The basic concept of network redundancy in current control systems is introduced firstly. Then，the frame of network redundancy in FF HSE communication protocol is analyzed. The implementation procedure of network redundancy entity is described finally. The entity is able to provide operable network interface for application programs in higher，and implement transparent switchover while network fails，thus the stable operation of HSE metwork system is ensured.Keywords Network redundancy Fieldbus High speed Etherne（t HSE）