在变电站综合自动化系统的发展过程中，先后出现了多种形式的站内通讯网，如RS485、现场总线、以太网，它们分别满足了不同时期，不同电压等级变电站自动化系统的需要。-In order to satisfy the demand for the communication capacity in the future,we develop a new embedded communication platform,which could be calledenhanced MASTER.The new communication embedded communication platform has much improvement in the capacity of communication and computation.