Through using network connecting mode of ether star structure, the distribubuted control system has been changed from busbar network topologic structure into a star network topologic structure.
通过采用以太网星形结构的网络连接方式,将分散控制系统由总线形网络拓朴结构改为星形网络拓扑结构。
The network topologic structure associated with the GE90-30 PLC used in the heating furnace system was described, and its applications in the control system for the furnace presented.