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哈密市污水处理厂是年处理10万m3城市生活污水的现代化污水处理厂,自动控制系统采用现场PLC工作站加上位监控计算机组成的SCADA系统。上位机与现场PLC工作站通过光纤及交换机组成星形以太网(工业以太网),中控室上位机SCADA系统对各PLC节点进行“集中管理,分散控制”。污水处理厂SCADA系统主要功能如下:(1)数据采集。对系统内部各阀门和机器设备的开关量信号
Hami Municipal Sewage Treatment Plant is a modern sewage treatment plant that treats 100,000 m3 of municipal sewage every year. The automatic control system uses on-site PLC workstations plus a SCADA system consisting of a monitoring computer. The host computer and on-site PLC workstations are composed of star Ethernet (industrial Ethernet) and fiber optic switchboards. The SCADA system in the control room is used for “centralized management and decentralized control” for each PLC node. Sewage treatment plant SCADA system main functions are as follows: (1) data acquisition. On the system of valves and machinery and equipment of the switch signal