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自控系统共设10个PLC站,通信介质采用多模光纤,经氧化沟处理工艺,排放水质达到国家排放标准。现场数据采集、设备自动控制任务是通过AB-5000系列PLC来实现的。PLC通过采集现场仪表的生产实时数据和控制设备的状态信息,根据现场工艺的要求,实现污水厂的过程控制、顺序控制、联锁控制以及设备的开机、停机等各种操作,完成污水厂的自动控制。现场控制站的PLC通过网络与上位机交换数据,接收上位机的控制命令,实现远程控制。
A total of 10 automatic control system PLC station, communication media using multimode fiber, the oxidation ditch treatment process, the discharge of water quality to meet national emission standards. Field data collection, automatic control equipment is achieved through the AB-5000 series PLC. PLC through the acquisition of real-time data on-site instruments and control equipment status information, according to the requirements of the site process to achieve the sewage treatment plant process control, interlock control and equipment startup, shutdown and other operations to complete the sewage plant Automatic control. Site control station PLC through the network with the host computer to exchange data, receive PC control commands to achieve remote control.