中文摘要：

针对废塑料炼油化工厂控制要求,该系统采用了西门子的可编程逻辑控制器和相应的组态软件,连同工业现场的各种类型的传感器、扩展设备,对废塑料炼油化工车间设备进行实时数据采集,以达到稳定的实时检测和远程控制。该文详细介绍了监控系统的结构和工作方式,特别是裂解反应釜温度控制系统的设计。实际结果显示该系统较好地达到了设计目标

英文摘要：

According to the control requirements of the wasted plastics refining plant,this system adopts the SIEMENS S7-200 PLC and the monitor and control generated system（MCGS） software in order to acquire and display the data of this system in real-time,combined with various kinds of sensors and expanded equipment in the industrial field.With hardware devices and software,it has the ability to realize real-time monitoring and robust controlling.The structure and function of system,especially temperature control system for cracking reaction kettle,will be presented in this paper.And the actual result proved that this system could achieve the design target splendidly.