摘要
根据新疆独山子某小型化工厂氯化聚乙烯生产工艺流程和控制要求,从系统硬件组态和软件设计2方面探讨了S7-300型PLC在聚乙烯氯化过程中的应用。在设计中,PLC充当温度控制器,变频器作为压力控制器构成2个独立的闭环系统进行自动调节;利用Kingview组态软件实现上位机监控,模拟现场画面,显示所需监控的现场设备。经过运行显示,该系统调节准确,稳定了釜内温度,同时节约了设备投资。
According to the process and control requirements of CPE in some chemical mill,this paper discussed the application of Simatic S7-300 PLC from hardware and software.In design,as the temperature and pressure controlers,PLC and frequency converter and other elements form two independent close-loop systems.And adopted the Kingview configuration software to simulate field state,and display the menus of watched equipments.By operating,the system regulates accurately,temperature of the reactor stable,and saves the investement of the equipment.
出处
《工业仪表与自动化装置》
2010年第4期56-58,112,共4页
Industrial Instrumentation & Automation
基金
新疆维吾尔自治区高校科研计划青年教师培育基金项目(XJEDU2009S11009)
