摘要
介绍了以三容水箱、小型锅炉和板式换热器为被控对象,SIMATIC S7-200 PLC为控制器,装有组态王监控系统的上位机构成的过程控制综合实验平台。上位机通过PC/PPI电缆与下位机PLC通信,实时检测被控对象的液位、温度、压力、流量四个参数,经过数据处理和PID运算,运算结果输出送至执行器,执行器为电动调节阀和变频器。实践教学证明,该实验平台充分模拟工业控制现场,人机界面友好,实验效果良好,可完成多种过程控制实验。
The process control synthetic experimental platform is introduced.The three-tank, dwarf boiler and plate heat exchanger are as the controlled object.The SAMATIC S7-200 PLC is as the controller.The configuration king monitoring system is in the upper computer, which communicates with down computer PI,C with PC/PPI cable.The level, temperature, pressure and flow are detected in real time. After data processing and PID calculating, the results are outputted to actuators, which are electric control value and frequency convertor. Practical educating shows that the experimental platform can fully simulate industry control field.The man-machine interface is friendly and the experiment effect is goad.The platfurm can finish a variety of process control experiments.
出处
《科技创新导报》
2013年第2期180-181,共2页
Science and Technology Innovation Herald
基金
防灾科技学院科研项目2012B02
