基于PLC的锅炉内胆水温控制系统采用PLC作为控制系统的核心，使用西门予公司的S7-300系列PLC编程软件中的PID功能块来实现控制算法，通过和计算机的通信实现数据的自动处理和操作的远程控制。监控画面采用西门子公司的Wincc组态软件来制作，从而实现对KP、TI、TD三个参数的在线修改，以及实时监视被控对象的运行状态-PLC-based TANK boiler water temperature control system PLC control system as the core, Simon used to the S7-300 Series PLC programming software PID function blocks to achieve control algorithm, through the communications and computer data processing and the automatic operation of the remote control. Monitor screen Siemens company Wincc configuration software to produce, thus realizing the KP, TI, TD parameters of the three-line changes and real-time monitoring of the operation of the plant state