下载后可任意编辑基于 PLC 的 PID 多点温度的控制的系统摘要:本设计阐述了利用西门子 S7-300 PLC 扩展模拟量采集模块 SM331 和模拟量输出模块 SM332 通过 PID 闭环控制四点温度的智能控制系统
运用梯形图编写下位 PLC 程序,并用上位组态软件(组态王)设置参数,实现对加热系统的自动调节及对温度的保持
本系统的有用性很强,稳定性、精确度良好,程序开发容易,可以适应农业或工业生产中恒温系统的需求
Abstract: This design describes the use of Siemens S7-300PLC extended analog acquisition module and the analog output module of SM331SM332via PID closed-loop control to four point temperature intelligent control system
Application of ladder diagram to prepare lower PLC program, and the configuration software ( King ) set parameters, to achieve the automatic adjustment of heating system and temperature keeping
This system is very practical, good stability, accuracy, easy to program development, agricultural or industrial production thermostat system requirements
关键词:PLC 组态王 PID 控