文档介绍：plc 触摸屏控制的 PLC 变频调速设计.. 本科毕业论文(设计) 题目触摸屏控制的 PLC 变频调速设计学院专业年级学号姓名指导教师成绩年月日目录摘要·········································1 关键词········································1 Abstract ·······································1 Key words ······································21 可行性分析·····································32 需求分析······································43 控制要求······································44 选型依据······································55 总体设计······································5 控制系统硬件设计······························5 模块功能···································6 可编程控制模块·······························6 . 2 可编程控制器的工作方式···············