学号： 0.......基于 PLC 的交通灯控制电路设计专业名称： 电子信息工程 年级班别： 2024 级 1 班 姓 名： xxx 指导老师： xxx 2024 年 5 月Xxxx本科毕业论文目 录摘要.........................................................................II关键词.......................................................................IIAbstract.....................................................................IIIKeywords...................................................................III前言..........................................................................11 PLC 的进展背景及其原理概述...................................................21.1 PLC 概述.............................................................21.2 梯形图工作原理......................................................21.3 梯形图编辑说明.......................................................42 用 PLC 实现智能交通灯控制....................................................62.1 控制系统的组成.......................................................62.2 硬件配置.............................................................72.3 交通灯的控制过程.....................................................72.4 PLC 的选型...........................................................92.5 车流量的计量........................................................102.6 流程分析............................................................113 模块选择...................................................................113.1 扩展模块的选择......................................................113.2 EM222 的端子连线图..................................................123.3 扩展模块与主机的连接形式............................................123.4 I/O 分配............................................................12结论.........................................................................14参考文献.....................................................................15致谢.................................................
