精品毕业设计自动售货机可编程序控制器设计（PLC）.docVIP

毕业设计报告 自动售货机可编程序控制器设计 题 目： 自动售货机的PLC设计 学生姓名： 学号： 院（系）： 专业： 入学时间： 年 月 导师姓名： 职称/学位： 导师所在单位： 毕业论文（设计）提交时间：二○ ○七 年 六 月 目录 一、引言··································································1 二、控制要求······························································2 三、设计任务······························································2 四、系统总体方案设计方案 4.1 系统硬件配置及组成原理··············································3 4.2 系统变量定义及分配表·················································3 4.3 系统接线图设计·······················································4 4.4系统可靠性设计························································4 五、控制系统设计 5.1 控制程序流程图设计····················································5 5.2 控制程序时序图设计····················································6 5.3 控制程序设计思路······················································7 5.4 编程系统的调试························································7 5.5创新设计内容···························································7 六、上位监控系统设计 6.1 PLC与上位监控软件通讯················································8 6.2 上位监控系统组态设计··················································8 6.3 实现的效果····························································12 七、系统调试及结果分析 7.1 系统调试及解决的问题··················································12 7.2 结果分析······························································13 八、结束语·································································13 九、参 考 文 献····························································14 十、附录···································································14一：引言 可编程序控制器（Programmable Logic Controller ）简称PLC, 是一种以微处理器为核心的用于工程自动控制的工业控制机，其本质是一台工业控制专用计算机。它的软、硬件配置与计算机极为类似，只不过它比一般计算机具有更强的与工业过程相连接的接口和更直接的适应于控制要求的编程语言。硬件主要由中央处理单元CPU、存贮器、输入/输出单元以及编程器、电源和智能输入/输出单元等构成.PLC是一种专为在工业环境应用而设计的数字运算电子系统，它是以微处理机为基础，综合了计算机技术、自动控制技术和通信技术等现代科技而发展起来的一种新型工业自动控制装置，是当今工业发达国家自动控制的标准设备之一。 自动售货机是集声、光、机、电于一体的智能科技产物,进入21世纪，自动售货机也将进一步向节省资源和能源以及高功能化的方向发