..图书分类号:密级:毕业设计(论文)基于PLC的邮件分拣机控制系统设计MAILSORTINGMACHINEBASEDONPLCCONTROLSYSTEMDESIGN学生姓名学院名称信电工程学号班级专业名称电气工程及其自动化指导教师2014年5月23日..徐州工程学院学位论文原创性声明本人郑重声明:所呈交的学位论文,是本人在导师的指导下,独立进行研究工作所取得的成果。除文中已经注明引用或参考的内容外,本论文不含任何其他个人或集体已经发表或撰写过的作品或成果。对本文的研究做出重要贡献的个人和集体,均已在文中以明确方式标注。本人完全意识到本声明的法律结果由本人承担。论文作者签名:日期:年月日徐州工程学院学位论文版权协议书本人完全了解徐州工程学院关于收集、保存、使用学位论文的规定,即:本校学生在学习期间所完成的学位论文的知识产权归徐州工程学院所拥有。徐州工程学院有权保留并向国家有关部门或机构送交学位论文的纸本复印件和电子文档拷贝,允许论文被查阅和借阅。徐州工程学院可以公布学位论文的全部或部分内容,可以将本学位论文的全部或部分内容提交至各类数据库进行发布和检索,可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。论文作者签名:导师签名:日期:年月日日期:年月日..摘要本论文利用PLC对分拣系统进行控制设计,摆脱了使用继电器进行分拣的系统,缺乏较好的稳定性,适应性不够强,且不能满足特殊的控制要求等缺陷,实现了对邮件进行自动分拣的主要目标。本论文充分利用了可编程逻辑控制器的优秀性能,设计出了具有运行稳定、故障率低等优势的系统。本论文首先介绍了论文题目的起源及其背景资料、订立的系统实施方案、设计思想和合理性推断;随后对系统开始进行硬件选型、硬件电路设计,软件程序设计,并绘制了梯形图;接下来又对系统进行调试以确定其可行性,然后利用MCGS组态软件对整个系统进行组态仿真;最后,本论文对全部的设计内容和结果进行总结陈述。关键词可编程逻辑控制器(PLC);邮件分拣..AbstractUsingPLCtodesignsortingsystemgetsridofthedefectofusingrelayforsortingsystemlackofstabilityandadaptability,andcannotmeettherequirementofthespecialcontrol.AndPLCsortingsystemrealizesthemaintargetforautomaticsortingmail.ThispapermakesfulluseoftheexcellentperformanceofProgrammableLogicControllertodesignasystemwhichhasadvantagesofstableoperationandlowfailurerate.Thisarticlefirstlyintroducestheoriginandbackgroundofthetopicofthethesis,andthenestablishesasystemimplementationscheme,designideaandrationalityofinference.Secondlythesystemstartshardwareselection,hardwarecircuitdesign,softwareprogramdesign,anddrawstheladderdiagram.Thenthesystemdebuggingiscarriedouttodeterminethefeasibility,andthenthethesisusingtheMCGSconfigurationsoftwaremakesconfigurationsimulationofthewholesystem.Finally,thisarticlesummarizestheresultofthetotaldesigncontentandpresentation.KeywordsProgrammableLogicController(PLC)sortingmail..目录1绪论..............................................................................................................................................11.1选题的研究背景和研究意义...............................................................................................11.2邮件分拣系统的现状与发展趋势.......................................................................................11.3本设计的主要研究内容.......................................................................................................22总体设计方案..............................................................................................................................32.1控制要求分析.......................................................................................................................32.2可编程逻辑控制器(PLC)介绍.......................................................................................32.2.1PLC的硬件构成...........................................................................................................32.2.2PLC的特点...................................................................................................................42.2.3控制系统的PLC工作流程..........................................................................................53系统硬件设计..............................................................................................................................63.1PLC控制系统设计的基本原则..........................................................................................63.2PLC控制系统设计的一般步骤..........................................................................................63.3元件选择及电器功能说明...................................................................................................73.3.1系统元件总览................................................................................................................73.3.2PLC的选型...................................................................................................................83.3.3驱动元件的选择............................................................................................................83.3.4传感器的选择................................................................................................................93.3.5条形码扫描器..............................................................................................................103.3.6拨码器..........................................................................................................................103.3.7其他元器件选择..........................................................................................................103.4邮件分拣系统的主电路图.................................................................................................113.5PLC的硬件接线图............................................................................................................123.6I/O地址分配......................................................................................................................124邮件分拣系统的程序设计........................................................................................................144.1PLC编程软件....................................................................................................................144.1.1编程语言....................................................................................