PLC课程设计-三层电梯VIP专享VIP免费

课程设计报告题目三层电梯控制课程名称PLC工业控制及应用院部名称机电工程学院专业电气工程及其自动化班级10电气1班学生姓名管志成学号1004103027课程设计地点C314课程设计学时20指导教师金陵科技学院教务处制摘要可编程控制器作为一种工业控制微型计算机，它以其编程方便、操作简单尤其是它的高可控性等优点，在工业生产过程中得到了广泛的应用。它应用大规模集成电路，微型机技术和通讯技术的发展成果，逐步形成了具有多种优点和微型中型，大型，超大型等各种规格的系列产品，应用于从继电器控制系统到监控计算机之间的许多控制领域。PLC总的发展趋势是：高功能、高速度、高集成度、大容量、小体积、低成本、通信组网能力强。本课程设计基于西门子（SIEMENS）S7-200PLC对三层电梯的控制进行了模拟，形成了电梯升降的系统PLC在电梯升降的过程中，主要体现在逻辑开关的功能。由于PLC具有逻辑运算、记数、定时以及输出输入输出的功能，在电梯升降的过程中各种逻辑开关控制与PLC很好的结合，对电梯实现了控制。关键词：SIEMENSS7-200PLC；电梯；升降目录一、绪论1.1相关背景知识··············································31.2课程设计的目的············································31.3课程设计的要求············································31.4课程设计的任务············································4二、电梯控制系统硬件设计2.1模拟装置介绍··············································52.2选择机型··················································62.3I/O分配表················································62.4电气接线图与主电路图······································62.5电梯控制系统的安全保护2.5.1短路保护··············································72.5.2过载保护··············································72.5.3失电压保护············································72.5.4超程保护··············································7三、电梯控制系统软件设计3.1软件设计流程图及描述·······································83.2源代码设计3.2.1梯形图LAD············································93.2.2语句表STL···········································143.3系统调试··················································16四、课程设计体会················································16五、参考文献····················································16一、绪论1.1相关背景知识随着城市建设的不断发展，高层建筑不断增多，电梯在国民经济和生活中有着广泛的应用。电梯作为高层建筑中垂直运行的交通工具已与人们的日常生活密不可分。在许多交通设备中，电梯是自动化程度最高的先进设备的一种。以前的电梯主要采用单片机控制，其性能等各方面都不太完善，现在电梯控制系统多采用PLC，从电梯的性能、器件的灵活性及安全保障方面等都有了很大的提高。实际上电梯是根据外部呼叫信号以及自身控制规律等运行的，而...