毕业设计（论文）报告题目基于PLC的步进电机的控制基于PLC的步进电机的控制基于PLC的步进电机的控制摘要:小型PLC在编程，I/O扩展，通讯接口，开关量和模拟量的调节以及一些特殊功能模块如高速计数输入和脉冲输出的应用上已经基本满足用户的需求了。但随着应用需求及关联产品技术性能的提升，PLC将继续得已完善和发展。本文主要论述了步进电机的原理及驱动方法，并在S7-200PLC的基础上，对步进电机进行控制。本设计选用PLC控制两相混合式步进电机，在PLC编程的基础上用按钮开关控制步进电机的启动、正转、反转等基本功能。关键词：S7-200PLC、两相混合式步进电机、PLC编程i基于PLC的步进电机的控制ControlofsteppingmotorbasedonPLCAbstract:Inthefieldofprogramming,I/Oexpansion,Communicationinterface,adjustmentsofswitchesandsimulationandsomespecialfunctionmodulessuchastheapplicationofhighspeedpulseinputandoutput,thePLChasalreadymetdemandsofusers.ButthePLCwillcontinuetoimproveanddevelop,asthedevelopmentofapplicationrequirementsandrelatedtechnicalperformance.Thisarticlechieflydiscussestheprincipleanddrivenapproachofthesteppingmotor,andhowtocontrolitbasedontheS7-200PLC.ThearticleisabouthowthePLCcontrollingthetwo-phasehybridsteppingmotor.Withtheswitchbutton,itcanfunctionas:start,positiverotation，inversion.Keywords:S7-200PLC.two-phasehybridsteppingmotor,PLCprogramming.ii基于PLC的步进电机的控制目录第一章绪论............................................................................................11.1概述.........................................................................................................11.2S7-200PLC国内外现状和发展趋势............................21.3论文的主要研究工作........................................................3第二章西门子S7-200PLC................................................................42.1PLC的产生...........................................................................................42.2PLC的特点.......................................................................................42.2.1编程方法简单易学....................................................42.2.2硬件配套齐全，用户使用方便.................52.2.3通用性强，适应性强.............................................52.2.4可靠性高，抗干扰能力强...............................52.2.5系统的设计、安装、调试工作量少...52.2.6维修工作量小，维修方便...............................52.2.7体积小，能耗低...........................................................52.3PLC的系统构成.........................................................................62.3.1主机..............................................................................................62.3.2I/O扩展机................................................................................62.3.3外部设备................................................................................72.4高速脉冲输出功能...............................................................72.4.1用于脉冲输出（Q0.0或Q0.1）的特殊存储器.........................................................................................................72.4.2PTO的使用................................................................................92.5PLC的选择....................................................................................102.5.1CPU224..................................................................................................102.5.2工作方式.....................................................................
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