基于三菱PLC的物料自动识别缓冲系统

目录摘要..................................................................................................................................................1ABSTRACT......................................................................................................................................2第一章绪论..................................................................................................................................41.1物料自动识别缓冲系统及PLC的发展状况...................................................................41.2课题的来源以及内容.....................................................................................................6第二章三菱PLC的结构和网络.................................................................................................82.1PLC的结构及基本配置.................................................................................................82.2PLC的通信联网...........................................................................................................10第三章PLC基本指令系统与指令............................................................................................143.1PLC指令系统...............................................................................................................143.2基本指令........................................................................................................................14第四章物料自动识别缓冲系统构成.........................................................................................184.1硬件结构........................................................................................................................184.2物料自动识别缓冲系统工作流程................................................................................19第五章程序的编写.....................................................................................................................21第六章程序的调试.....................................................................................................................23第七章总结................................................................................................................................247.1全文总结........................................................................................................................247.2心得体会........................................................................................................................24第八章致谢................................................................................................................................25参考文献........................................................................................................................................26附录................................................................................................................................................28物料识别缓冲系统程序.........................................................................................................281基于三菱PLC的物料自动识别缓冲系统摘要随着社会的不断进步和科技的不断发展，各个争产企业面对越来越激烈的市场竞争，使得他们都迫切的需要改进生产技术，尤其是在需要对物料的识别存储的企业，以往采用人工识别分拣的方法，致使生产效率大大降低，且生产成本大幅上涨，这些不利因素都使得企业的市场竞争力低下，于是物料的制动识别存储成为企业唯一选择。对这一问题，可利用PLC技术实现对物料的自动识别、分拣入库。这一方法大大降低了生产成本并且减少人工出错，提高了生产效率。PLC控制是目前工业上最常用的自动控制方法，控制方便，能够在恶劣环境下工作，这使得在工业上优于单片机控制。PLC将传统的继电器控制技术、计算机技术和通信技术巧妙的融合为一体，专为工业控制而设计，具有功能强、通用灵活、可靠性高、环境适应性强、编程简单、使用方便且体积小、重量轻、能耗低等一系列优点，因此在工业生产上的应用也越来越广泛。本文主要讲述PLC在物料自动识别缓冲系统中的应用，以PLC为主体控制器，结合传感器技术、位置控制等技术和气动装置，实现产品的自动识别、缓冲存储。系统具有自动化程度高、精度高、易于控制、运行稳定等特点。由于具体生产要求的不同，编写的程序之间有着很大的区别，而自动识别缓冲系统的I/O节点很多，要考虑的各个点之间、各个功能之间的相互影响和有可能发生的矛盾，所以在程序的编制上就尽量省去了一些功能，尽可能的表现出PLC物料自动识别缓冲系统代表性的功能：就是要让它有最基本的传送带传送、传感器的自动识别、气动手入库缓冲存储、货料的取出的功能。关键词：PLC系统自动识别入库缓冲存储2ABSTRACTTheemergenceoftheautomatedwarehouseisanepoch-makinginnovationinlogisticstechnology.Itisnotonlyrevolutionizedthestorageindustryislabor-intensive,inefficientandbackwardness,butalsogreatlyexpandthewarehouse,fromthesimpletypeofcustodytothedevelopmentofintegratedflow-direction.Automatedwarehouseistopshelfstorageofgoods,cargotolanewaycraneaccess,andthroughthesurroundingmaterialhandlingequipment,automaticaccessAccesswarehousejob.Programmablecontrollertoitsconvenient,simple,andpracticalfeatures,haswonthefavorofthemajorityofmanufacturers.PLCpowerful,lowcost,andthusinthemanagementoftheautomatedwarehouse,manymanufacturersintroducedinsteadofthetraditionalPLCcontrolsystem.PLCcontrolisthemostcommonlyusedindustrialautomaticcontrol,easytocontrol,andbeabletoworkinharshenvironments,whichmakesitbetterthanthesingle-chipcontrolintheindustry.PLCtraditionalrelaycontroltechnology,cleverfusionofcomputertechnologyandcommunicationtechnologyasawhole,specificallydesignedforindustrialcontrol,withstrongfeaturesandaflexible,general-purpose,highreliability,environmentaladaptability,programmingissimple,easytousevolume,lightweight,lowenergyconsumptionandaseriesofadvantages,moreandmorewidelyinindustrialproduction.ThispaperdescribesthePLCinmaterialautomaticallyidentifythebuffersystem,PLCasthemaincontroller,combinedwithsensortechnology,positioncontrolandpneumaticdevices,automaticidentificationoftheproduct,thebufferstorage.Thesystemhasahighdegreeofautomation,highp