基于PLC与机器视觉的生产线系统

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中图分类号：TP391 文献标志码：B doi：10.20214/.cnki.zhdt.2025.01.01

ProductionLineBasedonPLCandMachineVision

CAIZhendong

（ChinaRailwa GuanzhouGrou Co.，Ltd.，Guanzhou5108 ，China）

Abstract：Theconceptsof“inteligentfactory”and“inteligentproduction”areleadingthetransformation ofthetraditional manufacturingindustryintoa high-end，standardized andinteligentdirection.The conventional manufacturing industry frequently encounters chalenges such as low per capita labor productivity，inadequateproductuniformity，andinadequatematerialcontrol，renderingitincapableofmeting customers’demandsforhighqualityanduniformityofproducts.Inthispaper，TIAPortalV16enginering designprogrammingplatformisusedtocompletethecontroloftheasemblyline，distributedIO moduleis usedtorealizetheacquisitionofinputsignals，andSiemensS7-120 PLC，AB industrialrobotandindustrial cameraarecombinedintoacompleteindustrialcontrolsystembyProfinetcommunicationnetwork，which greatlyshortensthesystemdesigncycle，improvesthesystemstabilityandreducesthesystem maintenance cost.TheOPCUAprotocolisusedtodockwiththeSCADAsystemfortherealizationoforderisuance，material verification，andfinishedproductreporting，therebyfacilitatingthemanagementandcontrolofmaterialsandfinished products.Thissystemadoptsthemodeofasemblyline，whichgreatlysavesthelaborcost，realizesthepaperles inputandcontrolofmaterials，andboaststheadvantagesofshortdevelopmentcycle，highsystemstabilityandstrong productuniformity.

Keywords：OPCUAprotocol;programmablelogiccontroler;RFIDreader;FBfunctionblock;central controlsystem;SCADAsystem

1 系统概述

可编程逻辑控制器在自动化产线上的应用较为广泛，西门子可编程逻辑控制器具有以下优点[1]：

（1）抗干扰能力强，可靠性高;

（2）程序简单易学，系统设计周期短;

（3）模块化的设计，易于扩展。（剩余6670字）