PLC-自动配料系统外文资料

PLCautomaticbatchingandweighingsystemdesignTherearemanykindsofPLCdefinition.Theinternationalcommission(IEC)isdefinedasofPLCprogrammablecontrollerisakindofdigitalcomputingoperations,speciallydesignedfortheelectronicsysteminindustrialenvironmentapplicationanddesign.ItUSESprogrammableQi,usedinitsinternalstoragetoperformthelogicoperation,sequencecontrol,timing,countingandarithmeticoperationinstruction,andthroughdigital,analoginputandoutput,thecontrolvarioustypesorproductionprocess.Programmablecontrollerandrelatedequipment,shouldpresseasyandindustrialcontrolsystemasawhole,easytoextenditsfunctionprincipledesign.PLCwithcommunicationnetworkingfunction,itmakesPLCandPLC,betweenthePLCandthePCandotherintelligentequipmenttoexchangeinformationbetween,formingaunifiedwhole,realizescatteredcentralizedcontrol.MostPLChasRS-232interface,andsomebuilt-inhavetosupporttheircommunicationprotocolinterfaces.Ingredientsworkersreceivedailyproductionscheduling,willinturnforeachfeedstock.Accordingtohowmuchweighingingredients,firstcalculatedtheweightofeachcomponentinvariouscomponents,andthenthematerialbarrelsmaterialtaking,toelectronicsaysonthepackagingweighingAlongwiththedevelopmentofscienceandtechnology,Automaticbatchingandweighingsystemhasbeenwidelyusedinmetallurgy,coal,chemicals,buildingmaterialindustry,etc.Automaticbatchingandweighingsystemcanbesetaccordingtotheinputratioandflowcontrolofmaterialflow,therebyachievecontrolofproductqualityandyieldoftheobjectiveistorealizetheautomaticproductionprocess,andintelligent,enterprise'sscientificmanagement,safeandstableproductionandenergyconsumptionistheimportanttechnicalmeans.Computercontrolsystemintheproductionofingredientsusednotonlycanimprovetheyieldandqualityingredientsandgreatlyreducethelaborintensity,andposttoimproveproductionefficiency.Theauto-dispensationsystempermanentflowcontrolusesthePIDadjustment，thecurrentcapacitymeasurementcontrolismeasuresthedeviationandthefrequencyconversionvelocitymodulationunion.Introducestheflow-controlmodeandcontrolprocessofthesystembasedonthesystemsmanufacturingprocessoftheallocation.ThisessayalsoillustratesthehardwaresettingandsoftwaredesigningofPLCselection,frequencyconversioncontrolofallocationsystemindetail.Ingredientsworkerreceivesdailyproductionoperationsthetable,itwillturnforeachrawmaterialweighing｡accordingtothenumberofingredients,firstcalculatetheweightofeachingredient,andthenthedrumsinavarietyofcomponentsinthereclaimerandsente-saidweighingonthefinalpackaged｡Inthisprocess,theheavyworkloadoftheworkers,thehigherrorrate,weighingtheweightofnomonitoring,norecordsofproductiondatacannotguaranteetheproductionprocess｡papertoPC,programming,programmablelogiccontroldevice(PLC),fieldbustechnologyandothermodernindustrialcontroltechnology,developedbyPC,asthehostcomputertoPLCasthenext-bitmachine'sautomaticbatchingsystem｡throughouttheproductionprocess,oncetheproductionplanworkedout,thecomputerwillfollowplanforeachweighingrawmaterials,eliminatingtheneedformanualintervention｡Inthisprocess,theworkersjusttogetmaterial,bythecomputerthatsenttheelectronicdatacheckingweight,reducetheworkloadofworkerstoimproveworkefficiencyAutomaticbatchingandweighingsystemisakindofintegratingtransportation,measuring,mixinginanonlineautomaticweighingapparatusmeasureddynamic.Thissystemconsistsofoneormoreingredientsbeltscales,canshownotonlytransientflowandtotalamountofconveyorbelt,canalsoaccordingtothevalueoftheinstantaneousflowdeviationtoadjusttothesizeofthefeedtoflow,constituteaclosersettingcontrolsystem,andachieveconstantflowofpurpose.Alongwiththerapiddevelopmentofindustrialproduction,electronicbeltscaleincreasingdemandofburdeningsystem,waswidelyappliedinapanofmetallurgy,power,chemicalindustry,foodindustryetcofprocesscontrol.Atthesametime,alongwiththecomputertechnologyandtherapiddevelopmentoftheautomaticcontroltechnology,thesystemapplicationtechnologymoreadvanced,moreextensive,fieldcantaketheschemeismoreagilediversity,and,duetothesystemoftencostly,usersoftheactualconditionsarealsodifferent.Therefore,careful,chooseareasonable,perfect,economicsolutionappearsespeciallyimportantAlongwiththeenterprisescaleexpansionanddevelopment,automaticbatchingcontrolsystemhasundergoneconsiderabledevelopmentBatchingproductionsystemisasysteminwhichavarietyofrawmaterialsaccordingtoacertainproportionaremixedtogether,forprocessingtoproduceaproductoftheprocessAmongthem,theingredientsareindispensableintheproductionofkeyingredients,accurateproductqualityhasimportantinfluenceWiththedevelopmentofinformationtechnologyandthedevelopmentofautomaticcontroltechnology,anewgenerationofbatchingcontrolsystemwilltowardsinformationandintellectualization.Inthispaperaprogrammablecontroller(PLC)asthecoreoftheautomaticbatchingcontrolsystem,completewithahighercost,theapplicationofautomaticblendingcontrolsystemPLCbecauseofitspowerful,easytouse,highreliability,isoftenusedasthefielddatagatheringandtheequipmentcontrol.Inthispaper,automaticbatchingsystemdevelopmentpresentsituation,applicationprospectsarediscussedinthispaper,thetraditionali