自动化专业英语03.docx

自动化专业英语03

第一篇：自动化专业英语03PLC简称为可编程控制器PLCprogrammablecontrollerforshortPLC开始应用于工业控制是在20世纪60年代PLCbegantoapplicationinindustrialcontrolisinthe1960sPLC的特点有PLCcharacteristic编程简单，可以现场修改程序，易于掌握Simpleprogrammingandcanspotmodifytheprogramandeasytocatch维护方便Maintenanceconvenient可靠性高，抗干扰性强Highreliabilityandanti-interferenceisstrong体积小，重量轻，功耗低Smallvolume,lightweight,lowpowerconsumption功能强，通用性好Strongfunction,excellentversatilityPLC可以分为以下几类PLCcanbeclassifiedintothefollowingcategories整体式PLC和模块式PLCIntegralPLCandmoduletypePLCPLC的作用PLCrole用于开关逻辑控制，定时、计数控制Switchinglogiccontrol,timing,countingcontrol用于闭环过程控制，数据处理，数字控制Usedinclosedloopofprocesscontrol,dataprocessing,digitalcontrol随着应用领域的日益扩大，PLC技术及其产品仍在继续扩展Asthefieldsofapplication,PLCtechnologyanditsgrowingproductstillcontinuestoexpand其机构不断改进，功能日益增强，其性价比越来越高Itsinstitutionscontinuetoimprove,thefunction,theratioofgrowingincreasinglyhighPLC的组成PLCcomposition中央处理单元Thecentralprocessingunit存储器memory输入、输出单元Inputandoutputunit单元电源UnitpowerPLCprogrammablecontrollerforshort,Begantoapplicationinindustrialcontrolisinthe1960s.ThecharacteristicofPLC,Simpleprogrammingandcanspotmodifytheprogramandeasytocatch,maintenanceconvenient.Highreliabilityandanti-interferenceisstrong.Smallvolume,lightweight,lowpowerconsumption.PLCcanbeclassifiedintothefollowingcategories.PLCIntegralPLCandmoduletypePLC.PLCrole,Switchinglogiccontrol,timing,countingcontrol.Usedinclosedloopofprocesscontrol,dataprocessing,digitalcontrol.Asthefieldsofapplication,PLCtechnologyanditsgrowingproductstillcontinuestoexpand.Itsinstitutionscontinuetoimprove,thefunction,theratioofgrowingincreasinglyhigh.PLCcomposition,thecentralprocessingunit,memory,inputandoutputunit,unitpower.第二篇：自动化专业英语1)theparameterizationofthe0controller0isC=X+MQ/Y-NQ。whereN,MarerightcoprimefactorsofP,X,YsatisfyNX+MY=1,Q∈RH∞2)AccordingtotherightcoprimefactorizationofP,N=,M=,X=,Y=Bytheperformanceoftheclosed-loopsystemN(0)[X(0)+M(0)Q(0)]=1N(10j)[Y(10j)-N(10j)Q(10j)]=0，SotakeQintheformQ(s)=x1+x2·1/s+1+x3·1/(x+1)²wecangetthesolutio