twincat3入门培训课件tc3 iec一个变量名包含了数据类型

Trainingfornewusers|IEC61131-33rdTwinCATTraining: TwinCATTraining: TwinCATTraining:例如逻辑运算关键字ANDOR数据类型关键字BOOLINT类型和结构定义关键字TYPE块或程序的关键字FUNCTION,FUNCTION_BLOCK,TwinCATTraining:P TwinCATTraining:P TwinCATTraining:08n016n0429496732nTwinCATTraining:8n08n16n016n-2147483214748332n0429496732n64n064nTwinCATTraining: oginput-10…+10

Inputsignal= 10V

5 0 -5 -10 TwinCATTraining:-+INT-INTINT--+INT-INTINT-INTINT100000000000 TwinCATTraining:4f8fTwinCATTraining: Stringin 80 code.length80um255.Stringsare

StringlengthResultResultsVar:3sVar:=213TwinCATTraining:$<2HexASCIILineNewTwinCATTraining:PosPosPosPosTwinCATTraining:StringinUnicodeLevel0,Block“Training,LevelBlock0x0000-BasicTwinCATTraining:323232TwinCATTraining:Variable10 dh ms TwinCATTraining:(*开始,*结束,可以放在程序中除字符串当中的任何地方(*ThebStartAT%IX0.0bStartAT%IX0.0:BOOL;//SingleTwinCATTraining:.

DataTwinCATTraining:X.BWDStrWordAT%MW10:TwinCATTraining:

TwinCATTraining:ProjectPROGRAMAPROGRAMA

组合进行. LD中的 LDTwinCATTraining: Project TwinCATTraining:断电保持变量: 的变量在PLC关机时会保存其数值,在 Meldungstext:Stueckzaehler:TwinCATTraining:断电保持型变量:可以通过功能块对PERSISTENT型变量进行写操作注意:TwinCATTraining:AccelerationTime:TIME:=只读

AlsoAlsolocally;

常量TwinCATTraining:自定义类型以TYPEEND_TYPE结束ParentParentInitialDataNewInitialInitialDataTwinCATTraining:TwinCATTraining:TwinCATTraining:Example:KL5101 端子 结构体是自定义类型据.并且结构体方便封装数据传送到功能TwinCATTraining:声枚举变量.枚举变 以关键字TYPE开始以关键字END_TYPE结TYPE<Bezeichner>:(<Enum_0>,<Enum_1>,...,<Enum_n>);TYPEenmu1:(Mo,Di,Mi,Dn,Fr,Sa,So:=10);(*Mo=0Di=..Sa=6So=TYPEenmu2:(Up,Dn);(*Up=0Dn=1*)TwinCATTraining:TwinCATTraining:TwinCATTraining: 以关键字TYPEEND_TYPE结束

TwinCATTraining:TwinCATTraining:TwinCATTraining:可以可以好.地址TwinCATTraining:数组表示一系列,或者一个区域的数据.在数组中所有元素都是同一种类型.IEC支持一维,二维,三维数组Feld_1:ARRAY[0..9]OFFeld_2:ARRAY[0..9,0..1]OFUINT; Feld_3:ARRAY[0..9,0..1,0..1]OF 使用者可以直接定义数组的内存地址Feld_1[2]:=120;(*ExpliziterFeld_2[i,j]:=EXPT(i,j);(*Indizierter

TwinCATTraining:Feld_1:ARRAY[1..10]OFBYTE;Feld_2:ARRAY[1..10,2..5]OFUINT;i:=9Feld_1[i+2]:= TwinCATTraining:

FUNCTIONCheckBounds:DINTI,L,U:DINT;

ErrorError“OK”

IFI<LCheckBounds:=L;ELSIFI>UTHENCheckBounds:=CheckBounds:=TwinCATTraining:填加CheckBounds填加CheckBounds(FUN)TwinCATTraining:填加CheckBoundsTwinCATTraining:checkerTwinCAT3:TwinCATTraining:在IEC61131-3的POU(PROGRAMORGANISATIONUNIT)包含了三种类型的块FunctionTwinCATTraining:块类型programProgram可以调用:FBsfunctions局部变量静态即局部变量的数据可以在下个周期使用输出默认是没有输出的变量的在VAR_OUTPUT是可以 TwinCATTraining:块类型functionblockFunctionblock可以调用FBs局部变量静态,即局部变量数据可以在下个运行周期使用.输入:输出:0,1,2,3.输入输出:0,1,2,3. TwinCATTraining:块类型Function:Function:可以调用:局部变量临时的即局部变量数据仅在当前function执行时可以使用.之后这个数据区就被用于其它内容.输入: 输出:只有1个 状态下仅能看到“???”.使用断点TwinCATTraining:ST:IF::IFConditionInstructionblock;ELSIFConditionTHENInstructionInstructionTwinCATTraining:ST:IFIFa>bIFa>bInstructionblockA;InstructionblockB;InstructionblockInstructionblockTwinCATTraining:ST:IFIFCondition1THENInstructionblockA;IFCondition2THENInstructionblockB;IFCondition3THENInstructionblockC;InstructionblockD;

blockB

blockC

blockDTwinCATTraining:ST:IFIFCondition1THENInstructionblockA;ELSIFCondition2THENInstructionblockB;ELSIFCondition3THENInstructionblockC;InstructionblockD;

blockA

blockB

block

blockDTwinCATTraining:ST:IF仅功能块调

IFbVar.IFa>b. LEFT(STR:=strVar,SIZE:=7)='TwinCAT'.IFTon1.Q.TwinCATTraining:STCASE Instruction2,4,6:Instruction Instruction

criterion=1

Selectioncriterion=2or4or6Selectioncriterion=7or8or9or10?

Instruction3 TwinCATTraining:CASEState InstructionsfortheIFTransitionTHENstate:=1;IFTransitionTHENstate:=2;IFTransitionTHENstate:=3;IFTransitionTHENstate:=0;TwinCATTraining:CASEStateCASEStateIF……THENifstate=3ifstate=2ifstate=1ifstate=0TwinCATTraining:ST:CASEinstruction“IntegerSelectorValue”withEnumtypesTYPESchritteTYPESchritte

TwinCATTraining:ST:CASEinstruction:suggestionforastepchain/statemachineTYPESchritte(INIT:=0,START,AUTOMATIK,ENDE);CASEStateInstructionsfortheIFTransitionTHENstate:=START; IFTransitionTHENstate:=AUTOMATIK;END_IFAUTOMATIK:Q2:=TRUE;Step IFTransitionTHENstate:=ENDE; IFTransitionTHENstate:=INIT;TwinCATTraining:ST:CASEinstruction“IntegerSelectorValue”withconstantsStep1:Step1:INT:=Step2:INT:=Step3:INT:=Step4:

Instructions;(*State=2oderTwinCATTraining:ncyclefollowconditionfollowconditionTwinCATTraining:ST:FOR执行后判断i是否达到关键字TOFORi:=1TO12BY2

CycleStartiStartiInstructioni:=i+stepTwinCATTraining:CycleInstructionblocki:=i+stepWHILEi<100CycleTwinCATTraining:

Instructioni:=Instructioni:=i+stepUNTILi>100

CycleTwinCATTraining:ST:FBcallsinTON1(IN:=TON1(IN:=NOTTON1.Q,PT:=T#1sQ0:=TON1(IN:=NOTTON1.Q,PT:=T