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看了這個PLC游戲闖關，我已口吐白沫，再也不敢吹牛說很懂PLC了
發布者：admin   發布日期：2017-10-23

PLC游戲來了！猜猜它是干什么的？

FUNCTION_BLOCK FB01


VAR_INPUT

PositionDB : INT;

ForceDB : INT;

AnalysisMode : INT;

NumPointsAverage : INT;

ServoPosOffest : REAL;

LgDiaForceDelta : REAL;

SmDiaForceDelta : REAL;

MinForceExpected : REAL;

PointOffset : INT;

END_VAR


VAR_IN_OUT

DoneGood : BOOL;

DoneFail : BOOL;

END_VAR


VAR_OUTPUT

FinalForce : REAL;

SmDia_StartForce : REAL;

SmDia_StartPosition : REAL;

SmDia_EndForce : REAL;

SmDia_EndPosition : REAL;

LgDia_StartForce : REAL;

LgDia_StartPosition : REAL;

END_VAR


VAR

iInitData:INT:=1;

Seq:STRUCT

   bStart:BOOL;

   bStartEdgeStore:BOOL;

   iStepNo:INT;

END_STRUCT;


temp : BOOL;

PositionDBWord : WORD;

ForceDBWord : WORD;


x : WORD;

y : INT;

z : DWORD;

i : INT;

j : INT;

Count: INT;

Arraycounter: INT;

kk :INT;

L: WORD; // Position

LL: DWORD; // StatForce


PreviousForce :REAL;

FinalPosition :REAL;

NumberOfDataPoints :INT;

CurrentForce :REAL;

CurrentPosition :REAL;

Acc_Real :REAL;

ChangeInPosition :REAL;

ChangeInForce :REAL;

StartIndex :INT;

Zone2StartIndex :INT;

Zone2EndIndex:INT;

SmallDia_Start_Index :INT;

Peak_Force_Temp :REAL;

Current_Force_T :REAL;

Previous_Force_Temp :REAL;

SumArray_Force :REAL;

TransArrayForce :REAL;

StartPosition :REAL;

LgDia_StartForce_Temp : REAL;

LgDia_StartPosition_Temp: REAL;



TransitionForce :ARRAY [1..30] OF REAL;

TransitionPosition :ARRAY [1..30] OF REAL;


END_VAR


LABEL

Fail;

Done;

TopOfCurve;

Scanning;

LgDiaStart;

SmDiaEnd;

SmDiaStart;

TransitionForceCase;


END_LABEL


BEGIN


CASE Seq.iStepNo of


0: //init data


// Code Section

FinalForce := 0.0;

SmDia_StartForce := 0.0;

SmDia_StartPosition := 0.0;

SmDia_EndForce := 0.0;

SmDia_EndPosition := 0.0;

LgDia_StartForce := 0.0;

LgDia_StartPosition := 0.0;


PreviousForce := 0.0;

FinalPosition:= 0.0;

CurrentForce := 0.0;

CurrentPosition := 0.0;

Acc_Real := 0.0;

ChangeInPosition := 0.0;

ChangeInForce := 0.0;


Peak_Force_Temp := 0.0;

Current_Force_T :=0.0;

Previous_Force_Temp:= 0.0;


DoneGood := 0;

DoneFail := 0;

Arraycounter:=1;


//Array Intialization

// TransitionForce[1..30] OF Real: = 30(0);

FOR Count:= 1 TO 30 DO


TransitionForce [Count] :=0;

TransitionPosition [Count] :=0;

END_FOR;


PositionDBWord := INT_TO_WORD(PositionDB);

ForceDBWord := INT_TO_WORD(ForceDB);


//find number of data points

x := WORD_TO_BLOCK_DB(PositionDBWord).DW[2];

NumberOfDataPoints := WORD_TO_INT (x) - 1; //Data Starts at Zero


y := (NumberOfDataPoints * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

Acc_Real := DWORD_TO_REAL (z);


IF NumPointsAverage > NumberOfDataPoints Then

Seq.iStepNo:=99;// Fail;

ELSE

Seq.iStepNo:=Seq.istepNo+1;

END_IF;


//.....................


// Find the final force by taking the average of the

// data points at the end of the curve. The number

// of data points is an input to the FC.


1:


FOR i := (NumberOfDataPoints - 1)TO (NumberOfDataPoints - NumPointsAverage + 1) BY -1 DO

//Add Current Force To Acc_Real

y := (i * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

Acc_Real := Acc_Real + DWORD_TO_REAL (z);


END_FOR;


FinalForce := Acc_Real/NumPointsAverage;


Seq.iStepNo:=Seq.istepNo+1;


//.....................


2:

// LOACTION: TOp of the Curve

// Start scanning from top of the Curve to bottom and


y := (NumberOfDataPoints * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

Previous_Force_Temp:= DWORD_TO_REAL (z);

FOR i := ((NumberOfDataPoints - 1))TO 10 BY-1 DO

//Get Current Force

y := (i * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

Current_Force_T := DWORD_TO_REAL (z);

Peak_Force_Temp:= Current_Force_T;

IF Current_Force_T > Previous_Force_Temp THEN


Peak_Force_Temp:= Current_Force_T;


ELSE


Previous_Force_Temp:= Current_Force_T;


END_IF;

END_FOR;


Seq.iStepNo:=Seq.istepNo+1;


//..............................


3:

// Zone#2= ServoPOS(StartPosition + 5, FinalPosition - Offset Position)



//Get Final Position

y := (NumberOfDataPoints * 4) + 4;

z := WORD_TO_BLOCK_DB(PositionDBWord).DD[y];

FinalPosition := DWORD_TO_REAL (z);


//Get Start Position of the Servo


L:= WORD_TO_BLOCK_DB(PositionDBWord).DW[4];

StartPosition:= DWORD_TO_REAL (L);


LL :=WORD_TO_BLOCK_DB(ForceDBWord).DW[4];

CurrentForce := DWORD_TO_REAL (LL);



FOR i := (NumberOfDataPoints - 1)TO 10 BY -1 DO

//Get Current Position

y := (i * 4) + 4;

z := WORD_TO_BLOCK_DB(PositionDBWord).DD[y];

CurrentPosition := DWORD_TO_REAL (z);

ChangeInPosition := FinalPosition - CurrentPosition;


IF ChangeInPosition > ServoPosOffest THEN

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

PreviousForce := DWORD_TO_REAL (z);

StartIndex := i;

Zone2StartIndex:=i;



Seq.iStepNo:=Seq.istepNo+1;


//..............................




//Location: Start of SmallDia

// SmDia Start Force AND Start Position


FOR j := 1 TO StartIndex BY 1 DO

IF CurrentForce > MinForceExpected THEN

SmDia_StartForce := PreviousForce;

y := ((i+1) * 4) + 4;

z := WORD_TO_BLOCK_DB(PositionDBWord).DD[y];

SmDia_StartPosition := DWORD_TO_REAL (z);

SmallDia_Start_Index:= j;

Seq.iStepNo:=Seq.istepNo+1;


//..............................


ELSE

PreviousForce := CurrentForce;


END_IF;

END_FOR;


//GOTO Scanning;


END_IF;

END_FOR;


Seq.iStepNo:=99; //failt


//..............................


4:


// LOACTION: Start of Large Diameter Press


FOR i := (Zone2StartIndex)TO SmallDia_Start_Index BY -1 DO

//Get Current Force

y := (i * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

CurrentForce := DWORD_TO_REAL (z);

ChangeInForce := PreviousForce - CurrentForce;


IF ChangeInForce < SmDiaForceDelta THEN //<100

SmDia_EndForce := PreviousForce;

y := ((i+1) * 4) + 4;

z := WORD_TO_BLOCK_DB(PositionDBWord).DD[y];

SmDia_EndPosition := DWORD_TO_REAL (z);


StartIndex := i;

Zone2ENDIndex:= i;

Seq.iStepNo:=Seq.istepNo+1;


//..............................


ELSE

PreviousForce := CurrentForce;

END_IF;

END_FOR;

Seq.iStepNo:=99;


//..............................




5:

//Check and Redo


FOR i := (Zone2StartIndex - 1)TO Zone2EndIndex BY -1 DO

//Get Current Force

y := (i * 4) + 4;

z := WORD_TO_BLOCK_DB(ForceDBWord).DD[y];

CurrentForce := DWORD_TO_REAL (z);

ChangeInForce := PreviousForce - CurrentForce;

Seq.iStepNo:=Seq.istepNo+1;



//IF ChangeInForce > 150


IF ChangeInForce > LgDiaForceDelta THEN

LgDia_StartForce := PreviousForce;

y := ((i+1) * 4) + 4;

z := WORD_TO_BLOCK_DB(PositionDBWord).DD[y];

LgDia_StartForce_Temp := PreviousForce;

LgDia_StartPosition_Temp := DWORD_TO_REAL (z);



// The idea is when ever the condition is true I save the valus in the Array

transitionForce[Arraycounter]:= LgDia_StartForce_Temp;

// Problem with Arrays

TransitionPosition[Arraycounter]:= LgDia_StartPosition_Temp;


Arraycounter := Arraycounter+1;



ELSE

PreviousForce := CurrentForce;

END_IF;

END_FOR;


IF Arraycounter =1 THEN


Seq.iStepNo:=99;


//..............................


ELSE

Seq.iStepNo:=Seq.istepNo+1;


//..............................


END_IF;


6:



CASE Arraycounter OF


1 :

LgDia_StartForce := transitionForce[1];

LgDia_StartPosition :=TransitionPosition[1];


1, 2 :

LgDia_StartForce := transitionForce[2];

LgDia_StartPosition :=TransitionPosition[2];


1..5 :


SumArray_Force := transitionForce[2]+transitionForce[3]+transitionForce[4];

LgDia_StartForce := SumArray_Force/3;

LgDia_StartPosition :=TransitionPosition[3];


1..14:


SumArray_Force := transitionForce[3]+transitionForce[4]+transitionForce[5]+transitionForce[6];

LgDia_StartForce := SumArray_Force/4;

LgDia_StartPosition :=TransitionPosition[4];



14..30:

SumArray_Force := transitionForce[4]+transitionForce[5]+transitionForce[6]+transitionForce[7]+transitionForce[8];

LgDia_StartForce := SumArray_Force/5;

LgDia_StartPosition :=TransitionPosition[6];


ELSE


Seq.iStepNo:=99;


//..............................



END_CASE;


Seq.iStepNo:=Seq.istepNo+1;


//..............................


7: DoneGood:=1;

  DoneFail:=0;

  temp:=1;

  Seq.iStepNo:=0;

99:    

  DoneGood:=0;

  DoneFail:=1;

  temp:=1;

  Seq.iStepNo:=0;

END_CASE;


END_FUNCTION_BLOCK;


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