Версия для печати

PCS7: FB1810 TimerP APL V8.2+SP1 update

Дата: 2016-08-26

Добавлено: komatic

Тема: SCL

Обновленная версия блока, отличия от предыдущей версии выделены цветом.

Краткое описание блока.

Name: FB1810
Symbolic Name: TimerP
Symbol Comment: Impulsefunction and delayed On/Off Timer
Family: TIME
Version: 4.1
Author: AdvLib82
Last modified: 05/13/2016
Use: UDT15,UDT16,FC260
Size: 1024 byte

FUNCTION_BLOCK FB11810
TITLE ='Impulsefunction and delayed On/Off Timer'
AUTHOR : AdvLib82
FAMILY : 'TIME'
NAME : TimerP
VERSION : '4.1'
 
 
VAR_INPUT
  SampleTime { S7_visible := 'false'; S7_link := 'false'; S7_sampletime := 'true'; S7_param := 'false' }: REAL  := 1.000000e-001;    //Sampling Time [s]
  Ti { S7_edit := 'para'; S7_dynamic := 'true' }: REAL ;    //Time [s]
  Mode { S7_edit := 'para'; S7_dynamic := 'true' }: INT  := 2;    //0=Pulse,1=ExtP,2=OnDel,3=RetOn-D,4=Off-D
  Reset { S7_dynamic := 'true' }: STRUCT     //1=Reset
   Value : BOOL ;    // Value
   ST : BYTE  := B#16#80;    // Signal Status
  END_STRUCT ;   
  In { S7_dynamic := 'true' }: STRUCT     //Value input
   Value : BOOL ;    // Value
   ST : BYTE  := B#16#80;    // Signal Status
  END_STRUCT ;   
  Init { S7_visible := 'false' }: BOOL ;    //Initialize function block
END_VAR
VAR_OUTPUT
  ErrorNum { S7_visible := 'false'; S7_dynamic := 'true' }: INT  := -1;    //Error number
  Out { S7_dynamic := 'true' }: STRUCT     //Output
   Value : BOOL ;    // Value
   ST : BYTE  := B#16#80;    // Signal Status
  END_STRUCT ;   
  InvOut { S7_dynamic := 'true' }: STRUCT     //inverted output Out
   Value : BOOL  := TRUE;    //Value
   ST : BYTE  := B#16#80;    //Signal Status
  END_STRUCT ;   
  TimeRemaining { S7_dynamic := 'true' }: STRUCT     //Time remaining [s]
   Value : REAL ;    // Value
   ST : BYTE  := B#16#80;    // Signal Status
  END_STRUCT ;   
END_VAR
VAR
  SxFirstStart : BOOL  := TRUE;    //Initial run.
  SxEdgeHlp : BOOL ;    //pos. edge on input In.Value
  SxResetHlp : BOOL ;    //output was reset by reset comand
  SxNoTiErr : BOOL ;    //No Error
  SxModeHlp : INT ;    //Merker fьr Mode
  SrPrevTi : REAL  := -1.000000e-002;    //previous value of Ti
  SrDoublePrec : REAL ;    //double precision
END_VAR
VAR_TEMP
  nTiErr : INT ;   
END_VAR
 
BEGIN
 
IF SxFirstStart OR Init THEN                                    // first start
    ErrorNum:=0;
    SxResetHlp:=true;
    SxFirstStart:=false;
END_IF;
 
IF Init THEN
    SxEdgeHlp:=false;
    SxNoTiErr:=false;
    SxModeHlp:=0;
    SrPrevTi:=-0.01;
END_IF;
 
IF Reset.Value  OR Init  THEN                                  // reset
    SxResetHlp:=true;
    TimeRemaining.Value:=0.0;
    Out.Value:=false;
ELSIF  Ti < SampleTime  THEN                           // wrong time set
    ErrorNum:=11;  
    TimeRemaining.Value:=0.0;
    Out.Value:=false;
ELSE
    IF REAL_TO_DWORD(Ti)<>REAL_TO_DWORD(SrPrevTi)  // if time changed
    THEN
        SrPrevTi:=Ti;
        nTiErr:=0;
       
        Ti:=ChkREAL(In :=Ti,ErrNum :=nTiErr);      // check if time is good number       
 
        IF nTiErr = 1 OR nTiErr = 3 THEN ErrorNum:=33; ELSE ErrorNum:=0; END_IF;
 
        SxNoTiErr:=ErrorNum = 0;
 
    END_IF;
       
 
    IF TimeRemaining.Value>=SampleTime              // calculate rest of time
    THEN
        TimeRemaining.Value:=TimeRemaining.Value-SampleTime;
    ELSE      
        TimeRemaining.Value:=0.0; 
    END_IF;     
 
    IF Mode>4 OR Mode<0                             // check if mode is correct
    THEN
        ErrorNum:=1;
    ELSE
        IF SxNoTiErr THEN ErrorNum:=0; END_IF;
        SxModeHlp:=Mode;
    END_IF;     
 
    IF NOT SxEdgeHlp AND In.Value                   // front on the input
    THEN
        IF SxModeHlp < 4
        THEN
            TimeRemaining.Value:=Ti;
            SxResetHlp:=false;
        END_IF;
    END_IF;   
 
   
    CASE SxModeHlp OF                                   //0=Pulse,1=ExtP,2=OnDel,3=RetOn-D,4=Off-D
        0 :
            IF In.Value
            THEN
                IF TimeRemaining.Value>0.0
                THEN
                    Out.Value:=true;
                ELSE
                    Out.Value:=false;
                END_IF;
            ELSE
                TimeRemaining.Value:=0.0;
                Out.Value:=false;
            END_IF;
           
        1 :
            IF TimeRemaining.Value>0.0
            THEN
                Out.Value:=true;
            ELSE
                Out.Value:=false;
            END_IF;
           
        2 :
            IF In.Value
            THEN
                IF TimeRemaining.Value>0.0
                THEN
                    Out.Value:=false;
                ELSE
                    Out.Value:= NOT SxResetHlp;
                END_IF;
            ELSE
                TimeRemaining.Value:=0.0;
                Out.Value:=false;
            END_IF;
 
        3 :
            IF TimeRemaining.Value>0.0
            THEN
                Out.Value:=false;
            ELSE
                IF SxResetHlp
                THEN
                    Out.Value:=false;
                ELSE
                    Out.Value:=true;
                END_IF;
            END_IF;
                
        4 :
            IF NOT In.Value AND SxEdgeHlp
            THEN
                IF Ti<=SampleTime
                THEN
                    OK:=false;
                    TimeRemaining.Value:=0.0;
                    Out.Value:=false;
                ELSE
                    TimeRemaining.Value:=Ti;
                END_IF;
            END_IF;
           
            IF TimeRemaining.Value>0.0
            THEN
                Out.Value:=true;
            ELSE
                Out.Value:=In.Value;   
            END_IF;
    ELSE:                                                           // wrong mode
        ErrorNum:=1;
        TimeRemaining.Value:=0.0;
        Out.Value:=false;
    END_CASE;
END_IF;
 
SxEdgeHlp:=In.Value;
InvOut.Value:= NOT Out.Value;
Out.ST:=In.ST;
 
IF ErrorNum = 33 AND In.ST <> B#16#0 THEN Out.ST:=B#16#28; END_IF;
 
InvOut.ST:=Out.ST;
 
END_FUNCTION_BLOCK

Block checksum этого исходника, после компиляции,
совпадает с оригинальным, значит код идентичен.

Оригинальная библиотека PCS7 (APL (V8.2sp1) (zip, 4Mb)

Документация на блок (pdf, 21Mb)

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