lib/counter.txt
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Sun, 14 Oct 2018 20:14:13 +0300
changeset 1073 24ef30a9bcee
parent 290 013eab46aebb
permissions -rwxr-xr-x
revert commits improved performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR)

Following commits are reverted:
mjsousa 0b275a2 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR) -- increase hardcoded limit to 499
mjsousa 2228799 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR) -- Add comments!!
mjsousa ce81fa6 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR)"

The reason is that they cause regression in some cases (if function is
used as argument for function block, for example) and this is not
fixed for a long time.
0
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(* Following taken directly from the IEC 61131.3 draft standard *)
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(*
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 * An IEC 61131-3 IL and ST compiler.
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 *
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 * Based on the
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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
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 *
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 *)
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(*
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 * This is part of the library conatining the functions
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 * and function blocks defined in the standard.
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 *
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 * Counter function blocks
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 * -----------------------
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 *)
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(******************)
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(*                *)
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(*    C  T  U     *)
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(*                *)
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(******************)
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FUNCTION_BLOCK CTU
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  VAR_INPUT
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    CU : BOOL;
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    R : BOOL;
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    PV : INT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : INT;
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  END_VAR
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  VAR
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    CU_T: R_TRIG;
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  END_VAR
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF CU_T.Q AND (CV < PV)
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       THEN CV := CV+1;
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  END_IF ;
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  Q := (CV >= PV) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTU_DINT
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  VAR_INPUT
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    CU : BOOL;
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    R : BOOL;
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    PV : DINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : DINT;
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  END_VAR
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  VAR
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    CU_T: R_TRIG;
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  END_VAR
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF CU_T.Q AND (CV < PV)
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       THEN CV := CV+1;
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  END_IF ;
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  Q := (CV >= PV) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTU_LINT
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  VAR_INPUT
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    CU : BOOL;
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    R : BOOL;
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    PV : LINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : LINT;
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  END_VAR
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  VAR
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    CU_T: R_TRIG;
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  END_VAR
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF CU_T.Q AND (CV < PV)
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       THEN CV := CV+1;
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  END_IF ;
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  Q := (CV >= PV) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTU_UDINT
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  VAR_INPUT
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    CU : BOOL;
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    R : BOOL;
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    PV : UDINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : UDINT;
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  END_VAR
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  VAR
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    CU_T: R_TRIG;
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  END_VAR
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF CU_T.Q AND (CV < PV)
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       THEN CV := CV+1;
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  END_IF ;
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  Q := (CV >= PV) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTU_ULINT
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  VAR_INPUT
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    CU : BOOL;
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    R : BOOL;
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    PV : ULINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : ULINT;
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  END_VAR
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  VAR
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    CU_T: R_TRIG;
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  END_VAR
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF CU_T.Q AND (CV < PV)
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       THEN CV := CV+1;
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  END_IF ;
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  Q := (CV >= PV) ;
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END_FUNCTION_BLOCK
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   147
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   148
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(******************)
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(*                *)
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(*    C  T  D     *)
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(*                *)
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(******************)
0
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FUNCTION_BLOCK CTD
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  VAR_INPUT
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    CD : BOOL;
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    LD : BOOL;
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    PV : INT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : INT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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  END_VAR
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   169
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  CD_T(CD);
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  IF LD THEN CV := PV ;
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  ELSIF CD_T.Q AND (CV > 0)
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      THEN CV := CV-1;
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  END_IF ;
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  Q := (CV <= 0) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTD_DINT
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  VAR_INPUT
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    CD : BOOL;
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    LD : BOOL;
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    PV : DINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : DINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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  END_VAR
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   192
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  CD_T(CD);
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  IF LD THEN CV := PV ;
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  ELSIF CD_T.Q AND (CV > 0)
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      THEN CV := CV-1;
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  END_IF ;
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  Q := (CV <= 0) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTD_LINT
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  VAR_INPUT
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    CD : BOOL;
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    LD : BOOL;
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    PV : LINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : LINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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  END_VAR
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   215
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  CD_T(CD);
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  IF LD THEN CV := PV ;
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  ELSIF CD_T.Q AND (CV > 0)
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      THEN CV := CV-1;
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  END_IF ;
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  Q := (CV <= 0) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTD_UDINT
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  VAR_INPUT
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    CD : BOOL;
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    LD : BOOL;
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    PV : UDINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : UDINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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  END_VAR
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  CD_T(CD);
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  IF LD THEN CV := PV ;
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  ELSIF CD_T.Q AND (CV > 0)
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      THEN CV := CV-1;
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  END_IF ;
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  Q := (CV <= 0) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTD_ULINT
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  VAR_INPUT
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    CD : BOOL;
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    LD : BOOL;
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    PV : ULINT;
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  END_VAR
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  VAR_OUTPUT
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    Q : BOOL;
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    CV : ULINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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  END_VAR
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  CD_T(CD);
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  IF LD THEN CV := PV ;
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  ELSIF CD_T.Q AND (CV > 0)
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      THEN CV := CV-1;
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  END_IF ;
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  Q := (CV <= 0) ;
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END_FUNCTION_BLOCK
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(********************)
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(*                  *)
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(*    C  T  U D     *)
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(*                  *)
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(********************)
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0
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FUNCTION_BLOCK CTUD
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  VAR_INPUT
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    CU : BOOL;
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    CD : BOOL;
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    R  : BOOL;
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    LD : BOOL;
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    PV : INT;
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  END_VAR
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  VAR_OUTPUT
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    QU : BOOL;
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    QD : BOOL;
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    CV : INT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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    CU_T: R_TRIG;
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  END_VAR
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  CD_T(CD);
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  CU_T(CU);
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  IF R THEN CV := 0 ;
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  ELSIF LD THEN CV := PV ;
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  ELSE
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    IF NOT (CU_T.Q AND CD_T.Q) THEN
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      IF CU_T.Q AND (CV < PV)
0
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      THEN CV := CV+1;
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      ELSIF CD_T.Q AND (CV > 0)
0
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      THEN CV := CV-1;
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      END_IF;
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    END_IF;
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  END_IF ;
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  QU := (CV >= PV) ;
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  QD := (CV <= 0) ;
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END_FUNCTION_BLOCK
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276
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FUNCTION_BLOCK CTUD_DINT
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  VAR_INPUT
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    CU : BOOL;
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    CD : BOOL;
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    R  : BOOL;
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    LD : BOOL;
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    PV : DINT;
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  END_VAR
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  VAR_OUTPUT
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    QU : BOOL;
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    QD : BOOL;
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    CV : DINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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    CU_T: R_TRIG;
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  END_VAR
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   332
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  CD_T(CD);
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  CU_T(CU);
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   335
276
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  IF R THEN CV := 0 ;
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  ELSIF LD THEN CV := PV ;
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  ELSE
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    IF NOT (CU_T.Q AND CD_T.Q) THEN
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      IF CU_T.Q AND (CV < PV)
276
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      THEN CV := CV+1;
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      ELSIF CD_T.Q AND (CV > 0)
276
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      THEN CV := CV-1;
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      END_IF;
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    END_IF;
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  END_IF ;
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  QU := (CV >= PV) ;
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  QD := (CV <= 0) ;
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END_FUNCTION_BLOCK
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FUNCTION_BLOCK CTUD_LINT
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  VAR_INPUT
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    CU : BOOL;
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    CD : BOOL;
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    R  : BOOL;
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    LD : BOOL;
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    PV : LINT;
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  END_VAR
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  VAR_OUTPUT
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    QU : BOOL;
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    QD : BOOL;
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    CV : LINT;
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  END_VAR
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  VAR
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    CD_T: R_TRIG;
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    CU_T: R_TRIG;
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  END_VAR
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   369
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  CD_T(CD);
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  CU_T(CU);
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   372
276
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  IF R THEN CV := 0 ;
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  ELSIF LD THEN CV := PV ;
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   375
  ELSE
290
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    IF NOT (CU_T.Q AND CD_T.Q) THEN
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      IF CU_T.Q AND (CV < PV)
276
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      THEN CV := CV+1;
290
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      ELSIF CD_T.Q AND (CV > 0)
276
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      THEN CV := CV-1;
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      END_IF;
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    END_IF;
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  END_IF ;
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  QU := (CV >= PV) ;
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  QD := (CV <= 0) ;
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END_FUNCTION_BLOCK
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   387
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   388
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FUNCTION_BLOCK CTUD_UDINT
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  VAR_INPUT
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    CU : BOOL;
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    CD : BOOL;
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    R  : BOOL;
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    LD : BOOL;
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    PV : UDINT;
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  END_VAR
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   397
  VAR_OUTPUT
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   398
    QU : BOOL;
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diff changeset
   399
    QD : BOOL;
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   400
    CV : UDINT;
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   401
  END_VAR
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   402
  VAR
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   403
    CD_T: R_TRIG;
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   404
    CU_T: R_TRIG;
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   405
  END_VAR
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   406
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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   407
  CD_T(CD);
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   408
  CU_T(CU);
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   409
276
1679f514f38a Updating origin and license info of library fuctions.
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diff changeset
   410
  IF R THEN CV := 0 ;
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   411
  ELSIF LD THEN CV := PV ;
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diff changeset
   412
  ELSE
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   413
    IF NOT (CU_T.Q AND CD_T.Q) THEN
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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parents: 276
diff changeset
   414
      IF CU_T.Q AND (CV < PV)
276
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diff changeset
   415
      THEN CV := CV+1;
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   416
      ELSIF CD_T.Q AND (CV > 0)
276
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   417
      THEN CV := CV-1;
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diff changeset
   418
      END_IF;
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diff changeset
   419
    END_IF;
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   420
  END_IF ;
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   421
  QU := (CV >= PV) ;
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   422
  QD := (CV <= 0) ;
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   423
END_FUNCTION_BLOCK
1679f514f38a Updating origin and license info of library fuctions.
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diff changeset
   424
1679f514f38a Updating origin and license info of library fuctions.
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diff changeset
   425
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   426
FUNCTION_BLOCK CTUD_ULINT
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   427
  VAR_INPUT
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   428
    CU : BOOL;
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   429
    CD : BOOL;
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diff changeset
   430
    R  : BOOL;
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   431
    LD : BOOL;
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   432
    PV : ULINT;
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diff changeset
   433
  END_VAR
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diff changeset
   434
  VAR_OUTPUT
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diff changeset
   435
    QU : BOOL;
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diff changeset
   436
    QD : BOOL;
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diff changeset
   437
    CV : ULINT;
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   438
  END_VAR
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   439
  VAR
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   440
    CD_T: R_TRIG;
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   441
    CU_T: R_TRIG;
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   442
  END_VAR
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   443
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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   444
  CD_T(CD);
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   445
  CU_T(CU);
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   446
276
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diff changeset
   447
  IF R THEN CV := 0 ;
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diff changeset
   448
  ELSIF LD THEN CV := PV ;
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diff changeset
   449
  ELSE
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   450
    IF NOT (CU_T.Q AND CD_T.Q) THEN
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   451
      IF CU_T.Q AND (CV < PV)
276
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diff changeset
   452
      THEN CV := CV+1;
290
013eab46aebb Fixing implementation of CU, CD, and CUD in standard library.
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diff changeset
   453
      ELSIF CD_T.Q AND (CV > 0)
276
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diff changeset
   454
      THEN CV := CV-1;
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diff changeset
   455
      END_IF;
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diff changeset
   456
    END_IF;
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diff changeset
   457
  END_IF ;
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   458
  QU := (CV >= PV) ;
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diff changeset
   459
  QD := (CV <= 0) ;
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diff changeset
   460
END_FUNCTION_BLOCK