| author | Mario de Sousa <msousa@fe.up.pt> |
| Tue, 05 Apr 2011 19:42:33 +0100 | |
| changeset 284 | 64a4504633d4 |
| parent 276 | 1679f514f38a |
| child 290 | 013eab46aebb |
| permissions | -rwxr-xr-x |
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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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IF R THEN CV := 0 ; |
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ELSIF CU 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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IF R THEN CV := 0 ; |
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ELSIF CU 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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IF R THEN CV := 0 ; |
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ELSIF CU 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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IF R THEN CV := 0 ; |
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ELSIF CU 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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IF R THEN CV := 0 ; |
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ELSIF CU 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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(******************) |
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(* *) |
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(* C T D *) |
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(* *) |
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(******************) |
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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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IF LD THEN CV := PV ; |
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ELSIF CD 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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IF LD THEN CV := PV ; |
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ELSIF CD 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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IF LD THEN CV := PV ; |
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ELSIF CD 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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182 |
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183 |
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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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IF LD THEN CV := PV ; |
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ELSIF CD 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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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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IF LD THEN CV := PV ; |
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ELSIF CD 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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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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234 |
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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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 AND CD) THEN |
| 176 | 244 |
IF CU AND (CV < PV) |
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THEN CV := CV+1; |
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ELSIF CD AND (CV > 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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254 |
|
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255 |
|
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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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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 AND CD) THEN |
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IF CU AND (CV < PV) |
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THEN CV := CV+1; |
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ELSIF CD AND (CV > 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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283 |
|
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284 |
|
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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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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 AND CD) THEN |
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IF CU AND (CV < PV) |
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THEN CV := CV+1; |
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ELSIF CD AND (CV > 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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312 |
|
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313 |
|
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314 |
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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VAR_OUTPUT |
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QU : BOOL; |
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QD : BOOL; |
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CV : UDINT; |
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END_VAR |
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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 AND CD) THEN |
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IF CU AND (CV < PV) |
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THEN CV := CV+1; |
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ELSIF CD AND (CV > 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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341 |
|
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342 |
|
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FUNCTION_BLOCK CTUD_ULINT |
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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 : ULINT; |
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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 : ULINT; |
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END_VAR |
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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 AND CD) THEN |
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IF CU AND (CV < PV) |
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THEN CV := CV+1; |
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ELSIF CD AND (CV > 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 |