author | Mario de Sousa <msousa@fe.up.pt> |
Fri, 19 Aug 2011 21:53:11 +0100 | |
changeset 357 | 8a6a69dd23ce |
parent 0 | fb772792efd1 |
child 1094 | 068c28266332 |
permissions | -rwxr-xr-x |
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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Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
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Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
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Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
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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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* Edge detection function blocks |
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* ------------------------------ |
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*) |
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FUNCTION_BLOCK R_TRIG |
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VAR_INPUT CLK: BOOL; END_VAR |
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VAR_OUTPUT Q: BOOL; END_VAR |
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VAR RETAIN M: BOOL; END_VAR |
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Q := CLK AND NOT M; |
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M := CLK; |
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END_FUNCTION_BLOCK |
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FUNCTION_BLOCK F_TRIG |
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VAR_INPUT CLK: BOOL; END_VAR |
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VAR_OUTPUT Q: BOOL; END_VAR |
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VAR RETAIN M: BOOL; END_VAR |
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Q := NOT CLK AND NOT M; |
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M := NOT CLK; |
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END_FUNCTION_BLOCK |
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