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AnnexF/cmd_monitor_st.txt
author Laurent Bessard
Tue, 11 Sep 2012 01:05:24 +0200
changeset 628 fe0d516fe291
parent 0 fb772792efd1
permissions -rwxr-xr-x
Fix bug in SFC generated code. Action state was declared in the list of variables to debug, but wasn't stored using structure with flags. This error had side effects that makes Beremiz debug crash.
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
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FUNCTION_BLOCK CMD_MONITOR
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 VAR_INPUT AUTO_CMD : BOOL ; (* Automated command *)
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          AUTO_MODE : BOOL ; (* AUTO_CMD enable *)
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            MAN_CMD : BOOL ; (* Manual Command *)
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        MAN_CMD_CHK : BOOL ; (* Negated MAN_CMD to debounce *)
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          T_CMD_MAX : TIME ; (* Max time from CMD to FDBK *)
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               FDBK : BOOL ; (* Confirmation of CMD completion
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                                by operative unit *)
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                ACK : BOOL ; (* Acknowledge/cancel ALRM *)
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 END_VAR
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 VAR_OUTPUT CMD : BOOL ;   (* Command to operative unit *)
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           ALRM : BOOL ;   (* T_CMD_MAX expired without FDBK *)
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 END_VAR
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 VAR CMD_TMR : TON ;    (* CMD-to-FDBK timer *)
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     ALRM_FF : SR ;     (* Note over-riding S input: *)
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 END_VAR                (* Command must be cancelled before
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                              "ACK" can cancel alarm *)
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 (* Function Block Body *)
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    CMD := AUTO_CMD & AUTO_MODE
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          OR MAN_CMD & NOT MAN_CMD_CHK & NOT AUTO_MODE ;
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    CMD_TMR (IN := CMD, PT := T_CMD_MAX);
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    ALRM_FF (S1 := CMD_TMR.Q & NOT FDBK, R := ACK);
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    ALRM := ALRM_FF.Q1;
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END_FUNCTION_BLOCK













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