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AnnexF/cmd_monitor_st.txt
author Edouard Tisserant
Tue, 14 Dec 2021 08:48:05 +0100
changeset 1096 fad6e7a818e2
parent 0 fb772792efd1
permissions -rwxr-xr-x
Variable forcing now uses limited list and buffer instead of systematical instance tree traversal and in-tree "fvalue" to keep track of forced value for pointed variables (external, located). Pointer swapping is performed when forcing externals and located, with backup being restored when forcing is reset. Match Beremiz commit 93ad018fb602.
0
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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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