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AnnexF/cmd_monitor_il.txt
author Edouard Tisserant <edouard@beremiz.fr>
Mon, 22 Apr 2024 12:11:51 +0200
changeset 1104 0bc1f5a4f975
parent 0 fb772792efd1
permissions -rwxr-xr-x
Continue changing STRING length from int8_t to uint8_t.

This fix segmentation faults caused by overflow when converting from string to numeric types.
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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LD	T_CMD_MAX
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ST	CMD_TMR.PT	(* Store an input to the TON FB *)
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LD	AUTO_CMD
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AND	AUTO_MODE
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OR(	MAN_CMD
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ANDN	AUTO_MODE
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ANDN	MAN_CMD_CHK
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)
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ST	CMD
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IN	CMD_TMR	(* Invoke the TON FB *)
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LD	CMD_TMR.Q
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ANDN	FDBK
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ST	ALRM_FF.S1	(* Store an input to the SR FB *)
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LD	ACK
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R	ALRM_FF	(* Invoke the SR FB *)
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LD	ALRM_FF.Q1
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ST    	ALRM
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END_FUNCTION_BLOCK













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