FUNCTION_BLOCK FB44
VAR_INPUT
ipstring:STRING[16]; //adress ip string
ipStnigDecode AT ipstring: STRUCT //zdekodowany
sizemax:BYTE;
sizeact:BYTE; //rozmiar stringa
str:ARRAY[1..15]OF CHAR; //tablica znaków
END_STRUCT;
END_VAR
VAR_OUTPUT
ip_tab:ARRAY[0..3]OF INT; //tablica - zdekodowany ip
END_VAR
VAR
IP_String_Index:INT;// index po literach
IP_Octet_Index:INT;// index po kolejnych człony IP
IP_octet_calculate:INT; //obliczany bait adresu ip
END_VAR
BEGIN
IP_Octet_Index:=0; IP_octet_calculate:=0;
FOR IP_String_Index:=1 TO BYTE_TO_INT(ipStnigDecode.sizeact) BY 1 DO //przeglądamy string po znakach pętla for
IF ipStnigDecode.str[ IP_String_Index]='.' THEN
ip_Tab[ IP_Octet_Index]:=IP_octet_calculate;
IP_octet_calculate:=0;
IP_Octet_Index:= IP_Octet_Index+1;
ELSE
IP_octet_calculate:=IP_octet_calculate*10+CHAR_TO_INT(ipStnigDecode.str[IP_String_Index])-48; // 48 to kod znaku 0 w asci
END_IF;
END_FOR;
ip_Tab[ IP_Octet_Index]:=IP_octet_calculate; //ostatni bajt
END_FUNCTION_BLOCK
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