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MemFill

Engineering 🇬🇧
edmond
2018-09-27
2018-09-27

  • edmond - 2018-09-27

    hi,
    how to use MemFill Function?

    sText:='HELLO';
mem.MemFill(ADR(stext),2,7);

    Result is '$07$07LLO' , first 2 bytes change.

    after that i try 0 instead of 7,

    sText:='HELLO';
mem.MemFill(ADR(stext),2,0);

    Result of sText is '', nothing left.
    Why?

     

  • Anonymous - 2018-09-27

    Originally created by: Viacheslav Mezentsev

    Try this.

    program PLC_PRG
var
    b: bool := true;
    sz: uint;
    sText: string := 'HELLO';
end_var
if b then
    sz := len( sText );
    Mem.MemFill( adr( stext ), sz, 16#31 ); // 0x31 = '1'
    b := false;
    
end_if

    sText is ASCIIZ string. So 0x00 is the mark of the end of string.

     

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