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Codesys V2.3 🇬🇧
dengjun
2007-10-07
2007-10-16

  • dengjun - 2007-10-07

    hello:

       I have a little question.please help.what's the meaning of "SEL"?

    thanks very much.

     

  • DaLorD - 2007-10-16

    It is a selection function.

    You change the state of the output with an boolean input.

    The Variables In1 and In2 can be of any kind

    example in ST

    IF YourBooleanVariable THEN

    YourOutPutVariable:=YourInputVariable1;

    ELSE

    YourOutPutVariable:=YourInputVariable2;

    END_IF

    Some call it a "Analog switch"

     

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