MUX

MUX

PROGRAM MUX_DEMO
    VAR
       REAL1: REAL;
           INT1:INT;
  END_VAR
    REAL3:= MUX(K:=0, IN0:=1, IN2:=3, IN3:=4);
END_PROGRAM

The function multiplexes the input signals to a single output. The input signal K specifies which of the IN inputs will be brought to the output. At K=0 the output has value of IN0. For K, that is out of range of defined inputs, output will always be value from the first valid input.

The inputs should be defined with no gaps in numbering; if an input will not be used, it can be made invisible  by unchecking the “Visible” property. At the invisible inputs, please enter a value which has to be brought to the output in case this input is selected.