# logic::And4

    sys::Obj
      sys::Virtual
        sys::Component
          logic::And2
            logic::And4

`public class And4`

And4 4 input AND logic object Null inputs are ignored. If all inputs are null output is null out = in1 && in2 && in3 && in4

in3

  `public property bool in3`

  input 3

in4

  `public property bool in4`

  input 4

execute

  `public virtual override void execute()`

  Execute is called once every scan.