VAR_INPUT
    LBLS : WSTRING; (* Comma-separated labels: "Left,Top,Right,Bottom,Center" *)
    COLORS : COLOR[2] := [black,white]; (* {Foreground,Background} *)
    DIMS : UINT[2] := [3,3]; (* {Width,Height}in Diameters *)
    DIA : UINT; (* Diameter dimension *)
END_VAR

Instances of this function block type provide an open space with (possibly) labels in specified foreground and background colors.

The LBLS input consists of a comma-separated list of labels in a clockwise order of location (Left,Top,Right,Bottom,Center). Missing elements are treated as empty labels.

Examples of instances of this type are shown in the DRILL_VIEWL configuration.