Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 1036)

L-force | PLC Designer
Programming Reference
1034 DMS 4.1 EN 03/2011 TD29

Implementation:
(* possible: *)
colorvar1 := colors_1.blue;
colorvar2 := colors_2.blue;
(* not possible: *)
colorvar1 := blue;
colorvar2 := blue;
2. The base data type of the enumeration - which by default is INT - can be explicitly
specified.
Example:
The base data type for enumeration BigEnum should be DINT:
TYPE BigEnum : (yellow, blue, green:=16#8000) DINT;
END_TYPE
Subrange types
A subrange type is a user defined type whose range of values is only a subset of that of
the basic data type. Notice the possibility of using implicit range boundary checks.
The declaration can be done in a DUT object but also a variable can be directly declared
with a subrange type:
Syntax for the declaration as a DUT object:
TYPE <Name> : <Inttype> (<ug>..<og>) END_TYPE;
<Name> must be a valid IEC identifier,
<Inttype> is one of the data types SINT, USINT, INT, UINT, DINT, UDINT, BYTE, WORD, DWORD (LINT,
ULINT, LWORD).
<ug> Is a constant which must be compatible with the basic type and which sets the lower
boundary of the range types. The lower boundary itself is included in this range.
<og> Is a constant that must be compatible with the basic type, and sets the upper boundary of
the range types. The upper boundary itself is included in this basic type.
Examples:
TYPE
SubInt : INT (-4095..4095);
END_TYPE