Semantic Error: A value with the name '...' does not exist in the enumeration '...'.
In a data types worksheet or in a code worksheet, an element of a user-defined enumeration data type is tried to be accessed which is not defined in the enumeration list.
In the data type worksheet, this can only be an initialization error.
Example:
In the code, a non-existing enumeration element shall be read or written. In the ST and FBD/LD examples below, MyEnum contains the values Red, Green, Blue OF INT.
