Checks user [Structure]s (structs with the attribute [Structure]).
All fields have to be of a type that is compatible with IEC and not Any.
Explicitly allowed types are
CSharp basic types:
boolsbyteshortintlongbyteushortuintulongfloatdouble
.Net basic types:
BooleanSByteInt16Int32Int64ByteUInt16UInt32UInt64SingleDouble
IEC types:
IecStringExIecString80IecWStringIecWString80- Structures attributed with
[Structure],[Array]or[String] enumsattributed with[Enumeration]
Change the field type to one of the explicitly allowed types.
