Generic data types comprise a group of data types. They have the prefix ANY_ ... . Generic data types can be grouped again, for example, ANY_INT covers ANY_SIGNED and ANY_UNSIGNED. The generic data type names staring with ANY_ are not keywords according to IEC, they just describe groups of types with the same properties. The types with SUBRANGE property are part of generic data type ANY_INT. The hierarchy of generic data types id in the following table:
| Generic data type | Group of elementary data types | ||||
|---|---|---|---|---|---|
| ANY ANY_DERIVED ANY_ELEMENTARY |
ANY_MAGNITUDE | ANY_NUM | ANY_REAL | REAL, LREAL | |
| ANY_INT | ANY_UNSIGNED | USINT, UINT, UDINT, ULINT | |||
| ANY_SIGNED | SINT, INT, DINT, LINT | ||||
| ANY_DURATION | TIME | ||||
| ANY_BIT | BOOL, BYTE, WORD, DWORD, LWORD | ||||
| ANY_CHARS | ANY_STRING | STRING | |||
| ANY_DATE | DATE_AND_TIME, DT, DATE, TIME_OF_DAY, TOD | ||||