New OPC UA DataTypes for built-in XML data types – OPC Unified Architecture – Part 120: OPC UA and XML Data Type Mapping

5.4 New OPC UA DataTypes for built-in XML data types

In Table 14, the mapping of built-in XML data types to OPC UA DataTypes is defined, where there is no corresponding built-in OPC UA DataType available. Those OPC UA DataTypes are defined in 6. In some cases, the range is smaller than possible in the XML data type.

Table 14 – New OPC UA DataTypes

OPC UA DataType	XML DataType	Comment
XmlQName	QName	Contains XML document specific prefix Implementations might limit the maximum String size.
Array of XmlQName	NOTATION	Contains XML document specific prefixes Implementations might limit the maximum String size.
XmlToken	token	Implementations might limit the maximum String size.
XmlNmToken	NMTOKEN	Implementations might limit the maximum String size.
Array of XmlNmToken	NMTOKENS	Implementations might limit the maximum array length.
XmlName	Name	Implementations might limit the maximum String size.
XmlNcName	NCName	Implementations might limit the maximum String size.
XmlId	ID	Implementations might limit the maximum String size.
XmlIdRef	IDREF	Implementations might limit the maximum String size.
Array of XmlIdRef	IDREFS	Implementations might limit the maximum array length.
XmlEntity	ENTITY	Implementations might limit the maximum String size.
Array of XmlEntity	ENTITIES	Implementations might limit the maximum array length.
XmlInteger	integer	XmlInteger is a subtype of Int64 with a limited max. and min. value, whereas the size of integer is unlimited.
XmlNonPositiveInteger	nonPositiveInteger	The min. of XmlNonPositiveInteger is limited to min. of Int64, whereas the min. of nonPositiveInteger is unlimited.
XmlNegativeInteger	negativeInteger	The min. of XmlNegativeInteger is limited to min. of Int64, whereas the min. of negativeInteger is unlimited.
XmlNonNegativeInteger	nonNegativeInteger	The max. of XmlNonNegativeInteger is limited to max. of UInt64, whereas the max. of nonNegativeInteger is unlimited.
XmlPositiveInteger	positiveInteger	The max. of XmlPositiveInteger is limited to max. of UInt64, whereas the max. of positiveInteger is unlimited.
XmlHexBinary	hexBinary	Implementations might limit the maximum ByteString size.
XmlYearMonthDuration	yearMonthDuration	Implementations might limit the maximum String size.
XmlGYearMonth	gYearMonth	Implementations might limit the maximum String size.
XmlDayTimeDuration	dayTimeDuration	Implementations might limit the maximum String size.
XmlGYear	gYear	Implementations might limit the maximum String size.
XmlGMonth	gMonth	Implementations might limit the maximum String size.
XmlGDay	gDay	Implementations might limit the maximum String size.
XmlGMonthDay	gMonthDay	Implementations might limit the maximum String size.
XmlTime	time	Implementations might limit the maximum String size.
XmlDate	date	Implementations might limit the maximum String size.