Documents are exposed as Variables organized in the Documentation folder. In most cases they will represent a product manual, which can exist as a set of individual documents. The “Documentation” Folder is formally defined in Table 22.

Table 22 – Documentation definition

Attribute	Value
BrowseName	Documentation
References	NodeClass	BrowseName	TypeDefinition	DataType	ModellingRule
HasTypeDefinition	ObjectType	FolderType (defined in OPC 10000-5.)
HasComponent	Variable	<DocumentIdentifier>	BaseDataVariableType	ByteString	MandatoryPlaceholder

All documents are transferred as a ByteString. The BrowseName of each Variable will consist of the filename including the extension that can be used to identify the document type. Typical extensions are “.pdf” or “.txt”.