Annex C (normative) File Transfer ToC Previous Next

C.3 File System ToC Previous Next

C.3.1 FileDirectoryType ToC Previous Next index

This ObjectType defines a type for the representation of file directories. It is formally defined in Table C.8.

It is expected that OPC UA Servers will create vendor-specific subtypes of the FileDirectoryType with additional functionalities like Methods for creating symbolic links or setting access permissions. OPC UA Clients providing specialized file transfer user interfaces should be prepared to expose such additional Methods to the user.

Table C.8 – FileDirectoryType

Attribute Value
BrowseName FileDirectoryType
IsAbstract False

Subtype of the FolderType defined in 6.6.

References NodeClass BrowseName DataType TypeDefinition Modelling Rule
Organizes Object <FileDirectoryName>   FileDirectoryType OptionalPlaceholder
Organizes Object <FileName>   FileType OptionalPlaceholder
HasComponent Method CreateDirectory Defined in C.3.3 Mandatory  
HasComponent Method CreateFile Defined in C.3.4 Mandatory  
HasComponent Method Delete Defined in C.3.5 Mandatory  
HasComponent Method MoveOrCopy Defined in C.3.6 Mandatory  

Instances of the ObjectType contain a list of FileDirectoryType Objects representing the subdirectories of the file directory represented by the instance of this ObjectType.

Instances of the ObjectType contain a list of FileType Objects representing the files in the file directory represented by the instance of this ObjectType.

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