Standard File System Support - Siemens SINUMERIK 840Dsl Configuration Manual

Functionality
5.5 File system
5.5.3

Standard file system support

Standard methods
The SINUMERIK OPC UA server supports the "FileType"/"FolderType" as described in the
OPC UA Specification Part 5, which allows manipulating files and folders via OPC UA. The
folders, "Part Programs", "Sub Programs" and "Work Pieces" are of the
"FileType"/"FolderType" type, which contain the following methods:
Method/Attribute
CreateDirectory
CreateFile
Delete
MoveOrCopy
You can create, delete, move or copy folders and files using the above methods. When you
create a new folder using "CreateDirectory"', a new node will be created with "FolderType"
and name provided by the OPC UA client. This folder contains all methods and attributes
specified in above table.
The node in the address space, under which the "CreateDirectory" method is called, is the
"parent" node of the new folder node.
Here, the files are available with the extensions .mpf, .spf and .wpf respectively under Part
Program, Sub Programs and Work Pieces folders of Sinumerik. Each of these files will be of
"FileType" type and consists of following methods and properties:
Method/Attribute
Open
Read
Write
Close
GetPosition
SetPosition
OpenCount
Size
UserWritable
Writable
Whenever the user creates a new file using the method "CreateFile", a new node will be created
with "FileType" type with a user provided name. This file again contains all methods and
attributes specified in the table above. The node in address space, under which the
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Description
To create new folders under parent folder.
To create new file under parent folder.
To delete folder and file under parent folder.
To copy of move files from source to destination
within server filesystem.
Description
Opens the file either in read/write mode.
Reads contents of the file.
Writes data to the file. (if write permission is avail‐
able)
Closes the file. (succeeds if file is open)
Gets the position of current position of file pointer
while file read/write operation.
Sets the position of current position of file pointer
while file read/write operation.
Gives the number of file open instances.
Gives the file size details.
Set to true if current user has access to modify the
content of the file.
Set to false if the file is read only.
SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 04/2018, 6FC5397-1DP41-0BA0