OPC Expert enables users to modify an existing address space for any OPC Expert component including (but not limited to)

  • OPC Expert UA Server
  • OPC Expert plugin servers (such as File Server, Performance Monitor, etc)
  • OPC Expert shortcut servers

To modify OPC Expert’s address space, users may change the appropriate CSV file within folder "C:\Program Files\OPC Expert\Settings" with a name including "Address Space.csv" suffix.

The following example is from the default file "OPC Expert UA Server Address Space.csv"

Source NodeID Action Display Name Destination NodeID Comment
i=31915 Hide Locations i=85 Hides node (typically not relevant)
i=23470 Hide Aliases i=85 Hides node (typically not relevant)
i=2253 Hide Server Node i=85 Hides node (typically not relevant)
ns=2;s=_UaDiagnostics MoveContent Move diagnostics ns=2;s=_System->_ExpertSystem Moves folder content
ns=2;s=Datapool MoveContent Datapool i=85 Moves folder content to the base

The following are column explanations:

  • Source NodeID: NodeID (i.e. ItemID or FolderID) to move
  • Action: Specific action to take with the following key words
    • CreateArea: Create a new Area (used for Alarms, Conditions, and Events) that does not exist in original Address Space
    • CreateFolder: Creates a new folder that does not exist in original Address Space
    • DuplicateContent: Duplicates folder contents in a different location and leaves contents in original location
    • DuplicateFolder: Duplicates folder in a different location and leaves folder in original location
    • DuplicateItem: Duplicates item in a different location and leaves item in original location
    • Hide: Hides specific NodeID
    • MoveContent: Moves Content of specific NodeID and not the node itself
    • MoveFolder: Moves a specific folder
    • MoveItem: Moves a specific item
  • Display Name: Name OPC Expert uses as the destination (only used when moving Nodes)
  • Destination NodeID: NodeID (i.e. ItemID or FolderID) to use in the destination. Specifically, NodeID of "i=85" is reserved as the root folder.
  • Comment: Remark for use in documentation only (users can add their reason for adding specific actions)

For example, if users erase above rows, the Address Space for "OPC Expert UA Server" will appear as follows with various extra folders:

Note the following behavior:

  • When deleting the CSV file, OPC Expert will automatically create a new file with default information
  • To remove file contents and therefore show an unmodified Address Space, delete all rows except the header