To discover OPC folders and data items

1. In the Opc Device Manager, in the Exts column, double-click the Points icon   in the row representing the OpcDaClient you wish to explore.

   This brings up its Opc Point Manager.

2. Click the Discover button to learn the OPC folders and data items that are available.

   When the discovery job completes, discovered items are listed in the top pane of the view, in an expandable tree in the “Discovered” table. Depending on the structure of the OPC server, each folder is a container for either/both more (subordinate) OPC folders, or perhaps OPC data items.

   See Discovered pane notes for additional details.

   You are not required to “mirror” the group structure of the OPC server in the OpcNetwork—use of OpcPointFolders is an organizational utility, and is optional.

3. To add Opc proxy points, see add.

To add discovered OPC data items as Opc proxy points

Perform this task to add Opc proxy points.

1. Select the OPC data items in the Database pane of the Opc Point Manager.

2. You can map selected points in the station in different ways:

   • Drag from the Discovered pane to Database pane (brings up an Add dialog).

   • Double-click an item in the Discovered pane (also brings up an Add dialog).

   This works the same as in other driver’s Point Manager views.

3. When the Add dialog appears, you can optionally edit a number of fields for each OPC data item.

   The following brief summaries explain a few Add dialog fields:

   • Name is the Opc proxy point name—you can change this if needed.

   • Type is the Opc “type,” which defaults either to a read-only point (NumericPoint, BooleanPoint, StringPoint) or writable point (NumericWritable, BooleanWritable, StringWritable), depending on the type and mode of data.

     Unlike other entries in the Add dialog, you cannot edit the point’s Type later.

   • Id is the learned data item’s full hierarchical address, including folders.

   For complete details on all fields, see Add and Edit dialog fields.

4. When you have Opc proxy point(s) configured properly for your usage, click OK.

   The proxy points ares added to the station, and appear listed in the Database pane.

   For more details, see Opc proxy point.