Siemens SIMATIC S7-1500 Function Manual page 262

3. Double-click the selected client interface.
The editor for client interfaces is displayed.
Figure 9-64 Editor for client interface
4. In the left section of the editor, click "Add new read list", "Add new write list", or "Add new
method list".
5. In the right field of the editor, select "Online[]" as data source for "Source of server data":
Communication
Function Manual, 11/2019, A5E03735815-AH
9.4 Using the S7-1500 CPU as an OPC UA client
OPC UA communication
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