Siemens SIMATIC S7-1500 Function Manual page 270

3. Enter a path within the OPC UA server to restrict access to this path. The information is
optional. However, some servers only establish a connection if a server path is specified.
When you specify a path, it is automatically entered at the "ServerEndpointUrl" entry in
the configuration DB for the client interface. The entry then consists of the components
"OPC Schematic Prefix", "IP address", "Port number" and "Server path", for example:
"opc.tcp://192.168.0.10:4840/example/path".
The following figure shows the entry of the IP address for the OPC UA server:
Figure 9-70 Connection parameters
4. If the OPC UA server is not using the standard port 4840, you must insert the port
number here.
For example, enter the number 65535 in the field, if the OPC UA server to which you
want to establish a connection uses this port number.
5. In addition, you accept the default settings for session timeout (30 seconds) and
monitoring time (5 seconds).
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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