Siemens SIMATIC ET 200AL System Manual page 1342

The URLs are structured as follows:
• Protocol identifier "opc.tcp://"
• IP address
– 192.168.178.151
– 192.168.1.1
• TCP Port number
– Default: 4840 (standard port)
Dynamic IP addresses
In the example below, the IP address for the PROFINET interface [X2] has not yet been
specified.
Figure 9-15
The placeholder "<dynamically>" appears in the table.
The IP address of this PROFINET interface is set later on the device, e.g. via the display of the
CPU.
Communication
Function Manual, 05/2021, A5E03735815-AJ
The IP address at which the OPC UA server can be accessed from the Ethernet subnet
192.168.178.
The IP address at which the OPC UA server can be accessed from the Ethernet subnet
192.168.1.
The port number can be changed under "OPC > UA > Server > Port".
Display of the server addresses with dynamic IP address
OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
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