Siemens SIMATIC ET 200AL - Page 849

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
Function Manual, 12/2017, A5E03735815-AF
163
In the example, connections to the OPC UA server of the CPU can be established over the
following URLs (Uniform Resource Locator):
The URLs are structured as follows:
● Protocol identifier
"
opc.tcp://"
● IP address
– 192.168.178.151
The IP address at which the OPC UA server can be accessed from the Ethernet
subnet 192.168.178.
– 192.168.1.1
The IP address at which the OPC UA server can be accessed from the Ethernet
subnet 192.168.1.
● TCP Port number
– Default: 4840 (standard port)
The port number can be changed under "OPC > UA > Server > Port".
Dynamic IP addresses
In the example below, the IP address for the PROFINET interface [X2] has not yet been
specified.
The placeholder "<dynamically>" appears in the table.
The IP address of this PROFINET interface is set later on the device. You can, for example,
see what IP address has been assigned to the PROFINET interface [X2] (outside the TIA
Portal) when you search with an OPC UA client for available OPC UA servers. You then
receive a list of available servers together with the IP addresses.