Siemens SIMATIC S7-1500 Function Manual page 78

4. In the drop-down list box of the partner end point, select a connection partner. You can
select an unspecified device or a CPU in the project as the communication partner.
Certain connection parameters are then entered automatically.
The following parameters are set:
– Name of the partner end point
– Interface of the partner end point
– IPv4 address of the partner end point
If the connection partners are networked, the name of the subnet is displayed.
5. In the "Configuration type" drop-down list, select between using program blocks or
configured connections.
Communication
Function Manual, 11/2019, A5E03735815-AH
6.5 Setting up Open User Communication via TCP, ISO-on-TCP, UDP and ISO
Open User Communication
77