Siemens SIMATIC ET 200AL, System Manual

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Open User Communication
6.5 Setting up Open User Communication via TCP, ISO-on-TCP, UDP and ISO
Communication
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Function Manual, 05/2021, A5E03735815-AJ
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.