Siemens SIMATIC S7-400 Operating Instructions Manual page 23

Forwarding of data from the manufacturing planning as OPC UA server and client
In this configuration as the OPC UA server, the CP adopts setting data for manufacturing
from a higher-level production control system. When necessary the manufacturing data can
be preprocessed on the CPU.
As the OPC UA client, the CP then distributes the manufacturing data using the "Write"
service. The production systems can be S7-400 stations or programmable controllers from
third-party manufacturers.
Figure 1-2
CP 443-1 OPC UA
Operating Instructions, 01/2017, C79000-G8976-C427-02
CP 443-1 OPC UA as OPC UA server and client
Application and functions
1.8 Configuration examples
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