Siemens SIMATIC S7-400 Operating Instructions Manual page 24

Application and functions
1.8 Configuration examples
Horizontal data exchange as OPC UA client and server
In this configuration as OPC UA server and client, the CP exchanges data with other process
stations or PC stations. The process stations can also be programmable controllers from
third-party manufacturers that support the required OPC UA functions.
Figure 1-3
The CP in H systems
The CP 443-1 OPC UA can be operated in H systems. Note the special features and
restrictions in section Operating the CP in an H system (Page 14).
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CP 443-1 OPC UA as OPC UA client and server
Operating Instructions, 01/2017, C79000-G8976-C427-02
CP 443-1 OPC UA