Siemens SIMATIC S7-1500 Function Manual page 17

Product overview
Interfaces of communications processors
Interfaces of communication processors (CP) offer additional functionality to what is provided
by the integrated interfaces of the CPUs. CPs allow special applications, for example the
CP 1543-1 provides Industrial Ethernet security functions for protecting Industrial Ethernet
networks via its Industrial Ethernet interface.
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Figure 2-3
16
Industrial Ethernet interface
Industrial Ethernet interface of the CP 1543-1
Function Manual, 11/2019, A5E03735815-AH
Communication