Siemens SIMATIC ET 200SP System Manual page 73

BA 2×FC BusAdapter mounted
①
②
③
④
⑤
Figure 5-14
Note
Installation guidelines for modules with PROFINET IO interfaces
Only when all connected nodes are equipped with a SELV/PELV power supply (or have
equivalent protection) is it permitted to operate the modules with PROFINET IO interfaces in
LANs (Local Area Networks).
A data transfer point is prescribed for connection to the WAN (Wide Area Network) that
guarantees this degree of safety.
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
CPU
BA 2×FC BusAdapter
PROFINET connecting cable
Connection element
Interface module
Connecting the BA 2×FC BusAdapter to the CPU/interface module
5.9 Connecting interfaces for communication
Wiring
73