Siemens Simatic S7-300 CP 341 User Manual page 19

The CP 341 can be operated in a PROFINET IO network if
● the corresponding PROFINET IO controller is integrated in the SIMATIC STEP 7 CPU,
● FB7 (P_RCV_RK) / FB8 (P_SND_RK) - blocks with versions higher than or equal to V3.0
are used.
Note
The CP 341 modules (6ES7341-1xH0y-0AE0) cannot be operated behind the external
communication processors CP 342-5 (Profibus DP) and CP 343-1 (Profinet IO)!
CP 341 Point-to-Point Communication, Installation and Parameter Assignment
Manual, 09/2008, A5E02191071-01
www.gkbpx.com
Product Description
1.1 Possible applications for the CP 341
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