Siemens SIMOCODE pro C System Manual page 208

Mounting, wiring, connecting, system interfaces, configuration guidelines
12.2 Wiring, connecting
Figure 12-17 Connection example SIMOCODE pro S basic unit
Note
Only three inputs can be used
With an external 24 V DC supply, only three inputs can be used
(see "Power supply to the inputs of the basic unit" above).
Note
Baud rates PROFIBUS DP
Baud rates up to 1.5 Mbits are possible via bus terminals A/B.
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System Manual, 05/2019, A5E40507475002A/RS-AD/004
SIMOCODE pro