Commissioning 
  3.4 Configuring the drive components 
Connection of the SINAMICS S120 to the Technology CPU 
Product Information, 09/2011, A5E00480378-04 
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14. For process data communication between the Technology CPU and power section via 
PROFIBUS DP (DRIVE), set a suitable message frame, such as message frame 105. 
You can find further information about the properties of the individual message frames in 
the "Extending a PROFIdrive message frame (Page 130)" section.  
Click
 
"Next" to confirm the setting.