4 Configuration and Project Engineering 
4.2 Configuring the SIMATIC controller 
 
SINAMICS V20 at S7-1200/1500 via USS 
Entry ID: 109480894,    V1.0,    09/2018 
 
 Siemens AG 2018 All rights reserved 
In the graphic area, select the SIMATIC controller and go to the Device view. In the Hardware 
catalog task card, locate the 
  CM1241 (RS422/485) communication module, version ≥V2.1, for the CPU 1215C 
  CM PtP RS422/485 HF communication module, version ≥V1.0 for the CPU 1511-1 PN 
and use drag and drop to move it to an allowed slot next to the CPU in the graphic area of the 
Network view. 
 
If necessary, change the Ethernet address. To do this, double-click the CPU to open its properties.