Plant changes in RUN - CiR 
  11.8 Procedure for PROFIBUS DP 
CPU 410 Process Automation/CPU 410 SMART 
System Manual, 05/2017, A5E31622160-AC 
179 
 
Reconfigure the hardware when adding a slave 
Procedure 
1.  Equip the PROFIBUS DP and PROFIBUS PA bus cables with active bus terminals on 
both ends, so that the cables are correctly terminated during reconfiguration. 
2.  Always make sure not to disconnect any of the bus lines when you add a slave to a 
master system. 
–  One way to achieve this is to install and wire up additional connectors in the 
corresponding expansion slot of the master system. You can then use these bus 
connectors to connect a new slave. 
–  Another method is to install repeaters or diagnostics repeaters. In this case, add a 
slave as follows: 
Switch off the repeater function. 
Connect the new slave to the free side of the repeater. Note the current installation 
guidelines (see 
Installation Manual: Installing Automation Systems S7-400, M7-400)
. 
Switch on the repeater function again. 
 
change process image partition assignment 
Procedure 
You can change the assignment of a process image partition of an existing module or 
compact slave as follows: 
1.  Open the properties window of the module or slave. Specify the new process image 
partition in the "Addresses" tab. 
2.  Download the new configuration with HW Config. 
 
reconfigure existing modules in ET200M / ET200iSP stations 
Procedure 
The procedure for using previously free channels is described under Using a Previously 
Unused Channel. 
The procedure for reconfiguring already used channels of ET200M / ET200iSP modules is 
described under Reconfiguring a Previously Used Channel or under Removing a Previously 
Used Channel.  
Reconfiguring an already used channel. (Page 188) 
Delete an already used channel. (Page 189)