S7-300, CPU 31xC and CPU 31x: Installation 
Operating Instructions, Edition 08/2004, A5E00105492-05 
8-1 
Commissioning 
8
8.1  Overview 
This section contains important notes on commissioning which you should strictly observe in 
order to avoid injury or damage to machines. 
 
 
Note 
Your commissioning phase is determined primarily by your application, so we can only offer 
you general information, without claiming completeness of this topic. 
 
Reference 
Note the information about commissioning provided in the descriptions of your system 
components and devices. 
8.2  Commissioning procedure 
8.2.1  Procedure: Commissioning the hardware 
Hardware requirements 
•  S7-300 is installed 
•  S7-300 is wired 
With networked S7-300, the following applies to these interfaces: 
•  MPI/ PROFIBUS 
–  MPI/PROFIBUS addresses are configured 
–  segments are terminated with active terminating resistors 
•  PROFINET 
–  integrated PROFINET interface of CPU 31x-2 PN/DP is configured with STEP 7  
(IP address and transfer medium / duplex operation is set in HW Config) and 
–  the CPU is connected to the subnet.