Siemens SIMATIC S7-1500 Automation System System Manual page 96

Commissioning
8.3 Commissioning procedure
Special considerations: CPU as bus device
For the operation of a CPU, the following requirements must be noted:
● PROFIBUS interface (only at CPU 1516-3 PN/DP)
● PROFINET interface
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– The integrated PROFIBUS interface of the CPU is configured using STEP 7
(participant IP address and bus parameters configured).
– The CPU is connected to the subnet.
– The terminating resistors at the segment boundaries are switched on.
See the PROFIBUS Function Manual
(http://support.automation.siemens.com/WW/view/en/59193579)
– The integrated PROFINET interface of the CPU is configured using STEP 7
(IP address and device name configured).
– The CPU is connected to the subnet.
See the PROFIBUS Function Manual
(http://support.automation.siemens.com/WW/view/en/49948856)
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01