Siemens Simatic S7-300 CPU 31xC Series User Manual

Commissioning
8.6 Commissioning PROFINET IO
S7-300, CPU 31xC and CPU 31x: Installation
8-36 Operating Instructions, Edition 08/2004, A5E00105492-05
Commissioning a PROFINET IO system via MPI/DP
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Number Meaning
1 Use the PG cable to connect the PG to the integrated MPI/DP interface of the CPU.
2 Use the twisted-pair patch cable to interconnect the integrated PROFINET IO interface
of the CPU with the Industrial Ethernet (for example, connection to a switch).
Commissioning a PROFINET IO system directly via PN interface
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PG/PC
2
1
Number Meaning
1 Use a twisted-pair patch cable to connect the PG/PC to a switch
2 In the same way, connect the switch to the integrated PROFINET interface of your CPU

Siemens Simatic S7-300 CPU 31xC Series Specifications

General

Series	S7-300 CPU 31xC
Power Supply	24 V DC
Communication Interfaces	MPI, PROFIBUS DP
Programming Languages	LAD, STL, FBD, SCL
Operating Temperature	0°C to +60°C
Memory	48 KB - 512 KB
Dimensions	40 x 125 x 130 mm (varies by model)