Siemens Simatic S7-300 CPU 31xC Series User Manual

Commissioning
8.6 Commissioning PROFINET IO
S7-300, CPU 31xC and CPU 31x: Installation
8-40 Operating Instructions, Edition 08/2004, A5E00105492-05
Status/control, programming via PROFINET
As an alternative to the MPI interface, you can program the CPU or execute the PG's status
and control functions via the PROFIBUSDP interface.
If you have not commissioned the PROFINET interface of the CPU yet, you can connect to
the CPU using its MAC address (see also Configuring the PROFINET IO System in the table
above).
To do so, use HW Config to download your project to the CPU. Address the CPU using its
MAC address. After you downloaded the configuration, the CPU is also assigned the set IP
address. You can now use all PG functions at the interface, for example, Load program,
Status/Control,... .

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)