Siemens Simatic S7-300 CPU 31xC Series User Manual

Commissioning
8.6 Commissioning PROFINET IO
S7-300, CPU 31xC and CPU 31x: Installation
8-34 Operating Instructions, Edition 08/2004, A5E00105492-05
Example: Direct data exchange via DP CPUs
The example in the figure below shows the relationships you can configure for direct data
exchange. The figure shows all DP masters and all DP slaves each as one DP CPU. Note
that other DP slaves (ET 200M, ET 200X, ET 200S) can only operate as sending node.
CPU
DP master 1
PROFIBUS
CPU
DP slave 3
DP slave 5
CPU
DP slave 1
DP master
system 1
DP master
system 2
CPU
DP master 2
CPU
DP slave 2
CPU
DP slave 4
8.6 Commissioning PROFINET IO
8.6.1 Requirements
Requirements
Requirements to be satisfied before you can start to commission your PROFINET IO system:
• You are using a CPU 31x-2 PN/DP with FW version 2.3.0 or higher.
• STEP 7 V 5.3 + SP 1 or higher is installed.
• A PROFINET IO system is installed.

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)