Configuring
4.11 Planning subnets
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
4-57
4.11.3.7 Example of a PROFINET Subnet
Example: Installation of a PROFINET subnet
The graphic illustrates the combination of corporate level and process control level via
industrial Ethernet. PCs in a classical office environment can be used to acquire data of the
process automation system.
CPU
31x-2 PN/DP
PG
ET200
(DP SLAVE)
PROFIBUS
Company network
CPU
CPU
CPU
31x-2 PN/DP
(DP master)
CPU
31x-2 PN/DP
Switch 3
Switch 1
Switch 2
Subnet 1Subnet 1 Subnet 2Subnet 2
Router
INDUSTRIAL ETHERNET
Figure 4-7 Example of a PROFINET Subnet
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