Configuring
4.11 Planning subnets
S7-300, CPU 31xC and CPU 31x: Installation
4-58
Operating Instructions, Edition 08/2004, A5E00105492-05
Installation guidelines
PROFINET allows you to set up a high-performance and continuous communication system.
You can further increase performance by using the following installation guidelines.
•
Interconnect a router between the office network and the PROFINET system. Use the
router to define access privileges for your PROFINET system.
•
Set up your PROFINET in a star architecture where this is useful (for example: in a switch
cabinet).
•
Keep the number of switches low. This increases clarity of your PROFINET system
architecture.
•
Connect your programming device (PG) close to the communication partner (for example:
connect the PG and the communication partner to the same switch).
•
Modules with PROFINET interfaces may only be operated in LANs where all nodes are
equipped with SELV/PELV power supplies or protection systems of equal quality.
•
A data transfer device that ensures this safety must be specified for the coupling to the
WAN.
Reference
For detailed information on Industrial Ethernet networks or network components, refer to:
•
the Internet URL http://www.siemens.com/automation/service&support.
•
The STEP 7 Online Help. There you can also find further information on IP address
assignment.
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The Communication with SIMATIC (EWA 4NEB 710 6075-01) manual
•
The SIMATIC NET manual: Twisted-Pair and Fiber Optic Networks
(6GK1970-1BA10-0AA0)