Siemens Simatic S7-300 CPU 31xC Series Installation And Operating Instructions Manual page 82

Configuring
4.11 Planning subnets
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
• Set up your PROFINET in a star architecture where this is useful (for example: in a switch
• Keep the number of switches low. This increases clarity of your PROFINET system
• Connect your programming device (PG) close to the communication partner (for example:
• Modules with PROFINET interfaces may only be operated in LANs where all nodes are
• A data transfer device that ensures this safety must be specified for the coupling to the
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
• The Communication with SIMATIC (EWA 4NEB 710 6075-01) manual
• The SIMATIC NET manual: Twisted-Pair and Fiber Optic Networks
4-58
router to define access privileges for your PROFINET system.
cabinet).
architecture.
connect the PG and the communication partner to the same switch).
equipped with SELV/PELV power supplies or protection systems of equal quality.
WAN.
assignment.
(6GK1970-1BA10-0AA0)
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05