Siemens Simatic S7-300 Technical Data Manual page 32

Communication
3.1 Interfaces
Devices capable of PROFINET (PN) communication
• PROFINET IO components (for example, interface module IM 151-3 PN in an ET 200S)
• S7-300 / S7-400 with PROFINET interface (for example, CPU 317-2 PN/DP or
• Active network components (a switch, for example)
• PG/PC with network card
Properties of PROFINET interface X2
Properties
IEEE standard
Connector design
Transmission speed
Media
Note
Networking PROFINET components
The use of switches, rather than hubs, for networking PROFINET components brings about
a substantial improvement in decoupling bus traffic, and improves runtime performance
under higher bus load. PROFINET CBA with cyclic PROFINET interconnections requires the
use of switches in order to maintain compliance with performance specifications. Full duplex
mode at 100 Mbps is mandatory for cyclic PROFINET interconnections.
PROFINET IO also requires the use of switches and 100 Mbps full duplex mode.
Reference
• For information on how to configure the integrated PROFINET interface of the CPU, refer
• For details on PROFINET, refer to the
• For detailed information on Ethernet networks, network configuration and network
•
• Further information on PROFINET: http://www.profibus.com
See also
PROFINET IO System (Page 3-19)
3-4
CP 343-1 PN)
S7-300, CPU 31xC and CPU 31x Installation
to the
components refer to the
available under article ID 8763736 on the Internet URL
http://www.siemens.com/automation/service&support
Tutorial: Commissioning Component-Based Automation Systems
802.3
RJ45
Max. 100 Mbps
Twisted Pair Cat5 (100BASE-TX)
PROFINET System Description
SIMATIC NET Manual: Twisted Pair and Fiber Optic Networks
operating manual.
, article ID 14142554
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
,