Siemens SIMATIC NET S7-CPs Configuring And Installing page 20

1 Communication via Ethernet CPs in S7 Stations
1.1 Industrial Ethernet
Definition
Within the open, heterogeneous SIMATIC NET communication system, Industrial
Ethernet is the network for the management and cell level. Physically, Industrial
Ethernet is an electrical network that uses a shielded coaxial cable or twisted pair
or an optical network with fiber-optic cables.
Industrial Ethernet is defined by the international standard IEEE 802.3.
All-round communication in the industrial sector
Industrial Ethernet is integrated in the SIMATIC NET concept that allows
comprehensive networking of the management, cell and field levels along with
PROFINET / PROFIBUS and the AS-Interface (AS-i).
Figure 1-1
Network access
Industrial Ethernet is accessed using the CSMA/CD (Carrier Sense Multiple
Access with Collision Detection) network access technique specified in
IEEE 802.3.
A−20
Industrial
Ethernet
(IEEE 802.3)
PROFIBUS
(EN 50170 Vol. 2 PROFIBUS)
AS-Interface
(AS-i, Actuator-Sensor
Interface)
Industrial Ethernet in the SIMATIC NET concept
S7-CPs for Industrial Ethernet Configuring and Commissioning
PROFINET
Release 07/2010
C79000−G8976−C182−10