Engineering System - Siemens Automation and Drives Group

■ Overview
Industrial Ethernet is used as the bus for the SIMATIC PCS 7 process
control system. Industrial Ethernet is a powerful cell network
based on the IEEE 802.3 standard.
Note:
Detailed information on Industrial Ethenet and the bus components
can be found in the IK PI catalog, in the A&D Mall or in
CA 01 at "Communication/Networks / SIMATIC NET communication
systems".
■ Benefits
With a market share of over 80%, Ethernet is todays leading network
for LAN applications worldwide. Thanks to its characteristics,
Ethernet provides a number of significant benefits for the
user:
Fast commissioning through simple connections
High availability because existing installations can be expanded
without affecting their operation.
Virtually unlimited communications capacity through scalability
using switching technology
Networking of different application domains, such as office
and shopfloor.
Company-wide communication through connection to WAN
(wide area network), e.g. ISDN or Internet.
Investment protection through ongoing compatible development
SIMATIC NET offers major expansions of the Ethernet system for
harsh industrial environments:
Network components for use in these special environmental
conditions
Fast local assembly using the FastConnect cabling system
with RJ45 technology
Failsafe networks through high-speed redundancy
Continuous monitoring of network components using a simple
but effective signal concept
■ Technical specifications
Communication
Industrial Ethernet
Siemens ST PCS 7 · October 2004
Introduction
Plant bus / OS-LAN Industrial Ethernet
Number of stations 1,023 per network segment
(IEEE 802.3)
Length of the network
Local network Electrical: up to approx. 1.5 km
Optical: up to approx. 150 km
WAN Worldwide with TCP/IP
Topology Line, tree, ring, star, redundant
ring
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