Siemens ST PCS 7 User Manual
Communication
Industrial Ethernet
Introduction
9/3
Siemens ST PCS 7 · November 2007
9
■
Overview
Industrial Ethernet, connection examples
The plant bus and the OS-LAN (terminal bus) for multi-user
systems with client/server architecture are implemented with
Industrial Ethernet, a powerful area and cell network for indus-
trial applications in line with the international IEEE 802.3 stan-
dard (Ethernet). Bus structures with optical rings are particularly
suitable for this because of their high noise immunity and high
availability.
In medium-sized and large plants characterized by high
In medium-sized and large plants characterized by high
requirements, SIMATIC PCS 7 applies modern Gigabit and
FastEthernet technology. This combines the high reliability of op-
tical rings with the scalable performance of switching technol-
ogy and high transmission rates up to 1 Gbit/s.
■
Benefits
Ethernet currently has a market share of over 80% with a ten-
dency to rise further, thus placing it in pole position in the global
LAN landscape. Ethernet offers important characteristics that
can give you significant advantages for your application:
7
Fast commissioning through simple connections
7
High flexibility since existing networks can be extended with-
out any adverse effects
7
High availability thanks to redundant network topologies
7
Almost unlimited communications performance because scal-
able performance is available through switching technology if
required
7
Networking of different application areas such as office and
production areas
7
Investment protection through continuous and compatible fur-
ther development
7
Plant-wide clock system permits exact assignment of events
within the complete plant
Ethernet technology for industrial environment
With Industrial Ethernet, SIMATIC NET expands the Ethernet
technology by special components and capabilities for use in in-
dustrial environments:
7
Network components for tough industrial environments
7
Fast local assembly using the FastConnect cabling system
with RJ45 technology
7
Failsafe networks with fast switchover to redundant system
(
≤
300 ms)
7
Continuous monitoring of network components through a sim-
ple yet effective signaling concept
7
Future-oriented network components with the SCALANCE X
Ethernet product family
SIMATIC
PCS 7 BOX
PCS 7 BOX
AS 414/
AS 416/
AS 417
AS 416/
AS 417
AS 412H/
AS 414H/
AS 417H
AS 414H/
AS 417H
AS 412H/
AS 414H/
AS 417H
AS 414H/
AS 417H
OSM/
ESM
ESM
SCALANCE
X-200/
X-200 IRT
X-200/
X-200 IRT
SCALANCE
X-200/X-200 IRT
SCALANCE X-400
SCALANCE X-400
SCALANCE
X-400
SCALANCE
W788-1PRO
W788-1PRO
OS-LAN
(terminal bus,
optical/electrical)
OS clients
Plant bus
Industrial Ethernet
(optical/electrical)
Remote
client
client
Redundant
OS servers
OS servers
Engineering
station
station
© Siemens AG 2007