Specifications

Introduction
RS2-4R
Release
1.0
03/04
1.1
Industrial networking solutions with a future
21
1.1 Industrial networking
solutions
with a future
Ethernet is the most widely used communication technology for IT systems.
In the office environment, Ethernet has evolved into the standard technology.
However, it is also gaining ground in the area of industrial automation. Apart
from the advantages of being a standardized means of communication, it
also offers a seamless infrastructure that extends from the office to the
machine or to the sensor. This not only makes process and production data
available on the field level but also provides this data directly to general data
entry systems.
Although the Ethernet standard used in automation technology is the same
as that used in offices, the requirements for network products are consider
-
ably different. In day-to-day industrial applications, networks are expected to
work reliably under extreme conditions, such as electromagnetic interfer
-
ence, high operating temperatures and mechanical loads.
The Industrial ETHERNET Rail family was specifically designed for use in in-
dustrial automation applications, taking all these requirements into consider-
ation. A result of these requirements is the redundant "ETHERNET Ring"
developed by Hirschmann. This process enables continuous production op
-
eration, even when a reconfiguration of the network is necessary. The "ETH-
ERNET Ring" also allows networks to be maintained and expanded while still
in operation. Since the system is reconfigured in a matter of milliseconds, the
"ETHERNET Ring" is considerably
better suited to industrial use than the
'spanning tree' algorithm, which
primarily meets the needs of office systems.
This process and other concepts from Hirschmann ensure ultimate network
and production system reliability. The
increased segmentation of the Indus-
trial ETHERNET Rail products allow you to adapt your network to the specific
geographical layout and security-related considerations
in a more efficient
matter
. This scalability also ensures the network will meet all future
requirements.