Industry Protocols - Hirschmann MACH 100 User Manual

Industry Protocols

1 Industry Protocols
For a long time, automation communication and office communication were
on different paths. The requirements and the communication properties were
too different.
Office communication moves large quantities of data with low demands with
respect to the transfer time. Automation communication moves small
quantities of data with high demands with respect to the transfer time and
availability.
While the transmission devices in the office are usually kept in temperature-
controlled, relatively clean rooms, the transmission devices used in
automation are exposed to wider temperature ranges. Dirty, dusty and damp
ambient conditions make additional demands on the quality of the
transmission devices.
With the continued development of communication technology, the demands
and the communication properties have moved closer together. The high
bandwidths now available in Ethernet technology and the protocols they
support enable large quantities to be transferred and exact transfer times to
be defined.
With the creation of the first optical LAN to be active worldwide, at the
University of Stuttgart in 1984, Hirschmann laid the foundation for industry-
compatible office communication devices. Thanks to Hirschmann's initiative
with the world's first rail hub in the 1990s, Ethernet transmission devices such
as switches, routers and firewalls are now available for the toughest
automation conditions.
The desire for uniform, continuous communication structures encouraged
many manufacturers of automation devices to come together and use
standards to aid the progress of communication technology in the automation
sector. This is why we now have protocols that enable us to communicate via
Ethernet from the office right down to the field level.
UM IndustProtocol
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Release 9.0 02/2015