Automation Canada - Automation in 2021 - 16

COMPACT AND AFFORDABLE
Since the beginning of 2019, Murrelektronik switches have been
installed in HandlingTech's standard robot cells. The " door openers "
were the Xelity 8 port unmanaged switches. Push-in terminals for the
power connection simplify the wiring of the individual switches. The
devices prioritize PROFInet protocols and thus prefer PROFInet data
over Ethernet data. Xelity switches can transfer data packets at speeds of
up to 100 Mbit/s.
Henning Schultz, electrician and electrical designer in the production
department at HandlingTech, was sold on Xelity switches literally at first
sight: " The compact design of the Xelity 8 port is super. Their small size
allows them to fit easily next to a power supply, contactor or relay
without having to create extra space on the DIN rail or in the cable ducts.
I also find the push-in terminals very practical as many competitors still
have an additional plug with screw caps, which complicates the
connection. Size, feel, function and price of the Xelity switches make
them a well-rounded product. "
Not only are new plants are equipped with the Xelity switches, but
older ones are as well during retrofitting. Many older plants have
Ethernet as the standard are not yet equipped with a bus system
CANADIAN AUTOMATION
therefore HandlingTech's electrical engineers have repeatedly
integrated these switches during retrofits at the customer's request.
Nancy Locher, Murrelektronik sales engineer, adds " In a retrofit, space is
oſten the limiting factor. The compactness of Xelity switches is a big
advantage here. "
TWO SWITCHES PER SYSTEM
Henning Schultz: " We provide two Xelity switches standard for each
robot cell in order to separate Ethernet and PROFInet whenever
possible. Even if only four or five ports are occupied - in the highest
expansion stage, we need all of them. It is also important for us, as well
as for the control cabinet builders, to have a certain design standard.
Murrelektronik switches are now part of almost every installation of
ours. "
The industrial PC, the robot, and the safety and remote maintenance
systems are connected to the switch via an Ethernet TCP/IP interface on
the outside of the control cabinet so that it does not have to be opened
for service work. This means that the majority of the ports are occupied,
leaving one or two ports as a reserve, for measuring tasks in the cell.
VOLUME 3, ISSUE 4
17
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