SEW-Eurodrive MOVIPRO Ethernet/IP - Shielding and Routing Bus Cables

5
Installation notes
Industrial Ethernet networks
Manual – MOVIPRO
®
with EtherNet/IP™ or Modbus/TCP Fieldbus Interface
28
Exemplary standard gateway: 192.168.10.1
The standard gateway establishes a connection to other networks. A network node
that wants to address another node uses a logical AND operation of the IP address
and subnet mask to determine whether the node is in the same network. If this is not
the case, the network node addresses the standard gateway (router), which must be
part of the actual network. The standard gateway then takes on the job of transmitting
the data packages.
DHCP (Dynamic Host Configuration Protocol)
Instead of setting the 3 parameters IP address, subnet mask and standard gateway
manually, they can be assigned automatically by a DHCP server in the Ethernet net-
work.
The IP address is assigned based on a table in the DHCP server. The table contains
an assignment of MAC addresses to IP addresses.
5.1.2 Shielding and routing bus cables
NOTICE
Risk of a compensating current flowing as a result of incorrect bus cable type, im-
proper shielding and/or improperly routed bus cables.
Possible damage to property.
• In case of fluctuations in the ground potential, a compensating current may flow
via the bilaterally connected shield that is also connected to the protective earth
(PE). Make sure you supply adequate equipotential bonding in accordance with
relevant VDE regulations in such a case.
Only use shielded cables and connection elements that meet the requirements of cat-
egory 5, class D according to IEC11801 edition 2.0.
Correct shielding of the bus cable attenuates electrical interference that can occur in
industrial environments. The following measures ensure the best possible shielding:
• Manually tighten the mounting screws on the connectors, modules, and equipoten-
tial bonding conductors.
• Use only connectors with a metal housing or a metalized housing.
• Connect the shielding in the connector over a wide surface area.
• Apply the shielding of the bus cable on both ends.
• Route signal and bus cables in separate cable ducts. Do not route them parallel to
power cables (motor leads).
• Use metallic, grounded cable racks in industrial environments.
• Route the signal cable and the corresponding equipotential bonding close to each
other using the shortest possible route.
• Avoid using plug connectors to extend bus cables.
• Route the bus cables closely along existing grounding surfaces.
16998413/EN – 12/2016