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Reference Manual
00809-0200-4410, Rev BA
Section 3: Mounting and connection
February 2014
Mounting and connection
3.4
Connections
3.4.1
Grounding
The DIN rail should always be grounded in accordance with national and local electrical codes.
The most effective grounding method is a direct connection to earth ground with minimal
impedance. Grounding to the Gateway is accomplished through the DIN rail clip on the back of
the Gateway.
3.4.2
Ethernet
The Gateway is equipped with two 10/100 base-TX Ethernet communications ports (see
Figure
3-5 on page 23
). These connections can be used to access the Gateway’s web interface and to
communicate Modbus TCP, OPC, and EtherNet/IP protocols.
The primary Ethernet port (Ethernet 1) is used to connect to the host system or other
application systems. The secondary Ethernet port (Ethernet 2) can be used as a back up
connection or a maintenance port for local access to the Gateway.
Note
Unless dual Ethernet ports were specified at the time of order, the secondary Ethernet port
(Ethernet 2) will not be active.