Appendix C—Optional Communication Cards
222
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
Ethernet Communication Card and DIP
Switches
When an optional Ethernet card is connected to a C445,
the DIP switches on the Base Control Module are dedicated
to determining the IP address of this card per the diagram
below.
If the C445 Base Control Module also includes the optional
RS-485 Modbus serial port, the node address and the data
rate for this port must be configured using the Web Pages or
the
in
Control Configuration Software.
DIP Switch settings on the C445 Base Control Module when
an Ethernet Card is installed.
DIP Switch 10 is reserved for future use.
Figure 132. Base Control Module DIP Switches with
Ethernet Card
Descriptions
When switch 9 is OFF:
Low Octet:
DIP Switch numbers set low octet of static IP
address 192.168.1.X where X is 0 – 253
Ethernet Port Setting
The lower 8 switches (1-7) are each given a value based on
weighted binary. If the switch second from the top (9) is Off,
the 8 lower switches are provided a value from the bottom
up as follows: 1, 2, 4, 8, 16, 32, 64, 128. The switches are
turned On when they are pushed to the right. Add the value
of all switches that are On to determine the overall value.
This value represents the low octet of the IP address
192.168.1.x. This is an easy way to configure the Ethernet
Card to a known IP address so a computer can be configured
to easily and quickly communicate with the C445 via Modbus
TCP Ethernet with the
in
Control software tool. Then, using
this tool, the C445 Ethernet Card may be configured with any
static IP address. Information on how to go online with the
C445 using the software tool and Modbus TCP may be found
in the
in
Control software user manual. The following
procedure indicates a procedure using the software tool to
set a static IP address, subnet mask and gateway address for
the C445 Ethernet Card.
1.
Set DIP Switch 9 to OFF.
2.
Set the bottom 2 DIP Switches (1-2) ON and leave the
others OFF resulting in a value of 3 and an IP address of
192.168.1.3 assigned to the Ethernet Card.
3.
Power cycle the C445 so the new DIP Switch settings
will be used.
4.
Using the
in
Control software, go online with the C445
via Modbus TCP and the Ethernet Card.
5.
Under the Communications/Ethernet categories in the
software tool, configure a static IP address, subnet mask
and gateway address. These will not take effect until a
soft reset is issued to the C445 or until it receives a
power cycle.
6.
Go offline with the C445 in the software tool.
7.
Set the DIP Switches so only the following switches are
ON: 2 and 9. The Ethernet Card will now be configured
for “NV Static IP Address”.
8.
Issue a soft reset or power cycle the C445. When it
powers up the Ethernet Card will be configured with the
static IP address, subnet mask and gateway address it
was configured for with the
in
Control software tool.
9.
This same process could be accomplished using the
USB port or the RS-485 port with the
in
Control software
tool.
