User manual

44 Publication ENET-UM001I-EN-P - January 2010
Chapter 4 Configure an EtherNet/IP Module to Operate on the Network
The graphic below shows how your module’s IP address is set.
For more detailed information,
see the table below .
Module power-up
Module using a
valid IP address
1
Module
IP address
between
001-254?
YesNo
Is DHCP or
BOOTP
enabled?
YesNo
Module requests
address from
DHCP/BOOTP server
Adapter uses IP
address stored in
nonvolatile memory
1 - If necessary, you can set the module switches to 888 to restore the IP address to the factory default value of 999. In this case, cycle power to the
module after restoring the factory default settings and begin the flowchart process again.
IP Network Address Configuration Switch Settings
If the Then
Switches are set to a valid number • The adapter’s
IP address will be 192.168.1.xxx (where xxx represents the number set on
the switches).
• The adapter’s
subnet mask will be 255.255.255.0, with the gateway address set to
0.0.0.0.
• The adapter will not have a host name assigned, or use any Domain Name System when
using the thumbwheel settings
.
Switches are set to an invalid number
• The module checks to see if DHCP or
BOOTP is enabled. If either is, the module requests
an IP address from a DHCP/BOOTP server. The DHCP/BOOTP server will also assign
other Transport Control Protocol (TCP) parameters.
• If you have used s
oftware to
preconfigure an IP address, and DHCP or BOOTP is
disabled, the module will use the configured IP address.
DHCP is not enabled • The adapter will use the IP address and any other TCP configurable parameters stored in
nonvolatile memory.
I
mportant: The factory defa
ult switch setting is 999, and DHCP is enabled.