Rockwell Automation Publication 1756-UM004A-EN-P - March 2019 19
Connect to the EtherNet/IP Network Chapter 2
If the settings are a valid number, these conditions result:
• IP address = 192.168.1.xxx (where xxx represents the switch settings)
• Subnet mask = 255.255.255.0
• Gateway address = 0.0.0.0
• The module does not have a host name that is assigned to it, nor does it
use any Domain Name System
We recommend that you set the rotary switches to a valid number before
installing the module.
If the rotary switches are not set to a valid number, the module attempts to use
the BOOTP/DHCP server to set the IP address.
Other Methods to Set the IP
Address
The 1756-EN4TR module supports the following additional methods to
change the IP address:
• BOOTP/DHCP utility
• RSLinx® Classic software
• Using Secure Digital Card
• For more information on how to use these methods, see EtherNet/IP
Network Configuration Manual, publication ENET-UM006
.
Reset the Module IP Address
to Factory Default Value
You can reset the configuration of the module to its factory default value with
the following methods:
• If the module has rotary switches, set the switches to 888 and cycle
power.
TIP Some modules now provide a gateway address of 192.168.1.1 when the
network address is set with rotary switches.
IMPORTANT For more information on how to use the BOOTP/DHCP server to set the IP
address, see EtherNet/IP Network Configuration Manual,
publication ENET-UM006
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