Rockwell Automation 1747-AENTR SLC to EtherNet/IP Adapter Installation Instructions - Manual (Page 8)

8 SLC 500 EtherNet/IP Adapter
Publication 1747-IN521B-EN-E - January 2013
Set the Network Address
The network address switches are set to 999 and DHCP enabled, by default. You can set the
network Internet Protocol (IP) address in the following ways:
•
Use the network address switches on the module.
•
Use a Dynamic Host Configuration Protocol (DHCP) server, such as
Rockwell Automation BootP/DHCP.
•
Retrieve the IP address from nonvolatile memory .
The adapter reads the network address switches first to determine if the switches are set to a valid
number. You set the node address by using the network address switches. Valid settings range
from 001…254.
When the switches are set to a valid number, the adapter’s IP address is 192.168.1.xxx (where xxx
represents the number set on the switches).
The adapter’s subnet mask is 255.255.255.0 and the gateway address is set to 0.0.0.0. The adapter
does not have a host name assigned, or use any Domain Name System when using the network
address switch settings.
If the switches are set to an invalid number (for example, 000 or a value greater than 254
excluding 888
(1) ), the adapter checks to see if DHCP is enabled.
Refer to publication SLC Ethernet/IP Adapter User Manual, 1747-UM076 ,
for detailed information on IP address configuration.
(1) Setting the network switches to 888 restores default factory settings.
DHCP Enabled and Not Enabled
If DHCP is Then the Adapter
Enabled Asks for an address from a DHCP server. The DHCP server also assigns other Transport
Control Protocol (TCP) parameters.
The 1747-AENTR factory default is DHCP enabled. When you apply power, the module sends
a message containing its hardware address to any DHCP server on the network. The
server(s) replies by sending a message with an appropriate IP address for the adapter. The
adapter responds by acknowledging to a server that it will use the offered IP address.
Not enabled Uses the IP address (along with other TCP configurable parameters) stored in nonvolatile
memory.
When the IP address assigned to the module, as indicated in the four-character dot matrix
status display, is changed through the DHCP configuration utility, the DHCP is disabled.
When power is cycled to the device, it uses the new configuration and implements the new
IP address.