Rockwell Automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE Input and Scheduled Output Modules UM - Manual (Page 131)

Rockwell Automation Publication 1732E-UM003B-EN-E - March 2014 121
Connect to Networks via Ethernet Interface Appendix D
In order to exchange I/O data with another device on Ethernet, that device must
first originate a connection with the ArmorBlock via TCP/IP. Once an I/O
connection is established via TCP/IP the I/O data is exchanged via UDP/IP.
Duplicate IP Address
Detection The ArmorBlock module firmware supports duplicate IP address detection.
When you change the IP address or connect one of the modules to an EtherNet/
IP network, the module checks to make sure that the IP address assigned to this
device does not match the address of any other network device. The module will
periodically check for a duplicate IP address on the network. If the module
determines that there is a conflict (another device on the network with a
matching IP address), the Network Status Indicator becomes solid red.
To correct this conflict, the IP address of one of the modules will need to
changed. If you decide to change the IP address of the ArmorBlock then, assign a
unique IP address to the module then cycle power to the module.
If you decide to change the IP address of the other module, remove the device
with the incorrect IP address or correct its conflict. To get the ArmorBlock out of
conflict mode, cycle power to the module or disconnect its Ethernet cables and
reconnect the cables. If you choose to disconnect the Ethernet cables to correct
this conflict you will need to disconnect both Ethernet cables from two port
Ethernet modules at the same time.
Configure Ethernet
Communications on the
ArmorBlock module There are five ways to configure ArmorBlock module Ethernet communications.
• via a DHCP request at module powerup
• manually setting the configuration parameters using RSLogix 5000
software
• manually setting the configuration parameters using RSLinx software
• manually configuring the network settings using the embedded web server
• set the IP address of the module using the modules network address
switches. See Connecting to an Ethernet Network on page 120 .
The configuration parameters are shown in the Configuration Parameters table,
and the configuration procedures follow.
Configuration Parameters
Parameter Description Default Status
Hardware Address The ArmorBlock module Ethernet hardware address. Ethernet
hardware
address read only
IP Address The ArmorBlock module internet address (in network byte order). The internet address must be
specified to connect to the TCP/IP network. 0 (undefined) read/write