Rockwell Automation 1791ES-IB16 Guard I/O EtherNet/IP Safety Modules - Manual (Page 36)

36 Rockwell Automation Publication 1791ES-UM001D-EN-P - May 2013
Chapter 3 Install and Connect Your Modules
To set the network address, you can:
• adjust the switches on the front of the module.
• use a Dynamic Host Configuration Protocol (DHCP) server, such as
Rockwell Automation BootP/DHCP Server Utility.
• retrieve the IP address from nonvolatile memory.
The module reads the switches first to determine if the switches are set to a valid
number. You set the network address by adjusting the three switches on the front
of the module. Use a small-blade screwdriver to rotate the switches. Line up the
small notch on the switch with the number setting you wish to use. Valid settings
range from 001…254.
When the switches are set to a valid number, the module’s IP address is
192.168.1.xxx (where xxx represents the number set on the switches). The
module’s subnet mask is 255.255.255.0 and the gateway address is set to 0.0.0.0.
When the module is reading the network address set on the switches, the module
does not have a host name assigned to it or use any Domain Name System.
If the switches are set to an invalid number (such as 000 or a value greater than
254), the module checks to see if DHCP is enabled. If DHCP is enabled, the
module asks for an address from a DHCP server. The DHCP server also assigns
other transport control protocol (TCP) parameters.
If DHCP is not enabled, the module uses the IP address (along with other TCP
configurable parameters) stored in nonvolatile memory.
Figure 15 - Example Network Address
Connect I/O Power and
I/O Cables See installation instructions for specifications on wire type and size.
4
2
6
8
0
X100 X1 X10
4
2
6
8
0
4
2
6
8
0
This example shows the switches set at 163
with a network address being 192.168.1.163.
IMPORTANT • Note that I/O connectors are detachable.
• Tighten the screws on the I/O connector to the specified torque settings
as shown in the installation instructions.
• Because the I/O connector has a structure that helps prevent incorrect
wiring, make connections at the specified locations corresponding to
the terminal numbers.