Rockwell Automation 1756-SPESMNRMXT GuardLogix Controllers User Manual - Manuel (Page 62)

62 Rockwell Automation Publication 1756-UM020I-EN-P - August 2012
Chapter 4 Communicate over Networks
Figure 14 - Adding EtherNet/IP Modules to the Project
Standard EtherNet/IP Connections
To use a standard EtherNet/IP module with the safety controller, add the module
to the safety controller project and download the project to the GuardLogix
controller.
1. To configure the module, define the IP address, subnet mask, and gateway.
2. After you physically install an EtherNet/IP module and set its IP address,
add the module to the Controller Organizer in your GuardLogix
controller project.
3. Use RSLogix 5000 software to download the project.
EtherNet/IP
Parameter Description
IP Address The IP address uniquely identifies the module. The IP address is in the form xxx.xxx.xxx.xxx.
where each xxx is a number between 0 and 255. However, there are some values that you cannot
use as the first octet in the address:
• 000.xxx.xxx.xxx
• 127.xxx.xxx.xxx
• 223…255.xxx.xxx.xxx
Subnet Mask Subnet addressing is an extension of the IP address scheme that allows a site to use one network
ID for multiple physical networks. Routing outside of the site continues by dividing the IP
address into a net ID and a host ID via the class. Inside a site, the subnet mask is used to redivide
the IP address into a custom network ID portion and host ID portion. This field is set to 0.0.0.0 by
default.
If you change the subnet mask of an already-configured module, you must cycle power for the
change to take effect.
Gateway A gateway connects individual physical networks into a system of networks. When a node needs
to communicate with a node on another network, a gateway transfers the data between the two
networks. This field is set to 0.0.0.0 by default.