Rockwell Automation 1768-L45S Compact GuardLogix Controllers - Manual (Page 47)

Rockwell Automation Publication 1768-UM002C-EN-P - April 2012 47
Communicate over Networks Chapter 4
EtherNet/IP Connections for CIP Safety I/O Modules
CIP Safety I/O modules on EtherNet/IP networks are added to the project
under the EtherNet/IP communication module as described in
Chapter 5 , Add,
Configure, Monitor, and Replace CIP Safety I/O . When you add a CIP Safety
I/O module, RSLogix 5000 software automatically creates controller-scoped
safety data tags for that module.
Figure 9 - 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 Compact
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 Compact GuardLogix
controller project.
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.