Rockwell Automation 1768-L45S Compact GuardLogix Controllers - Manual (Page 48)

48 Rockwell Automation Publication 1768-UM002C-EN-P - April 2012
Chapter 4 Communicate over Networks
ControlNet Communication For ControlNet communication, choose a 1768-CNB module, series A,
revision 3 or later.
These software products are available for ControlNet networks.
The ControlNet communication modules provide the following:
• Support for messaging, produced/consumed safety and standard tags, and
distributed I/O
• They support the use of coax and fiber repeaters for isolation and increased
distance.
Producing and Consuming Data via a ControlNet Network
The Compact GuardLogix controller supports the ability to produce (send) and
consume (receive) tags over ControlNet networks. The total number of tags that
can be produced or consumed is limited by the number of available connections
in the Compact GuardLogix controller.
Connections over the ControlNet Network
The number of connections the controller uses is determined by how you
configure the controller to communicate with other devices in the system.
Connections are allocations of resources that provide more reliable
communication between devices compared to unconnected messages.
Table 6 - Software for ControlNet Modules
Software Purpose Required
RSLogix 5000 programming
software This software is required to configure the GuardLogix project and
define ControlNet communication. Yes
RSNetWorx for ControlNet
software This software is required to configure the ControlNet network, define
the network update time (NUT), and schedule the ControlNet
network. Yes
RSLinx software You can use this software to configure devices, establish
communication between devices, and provide diagnostics. Yes