Rockwell Automation 1768-CNxxx ControlNet Communication Modules - Manual (Page 18)

18 Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
Chapter 1 Install a 1756 ControlNet Communication Module
Reset the Module to the Original Factory Settings
If you are using a 1756-CN2, 1756-CN2R, 1756-CN2RXT or 1756-CN2RK
communication module, you can reset the module to its original settings and
clear all keeper information.
To reset a module to its factory settings, complete these steps.
1. Remove power from the chassis.
2. Remove the module from the chassis.
3. Reset the switches to 00.
4. Replace the module in the chassis.
5. Apply power to the chassis.
6. After the module status display reads ‘Reset Complete—Change Switch
Settings’, remove power from the chassis.
7. Remove the module from the chassis.
8. Set the switches to their final value.
9. Replace the module in the chassis.
10. Apply power to the chassis.
Keeper Configuration—Automatic Keeper Crossload
The 1756-CN2, 1756-CN2R, 1756-CN2RXT, and 1756-CN2RK
communication modules are keeper capable modules. If a keeper capable module
has a valid configuration and has the lowest address among the keeper capable
nodes on the network, it becomes the active keeper. The active keeper is the node
that distributes network configuration information to other nodes as the
network is formed or as nodes are added to the network.
When the module is first removed from the box or is reset to the original factory
settings, it will automatically attempt to crossload configuration information
from the current active keeper. If an active keeper with a valid network
configuration is present on the active network, the configuration crossload will
succeed. No user intervention is needed. However, if an active keeper does not
exist or does not have a valid network configuration, you must use RSNetWorx
for ControlNet software to download the network configuration information.
IMPORTANT Removing power from the chassis before removing the module is only
necessary if the module is in a Class I, Division 2 hazardous location.
IMPORTANT Do not use the 00 switch setting during normal module operation.