16 Rockwell Automation Publication CNET-IN005A-EN-P - May 2011
Chapter 1 Install a 1756 ControlNet Communication Module
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/B, 1756-CN2R/B, and 1756-CN2RXT 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 a 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.
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