Rockwell Automation 1788-CNFR ControlNet Daughtercard Installation Instructions - Manual (Page 4)

4 ControlNet Daughtercard
Publication 1788-IN005A-EN-P - March 2001
About the Daughtercards
The network daughtercard architecture defines a common
hardware and software interface that several different
network interface cards will support. This lets products that
have been designed to support the network daughtercard
option to support several different Rockwell Automation
networks.
About the ControlNet Daughtercard
You can install the 1788-CNF or -CNFR ControlNet daughtercard in any host device
that supports the ControlNet daughtercard 1 .
Every ControlNet network requires at least one module that is able to store
parameters and configure the network with those parameters upon start-up. This
module is called a ‘keeper’ since it keeps the network configuration.
Any 1788-CNF or -CNFR card can keep the network parameters at any legal node
address (01 to 99). Multiple devices on any one network can act as the network
keeper. Each device capable of being the network keeper acts to back up the
current keeper. This backup function is automatic and requires no action on your
part.
1. The host device must provide a suitable power source per the restrictions in the specifications table.
IMPORTANT
On the 1788-CNF or -CNFR card, the non-volatile keeper data is
erased when a firmware update is performed.
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