Rockwell Automation 1769-L32C_L35CR CompactLogix Controller Installation Instructions - Manual (Page 10)

10 1769-L32C, 1769-L35CR CompactLogix Controller
Publication 1769-IN070C-EN-P - May 2008
• A 1769-ECR right end cap or 1769-ECL left end cap is required to
terminate the end of the communication bus.
Set the Node Address
Every ControlNet network requires at least one module that can store
parameters and configure the network with those parameters upon startup.
The CompactLogix controller is called a keeper because it keeps the network
configuration.
The CompactLogix controller can keep the network parameters at any legal
node address (01…99). Multiple devices on any one network can act as the
network keepers. Each device capable of being the network keeper acts to
back up the current keeper. This back-up function is automatic and requires
no action on your part.
Node address switches are set to the 99 position at shipment, as shown in the
figure.
Use these steps to set the node address.
ATTENTION
This controller has a network access port (NAP) for temporary connections to
the ControlNet network. Do not plug a DH-485 network cable or an RJ45
connector for EtherNet/IP networks into the NAP. Undesirable behavior and/or
damage to the port may result.
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