Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 41)

Rockwell Automation Publication 1756-UM514C-EN-P - June 2014 41
Installing the Modules Chapter 3
If the network type is DH+, you must also set the node address switches
for that channel.
For each channel, you can select a node address within the range of 00…77.
4. Determine module slot location.
This example shows chassis slot numbering in a 4-slot chassis. Slot 0 is the first
slot and is the left most slot in the rack (the first slot to the right of the power
supply). You can use any size ControlLogix chassis and install the module in any
slot.
You can use multiple 1756-DHRIO or 1756-DHRIOXT modules in the same
chassis.
Install the Module Follow these steps to install the module.
1. Align the circuit board wit the top and bottom guides in the chassis.
2. Slide the module into the chassis.
3. Make sure the module backplane connector properly connects to the
chassis backplane.
If you are replacing a module with an identical one, and you want to resume
identical system operation, you must install the new module in the same slot.
IMPORTANT If you are using the remote I/O network, do not set node address switches.
Slot 0
43235
Slot 1
Slot 2
Slot 3
POWER
Circuit Board
43236