Configure switches – Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module User Manual
Page 17
 
Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
17
About the Module
Chapter 1
Configure Switches
Before installing the module, you must set the network type switches for DH+ or 
RIO, depending on your application. For a channel configured as DH+, you 
must also select a node address within the range of 00-77. Node addresses are set 
and displayed in octal.
Set the network type and node address switches as shown in the Figure.
IMPORTANT
If your module uses the 230k DH+ network (that is Channel A switch set to 
3), Channel B is disabled.
Also, node address switches do not apply if you are using remote I/O.
Network type 
switches (behind 
cover)
20810
Node type 
switches (behind 
cover)
This example shows channel A 
set for DH+ and channel B set 
RIO
This example shows the channel A node 
address at 010 and channel B at 024
Specify Network Type
Set Switch
Channel
A
DH+ - 57.6K
0
RIO Scanner
1
DH+ - 115K
2
DH+ - 230K
(Only channel A supports 230K
DH+. Channel B is disabled in this
mode.)
3
Not used
4-7
Channel
B
DH+ - 57.6K
0
RIO Scanner
1
DH+ - 115K
2
Not used
3-7
These node switches are not used with RIO.