Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 16)

16 Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Chapter 1 About the Module
Module Features The figure shows the external features of the 1756-DHRIO and
1756-DHRIOXT modules.
Other module features include the following:
• Routing table that enables DH+ devices to use the modules and
ControlLogix chassis to access other networks
• Routing communication to and from other modules
• No limit on number of modules per chassis, to the total number of
available slots and the capabilities of the power supply
• Can be removed and inserted under power without disrupting power to
other modules in the chassis
41278
Network Type switches
(behind cover)
41277
Network Address switches
(behind cover)
Backplane
connector
(CIP=Port 1)
Side
view Front
view
Alphanumeric
status indicator
Channel and
module status
indicators
8-pin Mini-DIN
Programming
Terminal
Channel A
(CIP=Port 2)
Wiring
label
Door
Channel B
(CIP=Port 3)