Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module User Manual
Page 80
80
Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Chapter 6
Messaging Between PLC-5 or SLC 5/04 Controllers and ControlLogix Controllers
DH+ Messaging: PLC-5
Controllers to One
ControlLogix Controller with
One ControlLogix Chassis
This application sends a DH+ message from PLC-5/60 controller A through a
1756-DHRIO or 1756-DHRIOXT module to ControlLogix controller B.
Local DH+ messaging can be used to send the message.
The following figure illustrates the steps you must use in this application.
IMPORTANT
Local DH+ messaging can send only DH+ messages to one ControlLogix
controller per DH+ channel. See the application on page
if you want to
send DH+ messages to multiple ControlLogix controllers in the chassis.
1756-DHRIO
Slot Number: 3
PLC-5/60 Controller A
Node Number: 005
DH+ Link
Link ID 1
41283
Channel A
Node Number: 010
ControlLogix Controller
Slot number: 1
IMPORTANT
For this application, the 1756-DHRIO and 1756-DHRIOXT modules need
only a controller slot programmed if the ControlLogix controller is not in the
default slot (0) of the ControlLogix chassis.