Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 96)

96 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 5 Communication Networks
Figure 13 - ControlLogix DH+ Network Communication Example
Communicate Over a DH+ Network
For the controller to communicate to a workstation or other device over a
DH+ network, use RSLinx Classic software to do the following:
• Specify a unique link ID for each ControlLogix backplane and additional
network in the communication path.
• Configure the routing table for the 1756-DHRIO or 1756-DHRIOXT
module.
The 1756-DHRIO or 1756-DHRIOXT module can route a message through
up to four communication networks and three chassis. This limit applies only to
the routing of a message and not to the total number of networks or chassis in a
system.
For more information to configure and use a DH+ network via the
1756-DHRIO or 1756-DHRIOXT module, see the Data Highway Plus-
Remote I/O Communication Interface Module User Manual, publication
1756-UM514 .
SLC™ 500
DH+ Network
Data Collection and Recipe
Management
PLC-5
ControlLogix ControlLogix
DH+ Network
RSView® SLC 500 PLC-5 RSView
Workstation
EtherNet/IP Network