Allen-Bradley 1756-DHRIO - DH+ Messaging: PLC-5 s With Multiple ControlLogix Chassis

Publication 1756-UM514B-EN-P - February 2003
4-8 Messaging Between PLC-5s and SLC-5/04s
DH+ Messaging: PLC-5s
With Multiple ControlLogix
Chassis
This application sends a DH+ message from PLC-5 processor A
through 1756-DHRIO modules in separate chassis over ControlNet to
PLC-5 processor B. Remote DH+ messaging is required to send
the message.
Figure 4.7 illustrates the steps you must use in this application:
Figure 4.7
ControlLogix system #1
1756-DHRIO1756-DHRIO
PLC-5/25 processor A
Node number: 015
DH+ link
Link ID 1
PLC-5/25 processor B
Node number: 035
19769
ControlLogix system #2
This can be Ethernet,
ControlNet or DH+
Set Module
Switches
page 4-9
Set -Up
Routing Tables
page 4-10
Configure Msg
Instructions
page 4-11
Channel A
Node number: 010
Channel B
Node number: 030
ControlNet
Link ID 2
DH+ link
Link ID 3
1756-CNB
Node number: 22
1756-CNB
Node number:23
12 3