Allen-Bradley 1756-DHRIO - DH+ Messaging: SLC-5;04 to a ControlLogix Controller With Multiple ControlLogix Chassis

Publication 1756-UM514B-EN-P - February 2003
Messaging Between PLC-5s or SLC5/04s and ControlLogix Controllers 5-9
DH+ Messaging: SLC-5/04
to a ControlLogix Controller
With Multiple ControlLogix
Chassis
This application sends a DH+ message from SLC-5/04 processor A
through a 1756-DHRIO module in ControlLogix system #1 to a
1756-DHRIO module in ControlLogix system #2 to ControlLogix
controller B. Remote DH+ messaging is required to send the message.
Figure 5.9 illustrates the steps you must use in this application:
Figure 5.9
SLC-504 processor A
Node number: 050
DH+ link
Link ID 1
41286
Set the Module
Switches
page 5-10
Set-Up Routing
Table
page 5-10
Configure Msg
Instruction
s
page 5-11
Channel A
Node number: 010
ControlNet link
Link ID 2
This can be Ethernet, ControlNet or DH+.
ControlLogix system #1 ControlLogix system #2
1756-CNB
Node number: 23
ControlLogix controller
slot number: 0
1756-CNB
Node number: 22
1756-DHRIO
123
System #2 Backplane
Link ID 3