Publication 1756-UM514B-EN-P - February 2003
7-4 Messaging Between ControlLogix Controllers
Set the Module Switches
In this application, Channel A on the first and last 1756-DHRIO
modules must be set for DH+. Both channels on the second
1756-DHRIO module must both be set for DH+.
For more information on setting switches on the 1756-DHRIO module,
see
page 1-5.
Configure Message Instructions
Use RSLogix 5000 to configure the ControlLogix controller message
instructions.
Figure 7.2 shows the message instructions necessary for
this example.
Figure 7.4
For more information on how to configure message instructions using
RSLogix5000, see
page 3-15 or the RSLogix 5000 online help.
Chapter Summary and
What’s Next
In this chapter, you learned about messaging between ControlLogix
controllers.
Chapter 8 describes the Using the 1756-DHRIO Module in
Remote I/O Applications.
IMPORTANT
When you are using the 1756-DHRIO for CIP
messaging, there are no link ID numbers. You must
use an explicit message path. For more information
on determining the path, see
page 3-20.
1
2
See Logix5000 Controllers
General Instructions Reference
Manual, publication 1756-RM003
Configuration tab Communication tab
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