Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 76)

76 Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Chapter 5 Messaging Between PLC-5 and SLC 5/04 Controllers
Configure Message Instructions
Use RSLogix 5 software to configure the remote PLC-5 message instructions
being sent to ControlLogix controller B, as shown in the following figure.