Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 118)

118 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 6 Serial Communication on 1756-L6x Controllers
Modbus Support To use ControlLogix controllers with the Modbus protocol, establish a serial port
connection and execute a ladder-logic routine.
Two controller projects specific to the Modbus network are available as sample
programs within the Logix Designer application:
• ModbusMaster.ACD
• ModbusSlave.ACD
For information about using these sample programs, see the Using Logix5000
Controllers as Masters or Slaves on Modbus Application Solution, publication
CIG-AP129 .