Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 114)

114 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 6 Serial Communication on 1756-L6x Controllers
b. Specify the parameters for the protocol.
5. If you are using the User mode protocol (ASCII), click the User Protocol
tab and specify the ASCII parameters.
After you have configured the controller for ASCII protocol
communication, reference the Logix5000 Controllers General Instruction
Reference Manual, publication
1756-RM003, for the available ASCII
instructions.