1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

430 Communications InstructionsExample 4 - Configuring a Modbus MessageThis section describes how to configure a local message using theModbus communication commands. Since configuration options aredependent on which channel is selected, the programming software hasbeen designed to only show the options available for the selectedchannel.Before configuring the MSG instruction, open the Channel Configurationscreen and set the Driver to Modbus RTU Master. For more informationon Channel Configuration, see Modbus RTU Master Configuration onpage 612.Message Setup ScreenRung 0 shows a standard RSLogix 500/RSLogix Micro message (MSG)instruction preceded by conditional logic.1. Access the message setup screen by double-clicking Setup Screen.2. The RSLogix 500/RSLogix Micro Message Setup Screen appears.This screen is used to setup or monitor message parameters for“This Controller”, “Target Device”, and “Control Bits”. Descriptionsof each of these sections follow.Publication 1766-RM001A-EN-P - October 2008