Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM - Manual (Page 124)

Publication AG-UM008C-EN-P - February 2005
3-56 Configuring MicroLogix 1100/1200/1500 Controllers
Configuring a Modbus Message
This section describes how to configure a local message using the
Modbus communication commands. Since configuration options are
dependent on which channel is selected, the programming software
has been designed to only show the options available for the selected
channel.
Before configuring the MSG instruction, open the Channel
Configuration screen as shown below and set the Driver to Modbus
RTU Master. For more information on Channel Configuration, see
Modbus RTU Master Configuration in appendix E.
Rung 0 shows a standard RSLogix 500 message (MSG) instruction
preceded by conditional logic.
1. Access the message setup screen by double-clicking Setup Screen.
2. The RSLogix 500 Message Setup Screen appears. Use this screen to
setup or monitor message parameters for ‘This Controller’, ‘Target
Device’, and ‘Control Bits’. Descriptions of each of these sections
follow.
0000
B3:0
0
EN
DN
ER
MSG
Read/Write Message
MSG File
MG11:0
Setup Screen
MSG