
Ladder Logic MVI69-MCM ♦ CompactLogix or MicroLogix Platform
User Manual Modbus Communication Module
Page 80 of 167 ProSoft Technology, Inc.
March 22, 2011
The Input Words and Output Words parameters will depend on the Block
Transfer Size parameter you specify in the configuration file. Use the values
from the following table.
Block Transfer Size Input Words Output Words
60 62 61
120 122 121
240 242 241
5 Click OK
to continue.
6 After completing the module setup, the I/O Configuration dialog box will
display the module's presence.
The last step is to add the ladder logic. If you are using the example ladder logic,
adjust the ladder to fit your application. Refer to the example Ladder Logic
section in this manual.
Download the new application to the controller and place the processor in RUN
mode. If you encounter errors, refer to Diagnostics and Troubleshooting (page
81) for information on how to connect to the module's Config/Debug port to use
its troubleshooting features.
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