Please download the Modbus TCP AOI for ControlLogix/CompactLogix directly from rockwellautomation.com

To find it, visit the webpage "rockwellautomation.com/search" then type "modbus tcp" in the search box and click search

click on the "sample code" search results tab

click the Modbus TCP Add-On instructions for ControlLogix and CompactLogix controllers, AOI Version 2.04.00 (or more recent version) to begin the download
