# UDT Tags Not Updating Consistently for Modbus TCP Devices **URL:** \ **Category:** Ignition\ **Tags:** modbus\ **Created:** [April 11, 2025, 12:15pm UTC](https://forum.inductiveautomation.com/t/udt-tags-not-updating-consistently-for-modbus-tcp-devices/104994 "2025-04-11T12:15:13Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 11, 2025, 12:34pm UTC](https://forum.inductiveautomation.com/t/udt-tags-not-updating-consistently-for-modbus-tcp-devices/104994/2 "2025-04-11T12:34:24Z")
Consider discarding your address mappings. It makes it hard to help you. Construct your UDTs with an address offset parameter that can be included in manually constructed OPC Item Paths. My Spreadsheet Import Tool in the Ignition Exchange has some modbus UDT examples of this approach, and is far more capable than the multi-instance wizard: > [@Spreadsheet Import Tool](https://forum.inductiveautomation.com/t/spreadsheet-import-tool/93500): > > Now [in the Ignition Exchange](https://inductiveautomation.com/exchange/2660/overview). While waiting on IA review, i Interested parties can also get this here: [https://www.automation-pros.com/SpreadsheetImportTool/](https://www.automation-pros.com/SpreadsheetImportTool/) I intend to publish at this link as well as in the Exchange going forward. Announcements will be in this topic. (: --- _[View the full topic](https://forum.inductiveautomation.com/t/udt-tags-not-updating-consistently-for-modbus-tcp-devices/104994)._