# Device connection is overloading like crazy **URL:** \ **Category:** Ignition\ **Created:** [January 22, 2026, 10:35pm UTC](https://forum.inductiveautomation.com/t/device-connection-is-overloading-like-crazy/113500 "2026-01-22T22:35:32Z")\ **Posts on this page:** 1\ **Showing post:** 13
**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:** [January 26, 2026, 9:13pm UTC](https://forum.inductiveautomation.com/t/device-connection-is-overloading-like-crazy/113500/13 "2026-01-26T21:13:09Z")
> [@k.jin](#): > > One of the bigger UDT is about 150kb in size but there are few other biggish UDTs routed through the same device. I just noticed this. Very large UDTs will create odd statistics, and may not be counted correctly by the Logix driver. You should avoid UDTs much larger than the connection buffer size. It is vitally important that everything in a single tag in the PLC be scanned at the same pace by the tag groups, or you will get multiple requests for the same UDT to satisfy different parts of it. You should read all of this topic and the cross linked topics: > [@Ignition & Logix Best Practice Tips for better communications](https://forum.inductiveautomation.com/t/ignition-logix-best-practice-tips-for-better-communications/60386): > > Hi All, After a whole bunch of issues I have gone down the rabbit hole of what is wrong with our setup on site. I will preface this by saying I a relatively new to all of this.... so be gentle stuck_out_tongue Based on much reading(such wow) I believe I have a list of things our site could take away for a better system. Some of them are easy to implement, whilst some of them need... significant work to realize. Especially the AOI approach in point 5 expressionless Before going too far a… --- _[View the full topic](https://forum.inductiveautomation.com/t/device-connection-is-overloading-like-crazy/113500)._