# Modbus data good in quick client but bad once added to tag via OPC item path **URL:** \ **Category:** Ignition\ **Tags:** vision, ignition81\ **Created:** [September 12, 2023, 6:07pm UTC](https://forum.inductiveautomation.com/t/modbus-data-good-in-quick-client-but-bad-once-added-to-tag-via-opc-item-path/79033 "2023-09-12T18:07:48Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![James\_Thibodaux](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@James\_Thibodaux](https://forum.inductiveautomation.com/u/James_Thibodaux)\ **Post date:** [September 12, 2023, 6:07pm UTC](https://forum.inductiveautomation.com/t/modbus-data-good-in-quick-client-but-bad-once-added-to-tag-via-opc-item-path/79033/1 "2023-09-12T18:07:48Z")
Hello, First time posting here. I am a bit lost as to why i am having these issues. I have added many other Modbus tags with out any issues. i have 10 rows in device connections and all the other mappings are working fine. I can check the data in the quick client and all is well. ![pic0](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/9/39b792dcd2a4f8c72feb746458be065305bea673.png) Once I add to tag via opc item path, data shows bad. PLEASE someone help. Hopefully its just a silly mistake i am not seeing. ![pic1](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/0/9057aea743530252747a592f470831ac12ed2edd.png) ![pic2](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/9/f982c1a99d1d01b4b823f1e06e55c4fefc782e06.png) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [September 12, 2023, 8:52pm UTC](https://forum.inductiveautomation.com/t/modbus-data-good-in-quick-client-but-bad-once-added-to-tag-via-opc-item-path/79033/2 "2023-09-12T20:52:15Z")
If you turn off the "Span Gaps" advanced setting in this device configuration does anything change? ---
**Author:** ![James\_Thibodaux](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@James\_Thibodaux](https://forum.inductiveautomation.com/u/James_Thibodaux)\ **Post date:** [September 13, 2023, 2:02am UTC](https://forum.inductiveautomation.com/t/modbus-data-good-in-quick-client-but-bad-once-added-to-tag-via-opc-item-path/79033/3 "2023-09-13T02:02:54Z")
Turns out i had to create a new tag group that was polled not subscribed. Ive never had this issue before. But, i will try this with a subscribed tag to see if it changes anything. Thanks