# Uncertain\_InitialValue for large tag provider

**URL:** <https://forum.inductiveautomation.com/t/uncertain-initialvalue-for-large-tag-provider/73480>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [May 9, 2023, 3:01pm UTC](https://forum.inductiveautomation.com/t/uncertain-initialvalue-for-large-tag-provider/73480 "2023-05-09T15:01:19Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![Ryan\_Allen](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan_allen/32/47013_2.png) [@Ryan\_Allen](https://forum.inductiveautomation.com/u/Ryan_Allen)\
**Post date:** [May 14, 2023, 4:19pm UTC](https://forum.inductiveautomation.com/t/uncertain-initialvalue-for-large-tag-provider/73480/7 "2023-05-14T16:19:19Z")

</div>

Try this

> [@RSLogix OPC server tags can not be read/write in desginer](https://forum.inductiveautomation.com/t/rslogix-opc-server-tags-can-not-be-read-write-in-desginer/72958/5):
>
> I solved it by changing tag group OPC data mode from subscribe to polled

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