# Possible to read / poll a different tag after write of original tag?

**URL:** <https://forum.inductiveautomation.com/t/possible-to-read-poll-a-different-tag-after-write-of-original-tag/103728>\
**Category:** Ignition\
**Tags:** ignition80, scripting, ignition81\
**Created:** [March 14, 2025, 8:11pm UTC](https://forum.inductiveautomation.com/t/possible-to-read-poll-a-different-tag-after-write-of-original-tag/103728 "2025-03-14T20:11:09Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [March 15, 2025, 8:55am UTC](https://forum.inductiveautomation.com/t/possible-to-read-poll-a-different-tag-after-write-of-original-tag/103728/8 "2025-03-15T08:55:30Z")

</div>

> [@Chris\_Bingham](#):
>
> especially OPC subscriptions w/ read after write whose tags auto-reset (or are overwritten) by the logic controller

I can't find the relevant post from Kevin I was looking for, but here's another interesting related one

> [@Tag group properties questions](https://forum.inductiveautomation.com/t/tag-group-properties-questions/80379/2):
>
> "Read after write" only has any effect with OPC tags, and it causes an explicit read to be issued to the underlying OPC server after the write has finished. It's something of a legacy option and should not be used with OPC UA tags unless the Tag Group is in Polled/Read mode. This is already how tags behave, you don't need to set anything special.

---

_[View the full topic](https://forum.inductiveautomation.com/t/possible-to-read-poll-a-different-tag-after-write-of-original-tag/103728)._