# Tag LastChange and Value do not change quickly

**URL:** <https://forum.inductiveautomation.com/t/tag-lastchange-and-value-do-not-change-quickly/35210>\
**Category:** Ignition\
**Created:** [June 1, 2020, 1:53pm UTC](https://forum.inductiveautomation.com/t/tag-lastchange-and-value-do-not-change-quickly/35210 "2020-06-01T13:53:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![marcelo.burstein](https://avatars.discourse-cdn.com/v4/letter/m/cc9497/32.png) [@marcelo.burstein](https://forum.inductiveautomation.com/u/marcelo.burstein)\
**Post date:** [June 1, 2020, 1:53pm UTC](https://forum.inductiveautomation.com/t/tag-lastchange-and-value-do-not-change-quickly/35210/1 "2020-06-01T13:53:34Z")

</div>

Hi

I’ve been checking the value from some tags and I see that the lastchange date is not the same what I read with a client OPC (Uaexpert). For example: in ignition’s tag a flowmeter (Kepserver) has 2020-06-01 2:11:13, but when I read with Uaexpert the last value it was at 2020-06-01 9:42:16 and the value is changing because the flowmeter is detecting flow. I’m waiting to update and the LastChange updated to 2020-06-01 2:17:13. The scanclass is Direct 1.000 ms and stale 10.000 ms. Ignition has two OPC: Kepserver (flowmeter) and Ignition OPC server (PLC).

Any suggestion?