# Tag historical sample rate

**URL:** <https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658>\
**Category:** Ignition\
**Tags:** perspective, ignition81\
**Created:** [April 21, 2022, 2:07am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658 "2022-04-21T02:07:41Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Johnny\_Li1](https://avatars.discourse-cdn.com/v4/letter/j/34f0e0/32.png) [@Johnny\_Li1](https://forum.inductiveautomation.com/u/Johnny_Li1)\
**Post date:** [April 21, 2022, 2:07am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658/1 "2022-04-21T02:07:41Z")

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Hi guys,

I am struggling with the historical sample rate, I have set the mode to periodic and 10 seconds sample rate at a minimum. But why I am getting 20s and 30s or even more sample rate?  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/1/d1c81756cfb4232306632ac1bfaa842ce65b2b8b.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/2/a27eadd3a5a540baee7dab6a777dbf89a7c99d7e.png)

Cheers  
Johnny

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**Author:** ![josborn](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@josborn](https://forum.inductiveautomation.com/u/josborn)\
**Post date:** [April 21, 2022, 2:18am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658/2 "2022-04-21T02:18:10Z")

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Try changing the Historical Deadband to 0.

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<div class="post-metadata">

**Author:** ![Johnny\_Li1](https://avatars.discourse-cdn.com/v4/letter/j/34f0e0/32.png) [@Johnny\_Li1](https://forum.inductiveautomation.com/u/Johnny_Li1)\
**Post date:** [April 21, 2022, 2:25am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658/3 "2022-04-21T02:25:13Z")

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![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/9/f9cb3d9f390c51803165be37c91d5c29089c0d77.png)  
Hi there, thanks for your reply, I changed the mode to “on change” and deadband to 0 , still min sample rate is not at 10 s .

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<div class="post-metadata">

**Author:** ![josborn](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@josborn](https://forum.inductiveautomation.com/u/josborn)\
**Post date:** [April 21, 2022, 2:26am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658/4 "2022-04-21T02:26:39Z")

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I think what is happening is the value isn’t changing so you aren’t satisfying the deadland condition. Changing to on change i would expect similar results.

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<div class="post-metadata">

**Author:** ![Johnny\_Li1](https://avatars.discourse-cdn.com/v4/letter/j/34f0e0/32.png) [@Johnny\_Li1](https://forum.inductiveautomation.com/u/Johnny_Li1)\
**Post date:** [April 21, 2022, 2:37am UTC](https://forum.inductiveautomation.com/t/tag-historical-sample-rate/58658/5 "2022-04-21T02:37:23Z")

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I see I see , yup deadband to 0 and periodic mode would do the job. Thank you so much !