# Trending Limits Without Historian?

**URL:** <https://forum.inductiveautomation.com/t/trending-limits-without-historian/15803>\
**Category:** Ignition\
**Created:** [October 28, 2017, 6:58pm UTC](https://forum.inductiveautomation.com/t/trending-limits-without-historian/15803 "2017-10-28T18:58:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![afarzin](https://avatars.discourse-cdn.com/v4/letter/a/c5a1d2/32.png) [@afarzin](https://forum.inductiveautomation.com/u/afarzin)\
**Post date:** [October 28, 2017, 6:58pm UTC](https://forum.inductiveautomation.com/t/trending-limits-without-historian/15803/1 "2017-10-28T18:58:24Z")

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In terms of trending, what level of capability is available in Ignition WITHOUT having the tag historian module? Can tags be trended indefinitely as long as the server/client is not shutdown? Is there a time/data limit?

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 28, 2017, 6:59pm UTC](https://forum.inductiveautomation.com/t/trending-limits-without-historian/15803/2 "2017-10-28T18:59:59Z")

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None.  
Or rather, you’d have to use database pens and either manual recordings or use the SQL Bridge module.

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 28, 2017, 7:01pm UTC](https://forum.inductiveautomation.com/t/trending-limits-without-historian/15803/3 "2017-10-28T19:01:00Z")

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You could simply remove that module from your test setup to see what you get.