# Modify modbus polling rate

**URL:** <https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347>\
**Category:** Ignition\
**Created:** [June 21, 2023, 3:41pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347 "2023-06-21T15:41:28Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![AMA\_nylon](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@AMA\_nylon](https://forum.inductiveautomation.com/u/AMA_nylon)\
**Post date:** [June 21, 2023, 3:41pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347/1 "2023-06-21T15:41:28Z")

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Hi there,  
Is there a way to customize the pooling rate of a modbus device from ignition config ? If so, can we customize for one tag at a time or all together ?  
Thank you for your help.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [June 21, 2023, 3:43pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347/2 "2023-06-21T15:43:27Z")

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The rate of the Scan Class / Tag Group the tags belong to dictate the sampling interval that we ask the OPC UA server to use.

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<div class="post-metadata">

**Author:** ![AMA\_nylon](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@AMA\_nylon](https://forum.inductiveautomation.com/u/AMA_nylon)\
**Post date:** [June 21, 2023, 3:48pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347/3 "2023-06-21T15:48:14Z")

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Where can we create or modify the Tag Groups please ?

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [June 21, 2023, 3:49pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347/4 "2023-06-21T15:49:15Z")

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[https://docs.inductiveautomation.com/display/DOC81/Tag+Groups](https://docs.inductiveautomation.com/display/DOC81/Tag+Groups)

You may want to check out [Inductive University](https://inductiveuniversity.com/) for some free training.

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<div class="post-metadata">

**Author:** ![AMA\_nylon](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@AMA\_nylon](https://forum.inductiveautomation.com/u/AMA_nylon)\
**Post date:** [June 21, 2023, 3:55pm UTC](https://forum.inductiveautomation.com/t/modify-modbus-polling-rate/75347/5 "2023-06-21T15:55:20Z")

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Thank you Kevin.