# Reference Tag and Tag Group Update Rate

**URL:** <https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186>\
**Category:** Ignition\
**Tags:** vision, ignition81\
**Created:** [February 22, 2023, 9:02pm UTC](https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186 "2023-02-22T21:02:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![hmiCanuck](https://avatars.discourse-cdn.com/v4/letter/h/d6d6ee/32.png) [@hmiCanuck](https://forum.inductiveautomation.com/u/hmiCanuck)\
**Post date:** [February 22, 2023, 9:02pm UTC](https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186/1 "2023-02-22T21:02:40Z")

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Vision 8.1.24  
We have a number of reference tags (which are part of UDTs) that are linked to a tag group with a slow direct update rate. The intent of these tags were to copy the OPC tags (which update at 50ms) but to limit their update rate to something slower so that the vision screens don't jump around crazy fast with analog values.

It appears this doesn't work (the reference tags do not seem to follow the tag group's direct update rate). Is this expected, and if so is there another option?

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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:** [February 22, 2023, 9:09pm UTC](https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186/2 "2023-02-22T21:09:18Z")

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Try expression tags instead of reference tags.

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**Author:** ![David\_Lopez](https://avatars.discourse-cdn.com/v4/letter/d/49beb7/32.png) [@David\_Lopez](https://forum.inductiveautomation.com/u/David_Lopez)\
**Post date:** [January 15, 2026, 1:37am UTC](https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186/3 "2026-01-15T01:37:54Z")

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Hi @pturmel. What would be the reason that reference tags don’t follow the Tag Group execution rate?

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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:** [January 15, 2026, 1:53am UTC](https://forum.inductiveautomation.com/t/reference-tag-and-tag-group-update-rate/70186/4 "2026-01-15T01:53:54Z")

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IIRC, reference tags bypass all of the normal infrastructure and just tap into changes on the source tag. (Tag Actor, maybe?)