# Read a reference value for all tags related a Driven historical Tag Group

**URL:** <https://forum.inductiveautomation.com/t/read-a-reference-value-for-all-tags-related-a-driven-historical-tag-group/33235>\
**Category:** Ignition\
**Created:** [March 19, 2020, 9:34am UTC](https://forum.inductiveautomation.com/t/read-a-reference-value-for-all-tags-related-a-driven-historical-tag-group/33235 "2020-03-19T09:34:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kjell](https://avatars.discourse-cdn.com/v4/letter/k/5daacb/32.png) [@kjell](https://forum.inductiveautomation.com/u/kjell)\
**Post date:** [March 19, 2020, 9:34am UTC](https://forum.inductiveautomation.com/t/read-a-reference-value-for-all-tags-related-a-driven-historical-tag-group/33235/1 "2020-03-19T09:34:27Z")

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Is possible to read a reference value for all tags when start a Driven historical Tag Group?

For example, digital tag should have a reference value when start logging, without setting the Property Max Time Between Samples.  
Best regards Kjell