# Read tag id value

**URL:** <https://forum.inductiveautomation.com/t/read-tag-id-value/95238>\
**Category:** Ignition\
**Created:** [August 28, 2024, 2:04am UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238 "2024-08-28T02:04:24Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\
**Post date:** [August 28, 2024, 2:04am UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/1 "2024-08-28T02:04:24Z")

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Hi  
For tag or UDT instance ignition generate unique tag id which can be seen in tag edit popup.  
I want to use this tag I'd in my application but I wonder how can I read it in python.

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<div class="post-metadata">

**Author:** ![lrose](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lrose/32/62724_2.png) [@lrose](https://forum.inductiveautomation.com/u/lrose)\
**Post date:** [August 28, 2024, 3:27am UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/2 "2024-08-28T03:27:40Z")

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All tag properties that can be read are read in the same way. The value is the default property, but you can specify others.

It would be something like this:

```python
system.tag.readBlocking(['path/to/tag.propertyName'])

```

I’m away from my computer at the moment so don’t know what the actual property name for this is.

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<div class="post-metadata">

**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\
**Post date:** [August 28, 2024, 3:20pm UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/3 "2024-08-28T15:20:27Z")

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I mean this tag Id:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/f/2ffd49c515cf286eb64ef66801fc486191b90fde.png)  
I tested many keywords but non of them worked.

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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:** [August 28, 2024, 3:30pm UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/4 "2024-08-28T15:30:04Z")

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Have you tried `.uuid` ?

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<div class="post-metadata">

**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\
**Post date:** [August 28, 2024, 3:54pm UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/5 "2024-08-28T15:54:02Z")

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Yes and it return nothing

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<div class="post-metadata">

**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\
**Post date:** [August 28, 2024, 4:21pm UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/6 "2024-08-28T16:21:45Z")

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What do you want to do with it ?

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<div class="post-metadata">

**Author:** ![elijah.roberts](https://avatars.discourse-cdn.com/v4/letter/e/a6a055/32.png) [@elijah.roberts](https://forum.inductiveautomation.com/u/elijah.roberts)\
**Post date:** [August 28, 2024, 4:30pm UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/7 "2024-08-28T16:30:53Z")

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I believe that is more of an internal value for ignition and it's tag diagnostics. I do not believe that is a value that can be accessed via tag.browse or tag.read functions.

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<div class="post-metadata">

**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\
**Post date:** [August 29, 2024, 8:56am UTC](https://forum.inductiveautomation.com/t/read-tag-id-value/95238/8 "2024-08-29T08:56:54Z")

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We want to use it a unique id for each device, and track the device with our client.  
May be with some java class we can read it. Any idea on this @Kevin.Herron ?