# UDT Control and Viewing (Vision)

**URL:** <https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398>\
**Category:** Ignition\
**Tags:** vision\
**Created:** [July 14, 2023, 5:20pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398 "2023-07-14T17:20:58Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Gabriel\_Villagran](https://avatars.discourse-cdn.com/v4/letter/g/7c8e57/32.png) [@Gabriel\_Villagran](https://forum.inductiveautomation.com/u/Gabriel_Villagran)\
**Post date:** [July 14, 2023, 5:20pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/1 "2023-07-14T17:20:58Z")

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Hi!

I have a UDT (Short) coming from an OPC with 5 instances, I want to know if there is a way that I can view and manipulate the value coming from these UDT using only 1 template.

I have tried the indirect tags but is not working properly, is there any other way to do this?

Regards

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**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [July 16, 2023, 1:38am UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/2 "2023-07-16T01:38:02Z")

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> [@Gabriel\_Villagran](#):
>
> have a UDT (Short) coming from an OPC with 5 instances,

Not sure what you mean by this. Do you mean you have a short data type opc tag within a udt definition that has 5 instances?  
have you set the binding to bidirectional?

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<div class="post-metadata">

**Author:** ![Gabriel\_Villagran](https://avatars.discourse-cdn.com/v4/letter/g/7c8e57/32.png) [@Gabriel\_Villagran](https://forum.inductiveautomation.com/u/Gabriel_Villagran)\
**Post date:** [July 17, 2023, 3:00pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/4 "2023-07-17T15:00:06Z")

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Yes, it is set as bidirectional, but is not working, is there another way to do this, like using expressions or something like that?

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**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [July 18, 2023, 12:15am UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/5 "2023-07-18T00:15:29Z")

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> [@nminchin](#):
>
> Do you mean you have a short data type opc tag within a udt definition that has 5 instances?

and to maintain  
You didn't answer my first question, so I'm still in the dark a bit.

Can you post screenshots of your:

- tags
- component property binding  
?

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<div class="post-metadata">

**Author:** ![Gabriel\_Villagran](https://avatars.discourse-cdn.com/v4/letter/g/7c8e57/32.png) [@Gabriel\_Villagran](https://forum.inductiveautomation.com/u/Gabriel_Villagran)\
**Post date:** [July 18, 2023, 3:35pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/6 "2023-07-18T15:35:44Z")

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Hi!,  
I have these UDT Tags and I want to modify the value with only one template, I am using a numeric text field but is not working as it should.  
I am using the mode tag for choosing the property and change the value between the different instances.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/c/3c1b54a363f925884b794f2fd511e92035e437e9.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/3/23856222c19517f27a9430018b83c9e89b0efb4e.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/6/16b9b6edcb1474d569e484b8dc403eb2674743f2.png)

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<div class="post-metadata">

**Author:** ![Paul.Scott](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul.scott/32/4578_2.png) [@Paul.Scott](https://forum.inductiveautomation.com/u/Paul.Scott)\
**Post date:** [July 18, 2023, 3:58pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/7 "2023-07-18T15:58:53Z")

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Closed on July 18, 2023, 3:58pm UTC



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<div class="post-metadata">

**Author:** ![Paul.Scott](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul.scott/32/4578_2.png) [@Paul.Scott](https://forum.inductiveautomation.com/u/Paul.Scott)\
**Post date:** [July 18, 2023, 4:01pm UTC](https://forum.inductiveautomation.com/t/udt-control-and-viewing-vision/76398/8 "2023-07-18T16:01:47Z")

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@Gabriel_Villagran asking questions about the certification test in our forums is explicitly forbidden (page 2 of the test instructions). If you have questions about the test, please send them to [training@inductiveautomation.com](mailto:training@inductiveautomation.com)
