# How to use parameters in the playback function

**URL:** <https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [June 15, 2023, 8:17am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062 "2023-06-15T08:17:44Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![KIM\_SUNG\_HOO](https://avatars.discourse-cdn.com/v4/letter/k/977dab/32.png) [@KIM\_SUNG\_HOO](https://forum.inductiveautomation.com/u/KIM_SUNG_HOO)\
**Post date:** [June 15, 2023, 8:17am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/1 "2023-06-15T08:17:44Z")

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Hello,

I am trying to implement the playback function using the ignition exchange sample. There is no problem with 1:1 tag application. However, I do not know how to apply tags using parameters.

Below is a picture of the path I am trying to apply.

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/0/6/0670880b53e27b280f50c93a16a34b5822ce18f1.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/3/738bf1ef63f3ec3b1530d66da957626625848708.png)

If the tag path is directly designated (1:1), playback can be performed, but I do not know how to playback multiple values using parameters. (tags : 4)

help me.

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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:** [June 15, 2023, 10:13am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/2 "2023-06-15T10:13:12Z")

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try with an expression binding on 4:  
`"[default]Cooling/" + {view.params.DeviceName} + "/" + {view.params.Tag}`

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<div class="post-metadata">

**Author:** ![KIM\_SUNG\_HOO](https://avatars.discourse-cdn.com/v4/letter/k/977dab/32.png) [@KIM\_SUNG\_HOO](https://forum.inductiveautomation.com/u/KIM_SUNG_HOO)\
**Post date:** [June 15, 2023, 11:33pm UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/3 "2023-06-15T23:33:41Z")

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When I try to bind, an error message appears.

warning:  
Cannot configure a binding on a descendent property of a parameter.

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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:** [June 16, 2023, 6:29am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/4 "2023-06-16T06:29:46Z")

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Can you show us how you're trying to configure the binding ?

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<div class="post-metadata">

**Author:** ![KIM\_SUNG\_HOO](https://avatars.discourse-cdn.com/v4/letter/k/977dab/32.png) [@KIM\_SUNG\_HOO](https://forum.inductiveautomation.com/u/KIM_SUNG_HOO)\
**Post date:** [June 16, 2023, 8:19am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/5 "2023-06-16T08:19:05Z")

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![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/1/81e1dd3d2e658a6945579e0df6b7bddad421f221.png)  
When clicking the square,  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/a/ea869ca764eec1cb9f195d75119a5abd13d25c2e.png)  
error popup appears.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/0/8/08e56195b42aab6cfd6a6a629904288aefdac6ee.png)  
This is full screen.

Is this the request you intended?

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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:** [June 16, 2023, 8:45am UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/6 "2023-06-16T08:45:12Z")

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You need to do the bindings where you PASS the parameters, not where you receive them.  
In other words, you shouldn't be doing the configuration in this view, but in the view that will use it.

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<div class="post-metadata">

**Author:** ![KIM\_SUNG\_HOO](https://avatars.discourse-cdn.com/v4/letter/k/977dab/32.png) [@KIM\_SUNG\_HOO](https://forum.inductiveautomation.com/u/KIM_SUNG_HOO)\
**Post date:** [June 18, 2023, 11:30pm UTC](https://forum.inductiveautomation.com/t/how-to-use-parameters-in-the-playback-function/75062/7 "2023-06-18T23:30:47Z")

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> [@pascal.fragnoud](#):
>
> You need to do the bindings where you PASS the parameters, not where you receive them.

thanks! It really works!