# Behaviour, visible - Binding to controller object

**URL:** <https://tech-community.robotics.abb.com/t/behaviour-visible-binding-to-controller-object/3214>\
**Category:** ScreenMaker\
**Created:** [November 26, 2009, 2:40pm UTC](https://tech-community.robotics.abb.com/t/behaviour-visible-binding-to-controller-object/3214 "2009-11-26T14:40:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Rob\_ot](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@Rob\_ot](https://tech-community.robotics.abb.com/u/Rob_ot)\
**Post date:** [November 26, 2009, 2:40pm UTC](https://tech-community.robotics.abb.com/t/behaviour-visible-binding-to-controller-object/3214/1 "2009-11-26T14:40:28Z")

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Why isn’t it possible, to make a object visible or invisible by binding to a controller object (such as a digital input / output).

I Can only bind to a application variable.

Thanks in advance

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<div class="post-metadata">

**Author:** ![Abhishek\_PM](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@Abhishek\_PM](https://tech-community.robotics.abb.com/u/Abhishek_PM)\
**Post date:** [June 14, 2010, 6:36am UTC](https://tech-community.robotics.abb.com/t/behaviour-visible-binding-to-controller-object/3214/2 "2010-06-14T06:36:08Z")

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Hello,

Visible property of control is not bindable to any RAPID data or IO signal but only to ScreenMaker variables. The risk is that the control needs to be visible at least once in order to initialize the binding mechanism.

Thanks