# Button change value to opc tag

**URL:** <https://forum.inductiveautomation.com/t/button-change-value-to-opc-tag/94033>\
**Category:** Maker\
**Tags:** perspective\
**Created:** [August 1, 2024, 12:08pm UTC](https://forum.inductiveautomation.com/t/button-change-value-to-opc-tag/94033 "2024-08-01T12:08:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Samuel\_Sueur](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Samuel\_Sueur](https://forum.inductiveautomation.com/u/Samuel_Sueur)\
**Post date:** [August 1, 2024, 1:04pm UTC](https://forum.inductiveautomation.com/t/button-change-value-to-opc-tag/94033/3 "2024-08-01T13:04:55Z")

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Hi @Darci_Junior ,

What you're trying to achieve would be referred to as a momentary button.

See this topic, a momentary button is NOT recommended:

> [@Momentary Button - Ignition Perspective 8.1](https://forum.inductiveautomation.com/t/momentary-button-ignition-perspective-8-1/80217):
>
> I am using Ignition Perspective 8.1 and we are starting to use this for some of our equipment as HMI's with a touchscreen PC. With that being said I was trying to use a "BUTTON" for starting a system and it appears that there is not an option for momentary. The button only has the ability to write to the tag and then needs to be reset. Does anyone know if this is correct. If so has anyone developed some reliable scripting to "create" a momentary button function. Currently we are using some PLC…

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