> For the complete documentation index, see [llms.txt](https://docs.incari.com/incari-studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incari.com/incari-studio/2024.1/toolbox/communication/udp/udpstart.md).

# UDP Start

## Overview

![The UDP Start Node.](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-d76b1a6f03e63ea2cd40cea050ef3807d5a9b135%2Fudpstartnode20241.png?alt=media)

**UDP Start** starts a **UDP** connection that has already been set up in [**Project Settings**](/incari-studio/2024.1/modules/project-settings/udp-connection.md).

**UDP Communication** in **Incari** is available as a plugin and is enabled as default. However, in the case that it is disabled in the **Plugins Editor**, it will not appear in the **Project Settings** and **UDP Start** will not show up in the [**Toolbox**](/incari-studio/2024.1/toolbox/overview.md). Please refer to the [**Plugins Editor**](/incari-studio/2024.1/modules/plugins.md) to find out more information.

It is important to note that while the **UDP Start Node** starts a **UDP** connection, it may not completely finish establishing said connection when the **Node** is executed. This could lead to the **Logic** attached to its **Output Pulse** to not work even though there is technically nothing wrong. In order to avoid this, it is highly suggested to use the [**On UDP Start Node**](/incari-studio/2024.1/toolbox/communication/udp/events/onudpstart.md) instead. This way, the **Logic** will only execute once the **UDP** connection has definitely been established.

Again, the user must first use the **UDP Start Node** to open the connection. Separately, the **On UDP Start Node** can be used to execute the desired **Communication Logic**.

![UDP Start and On UDP Start Configuration](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-a5b08b5dbcda57d0696323345af7e96495c52c17%2Fudpstartvsonudpstart.png?alt=media)

[**Scope**](/incari-studio/2024.1/toolbox/overview.md#scopes): **Project**, **Scene**.

## Attributes

![The UDP Start Node Attributes.](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-40ab1e79d1ffb7e2aa0d9d6f7c9ff8dca22fc35c%2Fudpstartatts.png?alt=media)

| Attribute       | Type          | Description                                                                                                                                                                     |
| --------------- | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Configuration` | **Drop-Down** | The desired *UDP* server, which refers back to the selections made under *UDP* in the [**Project Settings**](/incari-studio/2024.1/modules/project-settings/udp-connection.md). |

## Inputs

| Input             | Type      | Description                                                           |
| ----------------- | --------- | --------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse** | A standard **Input Pulse**, to trigger the execution of the **Node**. |

## Outputs

| Output             | Type      | Description                                                                                                                            |
| ------------------ | --------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| *Pulse Output* (►) | **Pulse** | A standard **Output Pulse**, to move onto the next **Node** along the **Logic Branch**, once this **Node** has finished its execution. |

## See Also

* [**UDP Stop**](/incari-studio/2024.1/toolbox/communication/udp/udpstop.md)