# CANopen Start

## Overview

![The CANopen Start Node.](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-1ca0c87a70a483137bf1b67f8394022291004d6d%2Fcanopenstart.png?alt=media)

THe **CANopen Start Node** starts communication with a **CANopen** connection that has already been set up in [**Project Settings**](https://docs.incari.com/incari-studio/2024.1/modules/project-settings/canopen).

It is important to note that while the **CANopen Start Node** starts a **CANopen** 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 CANopen Start Node**](https://docs.incari.com/incari-studio/2024.1/toolbox/communication/canopen/events/oncanopenstart) instead. This way, the **Logic** will only execute once the **CANopen** connection has definitely been established.

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

![CANopen Start and On CANopen Start Configuration.](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-c5f429cb5e877a5e53e9cb81be771768d13331e4%2Fcanopenstartexample.png?alt=media)

[**Scope**](https://docs.incari.com/incari-studio/2024.1/overview#scopes): **Project**, **Scene**.

## Attributes

![The CANopen Start Node Attributes.](https://4263346935-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLnh3x8s9fddWeG8TaAug%2Fuploads%2Fgit-blob-d1de4a2050194c07a806f1ef770d9e05e3f92fc8%2Fcanopenstartatts.png?alt=media)

| Attribute       | Type          | Description                                                                                                                                                                                    |
| --------------- | ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Configuration` | **Drop-down** | The identifying connection name that will be used, which has already been set up in the [**Project Settings**](https://docs.incari.com/incari-studio/2024.1/modules/project-settings/canopen). |

## 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

* [**CANopen Stop**](https://docs.incari.com/incari-studio/2024.1/toolbox/communication/canopen/canopenstop)
* [**CANopen Send**](https://docs.incari.com/incari-studio/2024.1/toolbox/communication/canopen/canopensend)