---
alias: user-guide-automation-task-opcua-createfile
tags:
- automation tasks
description: "This documentation describes creating a file on an OPC UA server using a driver"
---

# Create File

![Screenshot showing a file creation interface.](images/createfile-lg.svg)

This task creates a file in OPC UA server using the File Transfer feature. To be used with OPC UA driver in Client mode.

![Screenshot showing a UI with options to create a file, including "Node ID" and "File Name".](./images/create_file_parameters.png)

## Inputs

| Name     | Data Type | Description                                |
| ------   |  ---------| ------------------------------------------ |
| nodeId   | `String`  | The node id where the file will be created |
| name     | `String`  | Name for the file                          |
| Activate |  `any`    | Activate the task                          |

## Outputs

| Name       | Data Type | Description                                                             |
| ---------- | --------- | ----------------------------------------------------------------------- |
| fileNodeId | `String`  | The newly created node id for the file                                  |
| isNew      | `Boolean` | The flag that specifies whether the file was created or already existed |
| Success    | `Boolean` | If there was no problem emits a true                                    |
| Error      | `Error`   | Error that occurred during the processing of this task                  |

## Settings

On the *General Tab*, you have the usual settings and the following settings:

| Name           | Data Type | Default   | Description                                                                                          |
| -------------- | --------- | --------- | ---------------------------------------------------------------------------------------------------- |
| NodeId         | `String`  |           | The node id where the file will be created                                                           |
| Fail if exists | `Boolean` | False     | If true and the file exists, will throw an error, otherwise will output the already existing node id |

![Diagram showing a table with columns labeled "Name", "Data Type", and "Default".](./images/create_file_settings.png)

## Behavior

Activate will trigger a message to the driver. The contents of the message are the values received in the inputs or settings.

## Remarks

All the communication with the equipment is handled by the driver in the backend.