> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/faq/faq-en/hvac-codesys-faq/codesys-download-server-powerio-bibliotheken.md).

# CODESYS Download Server for powerIO libraries

Adding another download server for the automatic download of CODESYS libraries from powerIO GmbH

## Description

CODESYS offers the option to automatically download unresolved libraries. By default, only the official CODESYS download server is configured for this:

```
https://store.codesys.com/CODESYSLibs/
```

In addition, custom servers can be added. powerIO provides its own download server, through which missing libraries can be obtained directly in the Library Manager. To use this service, the following server must be entered in CODESYS:

```
https://dl.powerio.com/CODESYSLibs/
```

### Instructions

{% stepper %}
{% step %}

### Open options

* Click in the menu bar on **Tools**.
* Then select the menu item **Options...** from.

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/hKwuoLQyVIEgiOD2Xt78/Screenshot%202026-01-22%20at%2016.35.15.png" alt="" width="146"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Add entry

* In the options dialog, navigate to the section **Libraries**.
* Add a new entry in the Download Servers section.

```
https://dl.powerio.com/CODESYSLibs/
```

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/8m0TF3OIXvwOg7KNwm75/Screenshot%202026-01-22%20at%2016.36.38.png" alt="" width="375"><figcaption></figcaption></figure>

* Confirm the entry with **OK**.
  {% endstep %}
  {% endstepper %}

### Test function

{% hint style="info" %}
For the example, the library **HVAC Library** used in version *3.2.1.25*
{% endhint %}

{% stepper %}
{% step %}

### Add library

* Open the **Library Manager** in any project
* Add the corresponding library (in the example, HVAC Library 3.2.1.25)

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/OzqwMEq5FxNvXH8f7R2N/Screenshot%202026-01-22%20at%2016.49.22.png" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Delete added library from repository

* Open the **Library Repository**

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/cOiOAXFlRffJXYtfwsHr/Screenshot%202026-01-22%20at%2016.50.28.png" alt="" width="563"><figcaption></figcaption></figure>

* Select the library and uninstall it
* After the library has been uninstalled, this is reflected accordingly in the **Library Manager** displayed

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/IpLwkhdQzRdkTPA1iPrD/Screenshot%202026-01-22%20at%2016.52.09.png" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Download missing library

* Click on **Download missing libraries**
* A dialog window opens that lists the libraries available for download

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/zc93sWoyxHnpkUlH5JWR/Screenshot%202026-01-22%20at%2016.54.19.png" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
**Note:** By default, the dialog window displays only one download URL per line. Additional available URLs are shown in the tooltip as soon as you position the mouse pointer over the corresponding field.
{% endhint %}

* Click on **Download**to start the process
* After successful completion, a confirmation is displayed, provided the library could be obtained from one of the configured servers.

<figure><img src="https://content.gitbook.com/content/TYBzFv70TPLPkr2VWWUS/blobs/FkGNae1zxk1FOV2MyUwc/Screenshot%202026-01-22%20at%2016.57.42.png" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}


---

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