> 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-libraries.md).

# CODESYS download server powerIO libraries

## Description

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

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

In addition, custom servers can be added. powerIO provides its own download server, via 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...** .

<figure><img src="/files/f62b9f33d79130b91559e12ceeb9e2a65b34b448" alt="" width="146"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Add entry

* Navigate in the Options dialog to the section **Libraries**.
* Add a new entry in the Download Server section.

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

<figure><img src="/files/ac30dd53cf79490d27a58b62d1770ed6805bb4a7" alt="" width="375"><figcaption></figcaption></figure>

* Confirm the input 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 respective library (in the example HVAC Library 3.2.1.25)

<figure><img src="/files/a37614ce70b81df2d5186db889191cdcf7978cc6" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Delete added library from repository

* Open the **Library Repository**

<figure><img src="/files/537eebe09a0e1fce7d7b9a5c7fec97988b44c4f0" 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="/files/dbe0e45c5042e1849efbe2d62eecb783fa3bc536" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Download missing library

* Click on **Download missing libraries**
* A dialog box opens listing the libraries available for download

<figure><img src="/files/c3914d3cc0731b39b592ddd504044c8e87d658cb" alt="" width="563"><figcaption></figcaption></figure>

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

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

<figure><img src="/files/4a7943431610f132d66b8efe883d4ba60585bde4" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}


---

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