> 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-and-news/en/hvac-codesys-faq/codesys-download-server-powerio-libraries.md).

# CODESYS download server powerIO libraries

## Description

CODESYS provides the ability 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 from 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="/files/dd92f0ee670b1298d7b0fd440339ba760740f23d" alt="" width="146"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Add entry

* In the options dialog, navigate to the section **Libraries**.
* In the section for download servers, add a new entry.

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

<figure><img src="/files/7ab20196a229f34e134f6edddd8dafc2ef931dc5" 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** is 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/a6ef440829851537a8c8eee638a72b2d4a8857f8" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Remove added library from repository

* Open the **Library Repository**

<figure><img src="/files/cec5d07ca34fc341dca0b793ab85548c6f8cf912" alt="" width="563"><figcaption></figcaption></figure>

* Select the library and uninstall it
* After the library has been uninstalled, this will be shown accordingly in the **Library Manager** displayed

<figure><img src="/files/1c7ea1b8a035ccf9f0264619bfaa137977a433c6" 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="/files/f8a0e6011a2651fbdc128dbc6b5e4f268e367724" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
**Note:** By default, the dialog window shows only one download URL per line. Additional available URLs are displayed in the tooltip when you place the mouse cursor over the corresponding field.
{% endhint %}

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

<figure><img src="/files/3796722496718e41bb74e7ff31cf7329566e1240" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}


---

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