> 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/codesys-hvac/en/powerio-json-library/beschreibung.md).

# Description

{% columns %}
{% column width="25%" %}

<figure><img src="/files/95fca1fdab737d7a22ccae554c20ce1666508b9d" alt="" width="100"><figcaption></figcaption></figure>
{% endcolumn %}

{% column width="75%" %}
The POWERIOJSON library enables the creation and parsing of JSON objects. This allows JSON data structures from typical web requests to be interpreted and transferred into CODESYS IEC variables.
{% endcolumn %}
{% endcolumns %}

***

So that you can get started right away, we offer the library as a download. A license is not required for use. If you need further support, please do not hesitate to contact us.

<a href="/spaces/ltcbXgy6Y2teLoU01eGk/pages/09add6feb3ea8db42356e16cc8b9880c99c7c638" class="button primary" data-icon="up-right-from-square">Download</a> <a href="https://www.powerio.com/de/kontakt" class="button secondary" data-icon="question">Get support</a>

{% hint style="info" %}
**Licensing:**

This product can be used without restriction without purchasing a license.
{% endhint %}

### Overview

{% columns %}
{% column width="91.66666666666666%" %}

<figure><img src="/files/0783b5b4c93fa7faf9f16c9215a18bd259d05412" alt=""><figcaption></figcaption></figure>

<p align="center"><em>Parse JSON strings and transfer data into IEC variables.</em></p>
{% endcolumn %}

{% column width="8.333333333333343%" %}

{% endcolumn %}
{% endcolumns %}

***

### Description

With this library, you can process JSON data structures directly from CODESYS in IEC code. The library provides function blocks for parsing JSON strings as well as for extracting individual values via path specifications.

The main components are:

* Master block for parsing JSON strings
* Slave block for extracting individual values via path specifications
* Slave block for processing structures
* Helper block for managing JSON object data

***

### Details

| **Documentation version**      | <code class="expression">space.vars.POWERIOJSON\_Library\_latest</code> |
| ------------------------------ | ----------------------------------------------------------------------- |
| **Placeholder**                | `POWERIOJSON`                                                           |
| **Available in CODESYS Store** | *No*                                                                    |
| **Programming system**         | *CODESYS V3.5.17.2 or higher*                                           |
| **Runtime system**             | *CODESYS Control V4.2.0.0 or higher*                                    |
| **Licensing**                  | *License-free*                                                          |

***


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://support.powerio.com/hub/codesys-hvac/en/powerio-json-library/beschreibung.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
