# Project template - Testboard

### Documentation

<a href="/spaces/6G4WDUYxjH3a0to8hJov/pages/de75f7b08cadd07b7679a8a4e5a315d3feee74ad" class="button secondary" data-icon="books">To the documentation</a>

### Current version

<details>

<summary>2.2.0.1 - CODESYS 3.5.21.2 - <a href="https://dl.powerio.com/downloads/HVAC-Testboard-powerIO-(CDS3.5.21.2_A)-2.2.0.1.projectarchive" class="button primary" data-icon="arrow-down-to-line">Download</a></summary>

Release date 19.01.2026

**New features and changes**

* HVACModbusIO2 library visualization adjusted
* powerIO Hardware Library added for onboard I/Os. WARNING Firmware H1.M100 must be >3.5 to use the onboard I/Os.
* Template optimized and adjusted for CODESYS version ≥ 3.5.21.2

</details>

***

### Older versions

<details>

<summary>2.0.3.0 - CODESYS 3.5.17.2 - <a href="https://dl.powerio.com/downloads/HVAC-Testboard-powerIO-(CDS3.5.17.2_A)-2.0.2.0.projectarchive">Download</a></summary>

Release date 23.09.2023

**New features and changes**

* HVACModbusIO2 library visualization adjusted
* powerIO Hardware Library added for onboard I/Os. WARNING Firmware H1.M100 must be >3.5 to use the onboard I/Os.

</details>

<details>

<summary>2.0.2.0 - CODESYS 3.5.17.2 - <a href="https://dl.powerio.com/downloads/HVAC-Testboard-powerIO-(CDS3.5.17.2_A)-2.0.2.0.projectarchive">Download</a></summary>

Release date 18.09.2023

**New features and changes**

* Libraries updated
* HVACModbusIO2 library and visualization adjusted
* ControlPI visualization button and FB\_MacroInfo visualization button added

</details>

<details>

<summary>2.0.1.0 - CODESYS 3.5.17.2 - <a href="https://dl.powerio.com/downloads/HVAC-Testboard-powerIO-(CDS3.5.17.2_A)-2.0.1.0.projectarchive">Download</a></summary>

**New features and changes**

* Heating circuit example added to the test board project

</details>


---

# Agent Instructions: 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:

```
GET https://support.powerio.com/hub/downloads/en/codesys-hvac-templates/template-testboard.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.