> 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/downloads/en/user-applications/hvac-cloud-adapter.md).

# HVAC Cloud Adapter

Download area for the HVAC Cloud Adapter for installation on powerIO devices.\
A [Guide for installation and administration](/hub/en/applications/installation.md) of the Application can be found on the help page.

### Current version

<details>

<summary>5.1 - HVAC Cloud Adapter 2.1.3.2</summary>

Release date: 08.07.2026

**Download for H1.M100, H1.M200 and T1.B100**

<a href="https://dl.powerio.com/downloads/powerIO-5.1-cloud-adapter-2.1.3.2-armhf.piop" class="button primary" data-icon="arrow-down-to-line">powerIO 5.1 Cloud Adapter 2.1.3.2 (armhf)</a>

**Download for H1.M300**

<a href="https://dl.powerio.com/downloads/powerIO-5.1-cloud-adapter-2.1.3.2-arm64.piop" class="button primary" data-icon="arrow-down-to-line">powerIO 5.1 Cloud Adapter 2.1.3.2 (arm64)</a>

**Bug fixes**

* Bug fix for mapping the Serial Ports for H1.M300

***

Minimum firmware version: v3.9\
Compatible Devices: H1.M100, H1.M200, H1.M300 and T1.B100

</details>

***

### Older versions

<details>

<summary>5.0 - HVAC Cloud Adapter 2.1.3.2</summary>

Release Date: 01.07.2026

**Download for H1.M100, H1.M200 and T1.B100**

<a href="https://dl.powerio.com/downloads/powerIO-5.0-cloud-adapter-2.1.3.2-armhf.piop" class="button primary" data-icon="arrow-down-to-line">powerIO 5.0 Cloud Adapter 2.1.3.2 (armhf)</a>

**Download for H1.M300**

<a href="https://dl.powerio.com/downloads/powerIO-5.0-cloud-adapter-2.1.3.2-arm64.piop" class="button primary" data-icon="arrow-down-to-line">powerIO 5.0 Cloud Adapter 2.1.3.2 (arm64)</a>

**New features and changes**

* Update to Cloud Adapter 2.1.3.2
* OPC-UA: Certificate Pinning with strict certificate verification
* MBus: Improved validation of BCD values
* Modbus: Support for write-only symbols
* MBus: Query logic adjusted to avoid compatibility issues
* Beckhoff ADS: Revised subscription handling for greater reliability and compatibility
* Modbus: New data types "First byte" and "Second byte"
* Improvements to HTTP routing
* MbedTLS and certificates updated
* Improved performance and stability

**Fixes:**

* A bug was fixed that could lead to unexpected connection drops with VNC connections
* JSON API: Correct interpretation of UTF-8 strings
* MBus: Negative BCD values were previously interpreted incorrectly

***

Minimum firmware version: v3.9\
Compatible Devices: H1.M100, H1.M200, H1.M300 and T1.B100

</details>

<details>

<summary>4.7 - HVAC Cloud Adapter 2.1.1.2 - <a href="https://dl.powerio.com/downloads/powerIO-4.7-cloud-adapter-2.1.1.2.piop">Download</a></summary>

Release Date: 08.09.2025

**New features and changes**

* Update to Cloud Adapter 2.1.1.2
* When used with H1.M200 LTE, a bug was fixed so that the connection to the HVAC Automation Portal can be established later when the connection is made

**Important new features:**

* BACnet: Support for all string encodings (also in device names)
* Serial communication: TTY devices are now recognized by their alias, if available
* Improved performance and stability

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.6 - HVAC Cloud Adapter 2.1.1.0 - <a href="https://dl.powerio.com/downloads/powerIO-4.6-cloud-adapter-2.1.1.0.piop">Download</a></summary>

Release Date: 08.09.2025

**New features and changes**

* Update to Cloud Adapter 2.1.1.0

**Important new features:**

* New: Access to and monitoring of local files is possible
* Bug fix for CSV import and export of symbols
* HTTP routing: Support for Event Streams (SSE)

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.5 - HVAC Cloud Adapter 2.1.0.0 - <a href="https://dl.powerio.com/downloads/powerIO-4.5-cloud-adapter-2.1.0.0.piop">Download</a></summary>

Release Date: 08.09.2025

**New features and changes**

* Update to Cloud Adapter 2.1.0.0

**Important new features:**

* New: Lua script module for local automation logic
* Fix for high memory usage with the ADS protocol on some devices

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.4 - HVAC Cloud Adapter 2.0.0.2 - <a href="https://dl.powerio.com/downloads/powerIO-4.4-cloud-adapter-2.0.0.2.piop">Download</a></summary>

Release Date: 08.09.2025

**New features and changes**

* Update to Cloud Adapter 2.0.0.2

**Important new features:**

* Fix for CSV import of connection symbols
* Critical fix for optimized reading of Modbus RTU
* Bug fix for M-Bus: Reading too quickly could lead to missing information

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.3 - HVAC Cloud Adapter 2.0.0.0 - <a href="https://dl.powerio.com/downloads/powerIO-4.3-cloud-adapter-2.0.0.0.piop">Download</a></summary>

Release Date: 08.09.2025

**New features and changes**

* Update to Cloud Adapter 2.0.0.0

**Important new features:**

* Completely redesigned user interface
* Even faster and more resource-efficient despite new features
* New feature: Network scan
* SBOM List (according to BSI TR-03183 Cyber Resilience Act)
* Authentication via the operating system username and password
* Automatic updates
* Guidelines for backup and restoration
* Enhanced logging in accordance with the requirements of the Cyber Resilience Act
* Documentation via online help
* Security check

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.1 - HVAC Cloud Adapter 0.9.9.4 - <a href="https://dl.powerio.com/downloads/powerIO-4.1-cloud-adapter-0.9.9.4.piop">Download</a></summary>

Release Date: 25.02.2025

**New features and changes**

* Update to Cloud Adapter 0.9.9.4

**Important new features:**

* HTTP routing: Optimizations for unexpected line breaks
* HTTP routing: TLS 1.3 available for web servers with self-signed certificates
* BACnet: Browsing devices only on request, which leads to a significant speedup in large networks
* BACnet: Elements without a description property are now also supported
* Teltonika: Configured pulse counters can be used

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>4.0 - HVAC Cloud Adapter 0.9.9.2 - <a href="https://dl.powerio.com/downloads/powerIO-4.0-cloud-adapter-0.9.9.2.piop">Download</a></summary>

Release Date: 28.01.2025

**New features and changes**

* When used with the powerIO-Box T1.B100, a serial port can now be assigned to the application. [Further information](/hub/en/t1.b100/feldbus-protokolle/application.md#auswahl-fur-application-modus).

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.7 - HVAC Cloud Adapter 0.9.9.2 - <a href="https://dl.powerio.com/downloads/powerIO-3.7-cloud-adapter-0.9.9.2.piop">Download</a></summary>

Release Date: 07.01.2025

**New features and changes**

* Update to Cloud Adapter 0.9.9.2

**Important new features:**

* HTTP forwarding: Optimizations for unexpected connection drops
* JSON API: Improved compatibility
* MBedTLS and certificates updated

***

Minimum firmware version: v3.9\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.6 - HVAC Cloud Adapter 0.9.9.1 - <a href="https://dl.powerio.com/downloads/powerIO-3.6-cloud-adapter-0.9.9.1.piop">Download</a></summary>

Release Date: 07.10.2024

**New features and changes**

* Update to Cloud Adapter 0.9.9.1

**Important new features:**

* Modbus: New optimized read function that allows up to 250 registers or up to 2000 coils to be read in one pass
* New: Display of cycle time for some connection types
* VPN: Bug fix - firewall rules could not be set on some Docker-based systems
* BACnet: Optimized browsing of legacy devices
* BACnet: Support for OBJECT\_MULTI\_STATE\_VALUE

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.5 - HVAC Cloud Adapter 0.9.9.0 - <a href="https://dl.powerio.com/downloads/powerIO-3.5-cloud-adapter-0.9.9.0.piop">Download</a></summary>

Release Date: 07.08.2024

**New features and changes**

* Update to Cloud Adapter 0.9.9.0

**Important new features:**

* New: Support for the CAN protocol
* New: Support for JSON APIs
* Optimizations for slow internet connections
* VPN: Reduction of data volume by suspending unused connections
* MBus: The polling interval can be configured
* OPC-UA: Bug fixed where the connection was not restored after a subscription expired

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.4 - HVAC Cloud Adapter 0.9.8.0 - <a href="https://dl.powerio.com/downloads/powerIO-3.4-cloud-adapter-0.9.8.0.piop">Download</a></summary>

Release Date: 04.03.2023

**New features and changes**

* Update to Cloud Adapter 0.9.8.0\
  -> Modbus: Support for FC06 and FC16, write registers\
  -> New protocol: SunSpec (TCP and RTU) support\
  -> When connected via LTE, the cell tower location is automatically displayed in the portal

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.3 - HVAC Cloud Adapter 0.9.7.5 - <a href="https://dl.powerio.com/downloads/powerIO-3.3-cloud-adapter-0.9.7.5.piop">Download</a></summary>

Release Date: 18.12.2023

**Bug fixes**

* Serial Ports could not be used on the H1.M100 and H1.M200 in the versions *>= 3.0 <=3.2* could not be used. This error has now been fixed and the use of Serial Ports is possible again.

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.2 - HVAC Cloud Adapter 0.9.7.5 - <a href="https://dl.powerio.com/downloads/powerIO-3.2-cloud-adapter-0.9.7.5.piop">Download</a></summary>

Release Date: 23.11.2023

**New features and changes**

* Update to Cloud Adapter 0.9.7.5\
  -> BACnet: Fix reading/writing BinaryValues on devices with MIPS processor

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.1 - HVAC Cloud Adapter 0.9.7.4 - <a href="https://dl.powerio.com/downloads/powerIO-3.1-cloud-adapter-0.9.7.4.piop">Download</a></summary>

Release Date: 17.08.2023

**New features and changes**

* Update to Cloud Adapter 0.9.7.4\
  \--> Siemens: Performance improvements\
  \--> Beckhoff ADS: Arrays and substructures are now supported correctly\
  \--> OPC-UA: Improvements regarding stability and idle detection\
  \--> Fixed: Excel export/import with umlauts did not work correctly

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

<details>

<summary>3.0 - HVAC Cloud Adapter 0.9.7.1 - <a href="https://dl.powerio.com/downloads/powerIO-3.0-cloud-adapter-0.9.7.1.piop">Download</a></summary>

Release Date: 22.06.2023

**New features and changes**

* Compatibility for H1.M200 powerIO Device
* Backup & Restore function

***

Minimum firmware version: v3.0\
Compatible devices: H1.M100, H1.M200 and T1.B100

</details>

{% hint style="warning" %}
Please note that the version(s) below are only suitable for the firmware **< 3.0** are suitable
{% endhint %}

<details>

<summary>2.0 - HVAC Cloud Adapter 0.9.6.1 - <a href="https://dl.powerio.com/downloads/powerio-2.0-cloud-adapter-0.9.6.1.piop">Download</a></summary>

Release Date: 22.06.2023

**New features and changes**

* Compatibility for H1.M200 powerIO Device
* Backup & Restore function

***

Minimum version: >= v2.0 < v3.0\
Compatible devices: H1.M100 and T1.B100

</details>


---

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