# T1.B100

<figure><img src="/files/cfb3aa3dabc9c3ac4c870a9c5c62c5e571fccf36" alt="" width="375"><figcaption><p>T1.B100 powerIO Box</p></figcaption></figure>

### Current version - Firmware

<details>

<summary>4.4 - Firmware - <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-4.4.piop">Download</a></summary>

Release Date 12.09.2025

**Bug fixes and improvements**

* Full versioning

{% hint style="success" %}
For a detailed changelog see version 4.3
{% endhint %}

</details>

***

### Current version - Bootloader

{% hint style="info" %}
With bootloader < 0.8 there can be rare startup issues after updates; switching off and on fixes this, the restart can take a few minutes\
\
The bootloader file can be installed independently of the firmware.
{% endhint %}

<details>

<summary>0.8 - Bootloader <a href="https://dl.powerio.com/downloads/powerIO-t1b100-bootloader-0.8.piop">Download</a></summary>

Release Date 08.09.2025

**Bug fixes and improvements**

* With bootloader versions < 0.8, in rare cases a firmware update could cause the system not to start. If this occurs, a power cycle (off and on) is required. This startup can take a few minutes, as the update will be applied again.\
  \
  With this version, this issue is fixed. The bootloader file can be installed independently of the firmware.

</details>

***

### Older versions - Firmware

<details>

<summary>4.3 - Firmware</summary>

Release Date 08.09.2025

**Bug fixes and improvements**

#### **Security**

* **HTTPS encryption** - Optionally activatable with automatic certificates and custom certificates.
* **Flexible access control** - HTTP, HTTPS and SSH configurable individually.

**Serial communication and Modbus**

* **Modbus speed 3x -** Through a buffer optimization the Modbus RTU queries are up to 3x faster! Depending on the connected Modbus device and baud rate.
* **Automatic reconnection** - Autonomous recovery in case of connection interruptions.
* **Parallel query optimization (Serial)** - Queries are now executed fully parallel per port.

**powerIO Portal connection (optional)**

* **powerIO Portal connection -** Preparation for powerIO Portal integration with encrypted transmission.
* **powerIO Portal device registration -** Registration of powerIO devices for support purposes and device assignment.

**Optimizations**

* **Reduced memory usage** - 15% less RAM usage in idle mode.
* **Automatic recovery** - Crashed services restart themselves - the system continues running without intervention.

**Bug fixes**

* **DNS server applications** - Applications now receive DNS server changes without the need to restart the application
* **Fix of memory leaks** - In rare cases there were memory leaks; this was fixed by better thread handling.
* **Fix of long reboot times** - When a reboot was triggered, it could take up to 100 seconds before it started.
* Bug fixes in the web interface and correction of typos

</details>

<details>

<summary>4.2 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-4.2.piop">Download</a></summary>

Release Date 24.03.2025

**Bug fixes and improvements**

* **Wi‑Fi dongle feature expansion**- Network usage possible in Network mode or Application mode.
* **Modbus functionality extended** - Faster port scanning and customizable timeout settings added.
* **Automatic activation of software packages** - Software is activated after installation without manual intervention.
* **System stability improved** - File system checks and optimized container management implemented.
* **Boot speed improved** - Optimized execution methods reduce startup time and memory usage.
* **Modbus log data extended** - Client source information added to trace data for better debugging.
* **Fix for package installation** - Issues fixed and installation process stabilized.

</details>

<details>

<summary>4.1 - Firmware</summary>

Release Date 31.01.2025\
WARNING: Critical bug - Modbus timeout fixed to 50ms - use a newer version!

**Bug fixes and improvements**

* Compatibility for internal application restored by updated dependency package.

</details>

<details>

<summary>4.0 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-4.0.piop">Download</a></summary>

Release Date 28.01.2025

**Bug fixes and improvements**

* Updated [Modbus stack](/hub/en/t1.b100/feldbus-protokolle/modbus.md#besonderheiten), with automatic list handling and optimized performance
* Additional features like [Modbus trace log](/hub/en/t1.b100/feldbus-protokolle/modbus.md#modbus-log) for error analysis
* Addition of the [Modbus test](/hub/en/t1.b100/feldbus-protokolle/modbus.md#modbus-test) to extend missing FCs and data types
* Extension to[ use serial ports in user applications](/hub/en/t1.b100/feldbus-protokolle/application.md#auswahl-fur-application-modus) able to.

</details>

<details>

<summary>3.22 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.22.piop">Download</a></summary>

Release Date 14.11.2024

**Bug fixes and improvements**

* Bug fix for reboot. In some situations the reboot was not executed when triggered via the web interface.

</details>

<details>

<summary>3.21 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.21.piop">Download</a></summary>

Release Date 10.09.2024

**Bug fixes and improvements**

* Bug fix for a dependency package for serial-transparent mode

**Info**\
\
If firmware version 3.20 was previously used and there is not enough storage space, the application "Internal Stack - Transparent mode" must be restarted.

<img src="/files/a7d7add0574e9fbf37559242c3c8ed582b1cd93c" alt="" data-size="original">

</details>

<details>

<summary>3.20 - Firmware</summary>

Release Date 04.09.2024

**Info**

*Please use firmware version 3.21. This version fixes a critical issue that occurred in version 3.20. This change affects only the T1.B100 device.*

**New features and changes**

* Performance optimization: Core functions were integrated into the main software, resulting in improved system performance.

**Bug fixes and improvements**

* Network connection at system start was improved to avoid interruptions.
* An issue when updating configuration files was fixed so that version information is now always displayed correctly.
* An issue with the NTP client was fixed to ensure more accurate system time.
* The Modbus integration was improved to reduce interruptions during system changes.
* The management of log files was optimized to use system resources more efficiently.
* LTE stability improvements

</details>

<details>

<summary>3.10 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.10.piop">Download</a></summary>

Release Date 15.05.2024

**Bug fixes and improvements**

* Improvement in log recording and bug fix of a background service

</details>

<details>

<summary>3.9 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.9.piop">Download</a></summary>

Release Date 08.05.2024

**New features and changes**

* Wi‑Fi dongle support for the new powerIO v2 app
* After uploading software packages the user interface now updates itself to show you the progress of unpacking.
* Handling of the mobile app was improved with extended session and authentication options.
* With new settings in log file management only relevant warnings are now shown, increasing clarity.

  <figure><img src="/files/912eb11acbd7cbeacbd6b1efb5263ec8d12c2c98" alt=""><figcaption></figcaption></figure>

**Bug fixes and improvements**

* We added a network bridge to ensure your network connections are maintained even during power outages.
* Access logs for certain API paths are no longer stored, further protecting your data.
* Logging and log rotation settings were optimized to improve system performance and use storage more efficiently.

</details>

<details>

<summary>3.8 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.8.piop">Download</a></summary>

Release Date 22.12.2023

**New features and changes**

* Preparation for the new fieldbus protocol BACnet
* Stability improvements at system startup

**Bug fixes**

* Previously, when network settings were changed the change was applied to all network interfaces. This caused, in the case of two network interfaces, a very short flicker for an unaffected change.
* When uploading large applications, a timeout was shown even though there was no timeout.
* After uploading an application, the state no longer stays at 100% during unpacking. Instead the user is shown that the application is being prepared. Afterwards the application can be installed as usual.

</details>

<details>

<summary>3.7 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.7.piop">Download</a></summary>

Release Date 06.11.2023

**New features and changes**

* Fast reconnection on connection loss without tearing down the modem
* Add package information for additional user apps

**Bug fixes**

* Modem disconnects and cannot reconnect
* Signal strength could sometimes not be retrieved
* Modem improvements - reconnect in different states.

</details>

<details>

<summary>3.6 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.6.piop">Download</a></summary>

Release Date 10.10.2023

**Bug fixes**

* Gateway can only be set when switching between DHCP and Static
* Security patches in dependency packages

</details>

<details>

<summary>3.4 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.4.piop">Download</a></summary>

Release Date 22.08.2023

**Bug fixes**

* Fixes the bug where an LTE connection used IPv6 instead of IPv4 even though IPv4 was configured as the preferred setting.

</details>

<details>

<summary>3.3 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.3.piop">Download</a></summary>

Release Date 17.08.2023

**New features and changes**

* Unified web interface for all powerIO devices
* Preparations for LTE modem as an expansion card

</details>

<details>

<summary>3.2 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.2.piop">Download</a></summary>

Release Date 31.07.2023

**New features and changes**

* Visual feedback when thresholds for storage usage are exceeded.

  <div align="left"><figure><img src="/files/d9e27cbbb54752627da8fc6c598b7d46b7a342a9" alt="" width="375"><figcaption><p>Threshold monitoring of system values</p></figcaption></figure></div>
* Visual feedback when thresholds for relevant performance metrics are exceeded.

  <div align="left"><figure><img src="/files/4584114028378efc9aa15e19ce76cd3bcb7069ec" alt="" width="375"><figcaption><p>Threshold monitoring of current values</p></figcaption></figure></div>
* Cross-page global "Advanced Mode" for an extended view of information.

  <div align="left"><figure><img src="/files/abd73cdf6a95555143739b2db7c50e50b92400a0" alt=""><figcaption><p>Enable/disable the "Advanced Mode"</p></figcaption></figure></div>
* Additional log information added to the "Diagnostic File".
* Display of the version limited to "Firmware Version", as this is the only relevant version for the end user.
* Installed user applications that redirect to an application website are marked with a "Link" icon.

  <div align="left"><figure><img src="/files/47bc9905547ae2650b5b27162bd2684c44f277ec" alt="" width="249"><figcaption><p>Buttons with "Link" and "Settings"</p></figcaption></figure></div>

**Bug fixes**

* In a critical error state, e.g. due to a kernel panic, an automatic reboot is performed.
* Fix for logging requests of the Device Manager.
* Active tabs under user applications are now highlighted.

  <div align="left"><figure><img src="/files/4cc8a4591b38510046f8c3a17b217f7b5148e34a" alt="" width="375"><figcaption><p>Active tab display</p></figcaption></figure></div>
* Buttons for "Extended Port" are now in a unified style.
* A display error during an active "Firmware Update" was fixed.

</details>

<details>

<summary>3.1 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-t1b100-firmware-3.1.piop">Download</a></summary>

Release Date 01.07.2023

**New features and changes**

* Support for new user applications
* If applications are in the uploaded area and installed, they are preserved during subsequent firmware updates (backup & restore).
* Installed applications are now dynamically shown in the navigation bar. Different configurations can be made depending on the application.
* Configuration files of applications, e.g. CODESYS, can be edited in the integrated file explorer.
* Adjustment of the dashboard web interface with additional information
* Parallel upload of applications possible
* Preparations for supporting an expansion card for an LTE modem.
* Preventing user application downgrades. Package must be uninstalled first. Afterwards an older version can be installed.
* Extensions for remote update with the Device Manager

**Bug fixes**

* Bug fix for connection of expansion cards
* Stability improvement of the UPS
* Stability improvement of measurements for 24 volt power supply
* Fix for target device selection. From firmware >= 3.0 only matching firmware versions for the respective target system can be installed.
* Fixed a display error in the Modbus test overview (date was shown incorrectly).
* Prevention of simultaneous installation processes that could previously lead to conflicts.
* Missing timestamps in the diagnostic file were added
* Security patches in dependency packages

</details>

<details>

<summary>2.22 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-b1-firmware_v2.22.piop">Download</a></summary>

Release Date 05.12.2022

**New features and changes**

* Increased the number of connectable devices per serial port from 10 participants to 32 participants.

</details>

<details>

<summary>2.21 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-b1-firmware_v2.21.piop">Download</a></summary>

Release Date 06.04.2022

**New features and changes**

* Increased the number of connectable devices per serial port from 4 participants to 10 participants.
* Diagnostic file can now be downloaded under *Settings -> Diagnostic* downloaded.

  ![](/files/a20374ff863ff93efc31dff0b51b5cb5c837861f)
* The diagnostic file is for evaluation of fault diagnoses by powerIO support. The file cannot be evaluated by the user themselves.

**Bug fixes**

* Reboot on power failure optimized.

</details>

<details>

<summary>2.20 - Firmware <a href="https://dl.powerio.com/downloads/powerIO-b1-firmware_v2.20.piop">Download</a></summary>

**New features and changes**

* LED test added to the diagnostic page.

**Bug fixes**

* Stability improvements in firmware update.

</details>


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