T1.B100
Firmware updates for the powerIO Box T1.B100
Current Version - Firmware
5.1 - Firmware - Download
Release Date 06.08.2026
New features and changes
powerIO Orbit: The web interface consistently uses the term powerIO Orbit instead of powerIO Portal.
Current Version - Bootloader
With Bootloader < 0.8, startup problems may rarely occur after updates; turning it off and on again fixes this, the restart can take several minutes The Bootloader file can be installed independently of the firmware.
0.8 - Bootloader Download
Release Date 08.09.2025
Bug fixes and improvements
With Bootloader versions < 0.8, in rare cases a firmware update can cause the system not to start. If this happens, the device must be switched off and on again. This startup can take several minutes, as the update is carried out again here. With this version, this issue has been fixed. The Bootloader file can be installed independently of the firmware.
Older versions - Firmware
5.0 - Firmware - Download
Release Date 22.07.2026
New features and changes
Security
Signed firmware packages: Firmware updates (PIOP) have been signed since version 5.0 and are checked on the device before installation. Packages without a valid signature are rejected.
API keys for external systems: Access to the device API via individually assignable and revocable API keys, without passwords in scripts or configuration files.
Serial communication and Modbus
Optimized Modbus communication: Interframe timing according to the Modbus specification and elimination of a race condition for even more stable parallel queries.
powerIO Orbit integration (Optional)
powerIO Orbit integration: Improved and more stable integration with powerIO Orbit with encrypted transmission.
Bug fixes
Onboard I/Os: The onboard I/Os are reliably available again after a restart of the API service.
Password reset code: Security improvement in the generation of the password reset code.
Time server fallback: Fallback to alternative time servers when the configured NTP server is unreachable.
Firmware Upload: Improved error handling when uploading firmware packages in the web interface.
Bug fixes in the web interface and updates to system components
4.4 - Firmware - Download
Release Date 12.09.2025
Bug fixes and improvements
Complete versioning
For a detailed changelog, see version 4.3
4.3 - Firmware
Release Date 08.09.2025
Bug fixes and improvements
Security
HTTPS encryption - Can be optionally enabled with automatic certificates and custom certificates.
Flexible access control - HTTP, HTTPS and SSH individually configurable.
Serial communication and Modbus
Modbus speed 3x - Due to buffer optimization, Modbus RTU queries are up to 3x faster! Depending on the connected Modbus device and baud rate.
Automatic reconnection - Automatic recovery after connection interruptions.
Parallel query optimization (Serial) - Queries are now fully performed in parallel per port.
powerIO Portal integration (Optional)
powerIO Portal integration - 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 operation.
Automatic recovery - Crashed services restart automatically - the system continues running even without intervention.
Bug fixes
DNS server applications - Applications now receive DNS server changes without the application needing to be restarted
Fixing memory leaks - In rare cases, memory leaks occurred; this was fixed through improved thread handling.
Fixing long restart times - When a restart was initiated, it could take up to 100 seconds before it was triggered.
Bug fixes in the web interface and correction of typos
4.2 - Firmware Download
Release Date 24.03.2025
Bug fixes and improvements
Wi-Fi dongle function extension- Network usage possible in Network mode or Application mode.
Expanded Modbus functionality - Faster port scanning and customizable timeout settings added.
Automatic activation of software packages - Software is activated after installation without manual intervention.
Improved system stability - Filesystem checks and optimized container management implemented.
Accelerated system startup - Optimized execution methods reduce startup time and memory usage.
Expanded Modbus log data - Client source information added to trace data for better debugging.
Fix for package installation - Issues fixed and installation process stabilized.
4.1 - Firmware
Release Date 31.01.2025 WARNING: Critical bug - Modbus timeout fixed at 50ms - use a newer version!
Bug fixes and improvements
Compatibility for internal application restored through an updated dependency package.
4.0 - Firmware Download
Release Date 28.01.2025
Bug fixes and improvements
Updated Modbus Stack, with automatic list handling and optimized performance
Additional functions such as Modbus Trace Log for error analysis
Addition of Modbus Test with missing FCs and datatype extensions
Extension to Use serial ports in user applications to be able to.
3.22 - Firmware Download
Release Date 14.11.2024
Bug fixes and improvements
Fix for restart. In some situations, the restart was not executed when it was initiated via the web interface.
3.21 - Firmware Download
Release Date 10.09.2024
Bug fixes and improvements
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.

3.20 - Firmware
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 applies exclusively to the T1.B100 device.
New features and changes
Performance optimization: The core functions were integrated into the main software, resulting in improved system performance.
Bug fixes and improvements
The network connection during system startup 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 make better use of system resources.
LTE stability improvements
3.10 - Firmware Download
Release Date 15.05.2024
Bug fixes and improvements
Improvement in log recording and fix for a background service
3.9 - Firmware Download
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 automatically to show you the unpacking progress.
The handling of the mobile app was improved through extended session and authentication options.
Through new settings in log file management, only relevant warning messages are now displayed, which improves clarity.\\

Bug fixes and improvements
We added a network bridge to ensure that your network connections are maintained even during power outages.
Access logs for certain API paths are no longer stored, which protects your data even better.
Logging and log rotation settings were optimized to improve system performance and use storage space more efficiently.
3.8 - Firmware Download
Release Date 22.12.2023
New features and changes
Preparation for the new fieldbus protocol BACnet
Stability improvement during 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 short flicker for the unaffected change.
When uploading large applications, a timeout was displayed even though there was no timeout.
After uploading an application, the status during unpacking no longer remains at 100%. Instead, the user is shown that the application is being prepared. The application can then be installed as usual.
3.7 - Firmware Download
Release Date 06.11.2023
New features and changes
Fast reconnection after connection loss without tearing down the modem
Add package information for additional user apps
Bug fixes
Modem drops the connection and can no longer reconnect
Signal strength could sometimes not be retrieved
Modem improvements - Reconnect in different states.
3.6 - Firmware Download
Release Date 10.10.2023
Bug fixes
Gateway can only be set when switching between DHCP and Static
Security patches for dependency packages
3.4 - Firmware Download
Release Date 22.08.2023
Bug fixes
Fixes the bug where IPv6 is used instead of IPv4 in an LTE connection, even though this is set as the preferred setting.
3.3 - Firmware Download
Release Date 17.08.2023
New features and changes
Unified web interface for all powerIO devices
Preparations for LTE modem as an expansion card
3.2 - Firmware Download
Release Date 31.07.2023
New features and changes
Visual feedback when threshold values for storage usage are exceeded.

Threshold monitoring of system values Visual feedback when threshold values for relevant performance data are exceeded.\\

Threshold monitoring of power values Cross-page global "Advanced Mode" for an expanded view of information.\\

Enabling/disabling "Advanced Mode" Additional log information added to the "Diagnostic File".
Version display 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.\\

Buttons with "Link" and "Settings"
Bug fixes
In a critical error state, e.g. due to a kernel panic, an automatic restart is performed.
Fix for logging Device Manager requests.
Active tabs under user applications are now highlighted.\\

Active TAB display Buttons for "Extended Port" are now in a uniform style.
A display error during the active "Firmware Update" was fixed.
3.1 - Firmware Download
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 retained during subsequent firmware updates (Backup & Restore).
Installed applications are now displayed dynamically in the navigation bar. Different configurations can be made here 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 support of an expansion card for an LTE modem.
Preventing user application downgrades. The package must be uninstalled first. Afterwards, an older version can be installed.
Extensions for remote update with the Device Manager
Bug fixes
Fix for connecting expansion cards
Stability improvement of the UPS
Stability improvement of the measured values 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.
Fix for a display error in the Modbus test overview (date was displayed incorrectly).
Preventing simultaneous installation processes, which could previously lead to a conflict.
Missing timestamps in the diagnostic file were added
Security patches for dependency packages
2.22 - Firmware Download
Release Date 05.12.2022
New features and changes
The number of connectable devices per serial port was increased from 10 devices to 32 devices.
2.21 - Firmware Download
Release Date 06.04.2022
New features and changes
The number of connectable devices per serial port was increased from 4 devices to 10 devices.
The diagnostic file can now be Settings -> Diagnostic downloaded.

The diagnostic file is for evaluating error diagnostics by powerIO support. The file cannot be evaluated by the user themselves.
Bug fix
Restart during power failure optimized.
2.20 - Firmware Download
New features and changes
LED test added to the diagnostics page.
Bug fix
Stability improvements during firmware update.
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