Software update

This section describes the update of the next system (inverters, nx interface and accessories) using the nx interface and nextOS

Please go to the Update section in the nextOS main menu and simply follow the instructions. If the device is connected to internet, the upgrade will be straightforward. The USB upgrade is still available for those devices that are not connected to internet.

The updating process can take between 3 and 15 minutes. NEVER disconnect the battery during an update. During this process, the installation is stopped and the AC power supply is interrupted. Choose the proper moment to process an update.

When multiple elements are connected to the nx interface and to the next3 by the communication bus, it is possible that the software versions are not compatible. It is highly recommended to update the software of all components in the system to guarantee all functionalities. Therefore, before starting the setup of the device, please make sure that all the components in the system have the latest software version.

Update procedure

The remote update is available from v1.2.0.0 when the device is connected to internet (both with ethernet cable or dongle wifi). Click the “search update” button, the interface will identify if an update is available online.

Once the update is identified, the current and available versions information is shown. The update of the system is ready, press the “Start update” button.

You will see a message to inform that the system will restart during the update procedure. Please be aware that the next3 will turn off and on during the update process. Disconnecting the loads before the update process is therefore advised.

The update is performed in several steps. First, the next interface is updated and restarted. Once the next interface update is finished the update of the other devices in the system is also performed subsequently and automatically. The system will restart again after all the devices are updated.

Please bear in mind that after restarting, the devices will be in off mode, therefore powered but not running. You will need to turn on the devices using the system “ON/OFF” button in the next interface.

USB update procedure

Download the latest software version from our website. Go to the Downloads section, click on Software updates in the next product and download the “next3 system update”. Unzip the file and copy the “next_vX.Y.Z.A.stub” file on an usb key at the root of the key. Make sure that the copy process is finalized before removing the USB from the computer. We advise to eject the unit to avoid any file corruption issue.

Read the pdf document included in the zip file containing the next3 software update procedure. Insert the USB key in the next interface.

After the check, the interface will identify if an update is available. The current and the available update can be seen on the right side. An information will be displayed in case of software incompatibility. If there is no update available, you can click “Search USB” to confirm if the update file is on the USB unit.

Note: The usb key must not be removed until the end of the updating process. If for some reason the updating process is interrupted, please restart it and make sure to let the process finish.

Why update your system

The next3 is a connected device, to ensure the security and to have access to all the latest functionalities of your system please keep your system up to date. It is mandatory to update your device.

Latest update

Make sure that the devices have the latest software update. Please find below the latest software version available with the release notes, followed by the previous versions' notes for reference and information. Do not hesitate to contact our support team in case of any doubt or question.

Next software system update v1.2.30.0

This update contains various new features, security updates, bug fixes and is mandatory for every next user.

For upgrading the system, go to the update section in the nextOS menu, click "Search update" and simply follow the instructions. The USB upgrade is still available for those devices that are not connected to internet.

Important information: This release improves the stability of transfer relay behaviour after several issues were reported. We advise to upgrade the system to avoid potential issues in the future. It comes along with several new improvements, additions and minor corrections.

This software release includes:

Improved transfer relay opening when the current is too high
Improved inverter behaviour during transfer relay opening
Improved neutral relay timing
Fixed a bug where the solar could start at night during heavy storms and cause false insulation default errors
Added countries with standard grid codes in the grid codes list
For non-communicating batteries, enable the end-of-charge synchronization feature by default
Updated the default communication timeout for Twice batteries
Added warnings and errors for detecting additional problems on AC-Source / AC-Flex
Added settings for maximum current and power for PV inputs
Added periodical check of available updates
Improved remote control capabilities from the Studer portal
Improved Wifi connection stability
Improved saving of settings modified through the Web Interface
Added earthing scheme information in the datalog CSV
Fixed several bugs: exported datalog CSV files could be incomplete, fan speed in RPM instead of °C, battery charging recovery mode when discharging not allowed, warnings and errors when using genset as second source.
Graphical User Interface:
- Added selection and assignation of AC phases during Wizard
- Fixed a graphical bug where sometimes values were not updated properly
- Fixed a bug in the charts page where a false-positive error message could appear
- Fixed a graphical bug with the numeric code input after sleep mode
- Updated user-level permissions on several properties for configuring AC/battery
- Improved datalog import time estimation
- Replaced "AC coupling" term by "AC solar" in charts view
- Fixed a bug where some objects could appear 2 times in the device information list

This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with a software version equal or greater than V1.0.0.0. However, when updating from a previous version (v0.6.0.0 or previous) the upgrade will perform a parameter reset and the configuration assistant will guide you through the system settings. Contact your installer to configure your system according to the local regulation.

next software system update v1.2.30.0

18.09.2023. Download now!

Next software system update v1.2.18.0

This update contains various new features, security updates, bug fixes and is mandatory for every next user.

AC coupling frequency control
The new software includes the full management of AC coupling sources (for example existing solar inverters). The frequency control algorithm permits to limit the production if required by the system in offgrid mode (during a blackout, grid disconnection or full offgrid setup).

Important information:

This release fixes a bug where full memory was not properly detected on the gateway, which could lead to a potential loss of datalog information. We recommend updating your system without delay in order to protect it from any loss of data.

This software release includes:

Implemented AC coupling support with frequency shift control algorithm for limiting the production
Added simplified settings for AC inputs tolerances, mainly used for gensets configuration
New functionality for battery periodic charging or discharging
Added several options to use the command input based on battery parameters (e.g. current limits or SOC limits)
Improved end of charge cycle with Pylontech batteries
Added compatibility with "Aliant Battery"
Adjusted adaptative SOC for backup performance, implementing 24h cycles
Improved stability and checks for multi-unit batteries systems
Improved preset "Solar excess" for relays control
Added new preset "Off source" for relays control, enabling relay activation when AC input is disconnected
Improved robustness of Studer portal’s connection
Added more battery information in the system datalog
Improved the timeout delays handling for Modbus requests
Fixed several bugs: update process stability, full memory on gateway, incomplete datalog CSV file, internal temperature wrong values, earth mode disabled stop, automatic selection of genset with grid disabled, wrong status command input 2 as inverted
Graphical User Interface:
- Added new graphs for AC coupling, and a new section in the configuration assistant
- Added genset-specific settings page
- Added more details for internet connection status in Monitoring view
- Improved new "Web Interface" feature (still in beta version)
- Clarified and improved readability for several questions in the configuration wizard
- Improved battery gauge for smoother current display
- Improved filtering and accuracy of displayed electrical values
- Added device serial number in FlexLoads view
- Fixed a bug with maximum system power in multi-unit configuration.
- Fixed a bug in configuration wizard for installations with 2 non-communicating batteries and communication loss with second device

Important information: This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with a software version equal or greater than V1.0.0.0. However, when updating from a previous version (v0.6.0.0 or previous) the upgrade will perform a parameter reset and the configuration assistant will guide you through the system settings.

next software system update v1.2.18.0

21.07.2023.

Next software system update v1.2.0.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

Important information: Multi-unit systems with 2 next3 in parallel
The new software allows the installation of 2 next3 in parallel in the same installation, with the same or independent batteries.

Software update from internet
From this version the software update can be done directly from internet if the device is connected. The interface will serach and identfiy the update online. The usb update process is still available for non connected installations.

New phase balancing function
A new function to easily configure the phase balancing with 3 presets: activated, deactivated and smart mode. By default the smart mode manage the phase balancing compensating system performance.

This software release includes:

New management of batteries errors and undervoltage conditions
New firmware update from internet
Wifi connectivity: fixed bugs and new AccessPoint mode
Enabled installations with 2x next3 devices in parallel
Improved system datalog
New phase balancing function with default efficient "smart" mode
Improved stability and efficiency of MPPT and battery regulation algorithms
New front panel button simplified operation mode
Improved solar warnings and alarms management
Updated grid codes pre-configuration setups
New feature: grid feeding power limitation with remote entry
Fixed bug single phase AC input connection blockage
Fixed bug Modbus access error, disconnection from portal
Graphical User Interface:
- Improved debug data upload to servers in case of errors
- Fixed displaying of IP address depending on ethernet or Wifi connectivity
- Improved intelligibility of the earthing system errors and warnings
- Improvements in notifications center, battery manufacturers list in alphabetical order, sensitivity of unlock slider, progress bar during update
- Added warnings for internal memory high usage, missing or full USB drive, internal device error
- Fixed bug error after system update
- Improvement on USB drive management to prevent file corruptions
- New multi-unit systems configuration wizard sections
- New QR code for facilitating GUID monitoring setup

next software system update v1.2.0.0

31.03.2023.

Next software system update v1.1.0.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

New compatible wifi dongle accessory for the nx interface
The v1.1.0.0 software brings wifi compatibility to connect the nx interface to the internet, using the new wifi dongle accessory. The configuration is very simple, compatible with WPA and WPA-2 networks from the configuration page which displays the connection status.

MPPT startup voltage at 200V
Another interesting novelty is the new starting voltage of the MPPT algorithm, which is lowered down to 200V, making it easier to configure panel strings with lower voltages and allowing higher solar operation in contexts of less favorable conditions.

This software release includes:

Lowered MPPT start-up voltage to 200V instead of 350V
Fixed a bug daily energies in datalog at zero
Fixed a bug error after start-up
Fixed a bug to turn off +12V control for command inputs
Fixed a bug maximum grid current exceeding reactive load
Fixed a bug false positive discharged battery error
Improved communication with Studer Webportal
Improved security during emergency stop sequence
Improved Modbus communication, with more stable read/write rates
Improved fans control algorithm
Improved front panel LED chains control
New security parameter for locking remote actions from Studer Webportal or web services as read-only
Lowered default value for resetting "Adaptative SoC for backup" to 99% battery
Graphical User Interface:
- New integral update process, one step procedure straightforward for the user
- Added a release notes information after each update
- Improvements of texts, translations, error messages, display AC flex loads in synoptic, temporary warnings of AC-Source and beep
- New wifi connectivity preview, only compatible with Studer-provided dongles and WPA/WPA-2 networks
- Fixed a bug where portal could be disconnected, requiring a reboot
- Fixed a bug where a missing USB drive for CSV is not correctly displayed
- New battery configuration in wizard
- New grid code selection for countries that are already supported
- Read update files on USB drive at the root but also in "nxupdate" directory

next software system update v1.1.0.0

11.12.2022.

next software system update v1.0.22.0

This update focuses on stabilizing the current release, performs parameter corrections, fixes detected bugs and is mandatory for every next user.

In this software release:
- Reinforcement of warnings and error detection monitoring for ACD channels from sensor measurements
- Bit description improvement in Next3 Converter object

Please make sure that you have recorded the existing settings before performing a major system update.

next software system update v1.0.22.0

21.09.2022.

next software system update v1.0.20.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

In addition, this software release includes the following new functionalities:
- Improved functioning with TWICE Energy batteries
- Improved detection of abnormal running conditions
- Improved remote debugging functions
- Improved batteries' adaptive SoC for backup algorithm
- Added a property to improve user control on behavior with communication batteries
- Graphical User Interface:
- Improved autarky and self-consumption indicators
- Improvement of the "About" view
- Improved graphs details for grid consumption/production
- Fixed bugs where users could enter bad vales for some fields

Please make sure that you have recorded the existing settings before performing a major system update.

next software system update v1.0.20.0

12.08.2022.

next software system update v1.0.16.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

In addition, this software release includes the following new functionalities:
- New grid code Spain+Cyprus
- New properties or reading global system configuration
- Implementation of remote entry functionality for emergency stop
- Improvement of Studer Webportal communication
- Improvement of battery settings
- Improvement of AC anti-islanding detection algorithm
- Improvement of catalog capacities for remote debug
- Fix management of feeding power to generator AC source bug
- Fix AC source false positive warnings bug
- Graphical User Interface:
- Implementation of debug information functionality sent to Studer servers
- Installation / system accessible now through the center synoptic icon
- Fix non executed actions bug
- Renaming AUX relays preset with OnSource mode

Important information: This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with a software version equal or greater than V1.0.0.0. The basic code 815566 is sufficient. However, when updating from a previous version (v0.6.0.0 or previous) the upgrade will perform a parameter reset and the configuration assistant will guide you through the system settings.

Please make sure that you have recorded the existing settings before performing a major system update.

next software system update v1.0.16.0

27.06.2022.

next software system update v1.0.8.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

In addition, this software release includes the following new functionalities:
- New battery manufacturer compatibility: Twice Energy
- Implementation of settings for using generic Studer protocol batteries
- Implementation of End of discharge property + periodical charge to 100% for communicating batteries
- Implementation of command input functionality to disable battery charge
- Improvement of adaptive SOC for backup algorithm
- Improvement of remote debug possibilities
- Fix limited warning apparitions for solar over-temperature
- Fix Pylontech Batteries unneeded warning bugs
- Fix disabled grid-feeding settings bug
- Fix AUX contacts piloted by battery SOC bug
- Graphical User Interface:
- Implementation of mandatory grid code during the configuration assistant
- Improvement of customization views accord to level user
- Improvement of maximum current disabling for communicating batteries
- Fix synoptic solar power line inactivity bug
    - Fix time zone display during the configuration assistant bug
   - Fix command inputs display bug
   - Fix previous version incompatibility bugs

Important information: This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with the previous software (v1.0.0.0). The basic code 815566 is sufficient. When updating from a previous version (v0.6.0.0 or previous) the upgrade will perform a parameter reset and the configuration assistant will guide you through the system settings.

next software system update v1.0.8.0

19.05.2022.

next software system update v0.6.0.0

This update contains important new features, parameter corrections, fixes detected bugs and is mandatory for every next user.

In addition, this software release includes the following new functionalities:
- New grid code support for grid connection in Austria and Belgium
- New supported communicating batteries
- Implementation of preliminary version of Modbus RTU / TCP
- Implementation of new functionalities for piloting relays using system warnings or errors
- Improvement of lifetime for internal non-volatile memory
- Improvement of datalogging of the settings changes and clearing process for the major updates
- Improvement of default values for settings
- Improvement of the portal connection link
- Fix genset reconfiguration when user select "Grid feeding allowed" bug
- Graphical User Interface:
- New languages: French, German, Italian, Spanish
- Implementation of Autarky widget on dashboard view
- Improvement of errors and warnings
- Improvement of labels and descriptions in objects and properties
- Improvement of new GUID insertion method
- Fix nx interface connection to web portal bug

Important information: This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with the previous software (v0.5.10.0). When updating from a previous version (v0.4.0.0 or previous) the upgrade will perform a parameter reset and the configuration assistant will guide you through the system settings.

Please make sure that you have recorded the existing settings before performing a major system update.

next software system update v0.6.0.0

06.04.2022

next software system update v0.5.10.0

This update contains important security corrections, fixes detected bugs and is mandatory for every next user.

In addition, this software release includes the following new functionalities:
- Major software upgrades are only available at expert or higher level. Basic users can’t launch a major software update requiring to restart system configuration
- Configuration assistant will appear automatically after a major software update
- Fix restart bug after some major software upgrades
- Implementation of line to line voltages in addition to phase to line voltage for grid code management and overload detection.
- Improvement in priority configuration between AC sources
- Improvement in defective AC relay detection
- Various GUI improvements: views improvement, fix bugs in «Installation configuration», «Installation settings» and «Datalog» menus.
- New CSV file datalog export option for more than 7 days
- Fix datalog import and CSV files export bug
- New restart installation and graphic interface button (in Installation settings menu)

Important information: This is a standard software upgrade. The system will not reset the previous configuration if the system is up to date with the previous software (v0.5.0.0). When updating from a previous version (v0.4.0.0 or previous) the upgrade will perform a system restart and the configuration assistant will guide you through the system settings.
Please make sure that you have recorded the existing settings before performing a major system update.

next software system update v0.5.10

26.01.2022

next software system update v0.5.0.0

This update contains important security corrections, fixes detected bugs and is mandatory for every next user.
In addition, this software release includes the following new functionalities:

- New configuration preset for auxiliary contacts allowing the control of an external bypass relay
- New GridCode norms implemented (external certificate ongoing): Europe (EN-50549-1), Germany (VDE-AR-N 4105), Belgium (C10/11 Synergrid), Austria (TOR Erzeuger Typ A)
- Improvement in battery profiles management
- Implementation of periodic equalisation option for lead-acid batteries
- Offsets compensation for inverter current and external magnetic field
- Fix display AC flex power in FlexLoads mode
- Improve navigation in synoptic screen
- Add further description for error messages
- Partial integration of French navigation layer
- Improvement in installation configuration’s system resume
- Improvement of screen lists, addition of themes

Important information: This is a major software upgrade. The system will reset the previous configuration. When restarting the system, the configuration assistant will guide you through the system settings. Please make sure that you have recorded the existing settings before performing the system update.

next software system update V0.5.0.0

10.12.2021