Version A319-D319 | 22-12-2025

1. New feature: Add 3-phase meter support.
2. Optimisation: Battery data error checking improvements.

Version A318-D318 | 26-08-2025

1. Fix: Correct load reading when external PV metering is disabled but still connected for third-party use.
2. Fix: BMS current value now observes correct signed integer notation.

Version A317-D317 | 07-08-2025

1. New feature: Add BMS AI self-heating logic. Enable/disable in inverter controls (requires BMS 3022+ or 4009+).
2. New feature: External generation meters include/exclude option for inverter totals (default: include).
3. Bug fix: Clear hung battery data registers if BMS communication is lost.

Version A316-D316 | 05-04-2025

1. Add wider import limit for EU (1–255 A).
2. Optimise PV energy when using external PV systems.
3. Fix leap year bug.
4. Optimise off-grid voltage and frequency display during overload conditions.
5. Fix charge target SOC bug where the target was sometimes ignored.

Version A315-D315 | 09-02-2025

1. Correct reserve and cutoff register mapping.

Version A314-D314 | 27-12-2024

Beta users only

1. Add additional registers for Grid Services.
2. Optimise no-battery operation behaviour.
3. Optimise front inverter display.

Version A313-D313 | 09-12-2024

Internal

1. Add BMS 3018 support. Mini calibration performed on full charge if required.
2. Add real-time registers allowing “Safe Registers” to be held in RAM. When transitioning to EEPROM, a 2-second delay applies before writing.
3. Import limitation default remains 100 A and disabled. Allowable range changed to 40–200 A.

Version A312-D312 | 01-10-2024

Internal

1. Add BMS 3018 support.

Version A311-D311 | 23-08-2024

Internal & beta users

1. Fix off-grid discharge cutoff.
2. Add import limitation (0–200 A configurable).
3. Fix relay issue under rare grid conditions causing incorrect EPS operation.
4. Add BMS reset command.

Version A309-D309 | 16-05-2024

1. Add additional PV total registers for external PV included in internal PV totals (portal update required).
2. Add inverter mode register (Hybrid/String) to suppress intended “battery not present” warnings.
3. Optimise firmware file removal after update.
4. Add Australian Grid Codes A, B, C and New Zealand Grid Code parameters.
5. Add Australian DRM function and optimise communication with Australian DRM dongle firmware 9xx.

Version A308-D308 | 09-02-2024

1. Optimise SOC calibration behaviour near 5%.
2. Fix export limit overflow error.
3. Optimise battery removal mechanism when sleep function is used.
4. Fix Off-Grid mode error.
5. Add EN50549 certifications.
6. Optimise PV MPPT logic.
7. Add quick protection function for battery overvoltage interruption.
8. Add EMS CPU parallel control parameters.
9. Fix 10-stage charge/discharge crossing midnight bug.

Version D307-A307 | 13-10-2023

1. Optimise ageing test behaviour.
2. Change initial GEN3 battery undervoltage protection from 45 V to 43.2 V.

Version D306-A306 | 29-09-2023

1. Optimise export and import EnergyToday zeroing at midnight.
2. Optimise inverter status display during charging.
3. Optimise 418 meter information query.
4. Reduce MPPT minimum voltage from 130 V to 120 V.
5. Optimise SOC handling after PCS–BMS communication loss beyond 30 seconds.
6. Fine-tune off-grid control parameters.
7. Increase PV high-voltage limit from 300 W to 3600 W.
8. Modify grid-to-off-grid relay cutoff delay.
9. Remove automatic lithium/lead-acid identification to reduce overcharge and comms risk.

Version D305-A305 | 07-07-2023

1. Add 0-second switching (UPS) function.

Version D304-A304 | 20-06-2023

1. Add G98 NI and G99 NI certifications.
2. Optimise inverter overcurrent behaviour when battery disconnects.
3. Optimise CRC handling in 0x10 multi-set function.
4. Optimise SOC clearing logic on battery fault disconnect.
5. Optimise current compensation loop.

Version D303-A303 | 19-05-2023

1. Add 0x10 multi-register setting function.
2. Optimise AC charge logic allowing discharge when SOC is greater than set point.
3. Fix solar export issues when battery is full.
4. Increase single PV string power limit to 1.5 TPn.

Version D302-A302 | 03-04-2023

1. Add ageing mode allowing two inverters to operate together.
2. Add EN50549 security certification.
3. Add charging and discharging power calibration coefficients.
4. Optimise refresh rate of detailed battery information.
5. Optimise AC charge-to-percentage mode settings.
6. Optimise grid power readings.
7. Optimise PV power readings.
8. Lower MPPT start voltage to 130 V.
9. Increase Buck-Boost overtemperature protection and load reduction threshold by 5°.