Version A214-A214 | 02-11-2025

1. Fix grid/inverter balance issue with tighter control of the net-zero balance point.

Version A213-D213 | 27-08-2025 (Not Released)

1. Add new register for controlling BMS AI heating logic.
2. Optimise BMS no-communication recovery.
3. Fix BMS current register when values are negative (Engineer Data).

Version A212-D212 | 05-03-2025 (Public Release)

1. Modify import limit for EU customers to a range of 1–255 A.
2. Fix bug where target SOC was ignored for some users.
3. Optimise Blue CT PV power and energy calculations.
4. Optimise load energy calculation.

Version A211-D211 | 02-03-2025 (Test Only)

1. Add direct read support for 8 meters (Grid Services use).
2. Fix PV parasitic load displaying as generation on Blue CT. Blue CT is now directional (Positive / Negative / Auto, default Auto).

Version A210-D210 | 09-02-2025 (Public Release Mar 2025)

1. Correct reserve and cut-off register mapping.

Version A209-D209 | 27-12-2024 (Internal & Beta Tester Release)

1. Add additional SafeMode registers for Grid Services.
2. Optimise inverter front display for battery.

Version A208-D208 | 09-12-2024 (Not Published Externally)

1. Add BMS 3018 support with mini calibration on each full charge if required.
2. Add real-time registers allowing Safe Registers to be held only in RAM. When transitioning from RAM to EEPROM mode, a 2-second delay is applied and Safe Registers are written to EEPROM.
3. Set import limitation default to 100 A (disabled). Allowable range: 40–200 A.

Version A207-D207 | 23-08-2024 (Internal Use)

1. Fix sporadic EPS relay issue under certain rare grid conditions.
2. Send meter information (meter serial number) to the portal.
3. Add G100/2 import limitation function.
4. Add restart battery function.

Version A205-D205 | 22-05-2024

1. Optimise meter setting logic for mixed metering using new binary mapping addresses.
2. Optimise remote upgrade logic.

Version A204-D204 | 09-02-2024

1. Fix export limit overflow error.
2. Optimise battery removal mechanism when receiving battery sleep instruction.
3. Add additional EN50549 certifications.
4. Add quick protection function for battery overvoltage interruption.
5. Add EMS CPU parallel control parameters.

Version D203-A203 | 05-12-2023

1. Add new holding registers 498–508 for inverter fail message and BUG voltage.
2. Remove automatic identification of lithium and lead-acid batteries.
3. Add logic forcing discharge in AC-coupled mode when BMS is overcharging.
4. Optimise Off-Grid relay operation.

Version D202-A202 | 22-08-2023

1. Optimise AC charge-to-percentage behaviour to reduce oscillations.
2. Add and refine multiple EU grid certifications.
3. Correct negative temperature sampling issue (-0.1°C reading as 65535°C).

Version D201-A201 | 18-08-2023

1. Fully rewrite AC-coupled firmware with optimised code and faster response times, matching feature set of D535–A535.
2. Add Battery Pause register allowing DC pause of battery charge, discharge, or both.
3. Add G100 on/off flag for export limitation control.