Version ZAAA111111 | 14-11-2025

1. Optimize meter communications when using LoRa.
2. Correct meter power factor data reading via protocol.
3. Optimise Active Power vs Frequency operation.
4. Revise DRM function for updated Australian standards.
5. Increase battery fault data reporting to the portal, particularly for Off-Grid, BMS, and overload fault codes.

Version ZAAA101010 | 08-08-2025

1. Updated EN50549 certification for EU.
2. Off-Grid optimisations to support more load types.
3. Front cover LED logic optimisation while in String mode.
4. Fix fan error logic.
5. Add support for older SDM630 meters and newer GEM630 meters with protocol improvements.

Version ZAAA090909 | 29-03-2025

1. Optimize over-temperature load reduction curve.
2. Optimise PV versus battery priority behaviour.
3. Add function to read Meter_Info and Meter_Data directly (required for Grid Services).
4. Optimise PV start-up logic.
5. Optimise load and grid power calculations when no PV is present (AC Coupled).
6. Optimise EPS relay PWM control signal.
7. New function: calibration of battery clusters (requires BABA0007 or higher).
8. New function: add meter wiring detection error.
9. Add Czech Grid Code.
10. Minor additional bug fixes.

Version ZAAA080808 | 27-12-2024

1. Optimise EPS low-voltage sampling.
2. Optimise Off-Grid overload logic (1.1× permitted).
3. Fix incorrect discharge power while charging.
4. Fix EPS spurious issues (EU).
5. Optimise fan logic.
6. Add DRM and DIDO functions for additional markets.
7. Optimise front LED display for battery.
8. Add SafeRegisters for Grid Services.
9. Change import limitation default from 30 A to 100 A.

Version ZAAA070707 | 08-08-2024

1. Optimise grid-connected operation where full load was not achievable under certain conditions.
2. Update safety certification content.
3. Modify fan speed control logic.
4. Add basic SOC and charge/discharge power control under Eco Mode.
5. Optimise unbalance control.
6. Update default safety parameter values.
7. Resolve power display issue where inverter power between −100 W and 0 W displayed incorrectly.
8. Prevent shutdown when BypassEn / N_PeEn enable bit is set.
9. Add fault code display for inputs 1300–1307 and inputs 1333–1340 for internal debugging.
10. Add separate configurable safety and power registers (hold1132–1133).
11. Optimise BDC SOC and power settings.
12. Add active balancing software identification version for remote upgrades.
13. Add active balancing parameters to BMS and external communication protocols.
14. Add battery remote setting, failure event query, and upload functions.
15. Add software version display registers input401–412.

Version A096

1. Fix PV reading issue on large external PV arrays.

3-Phase Hybrid Firmware Version 4.4.4 | 15-04-2024

DSP

1. Optimise inverter detection method to prevent power oversampling at high bus voltage.
2. Add active input power limit.
3. Optimise on-grid / off-grid mode switching.
4. Optimise DCI detection issue on 20 kW units.
5. Fix abnormal frequency display when grid input is absent.
6. Optimise output power oversampling under certain conditions.
7. Prevent battery voltage and current displaying zero when no battery is connected.
8. Add request current change limit to prevent overcurrent from sudden changes.
9. Set discharge limit default to 4%.

ARM

1. Resolve BMS parallel upgrade issue.
2. Require calibration parameter reset when upgrading to version 4.4.4 for the first time.
3. Add support for 8 meters.
4. Add 10 charge/discharge scopes and SOC settings.
5. Extend error display time from 10 seconds to 30 seconds.
6. Update protocol map.
7. Optimise export limit handling for large values.
8. Prevent downgrade to firmware versions 1.1.1 or 2.2.2.
9. Change PV total power calculation logic.
10. Differentiate DRM functionality for old and new 11 kW inverters via hardware.
11. Add register 347 to manually enable or disable LED lighting.