Version SG050505 | 18-04-2025

1. Set import limit to the maximum available range of 1–255 A.
2. Optimise reserve/cut-off register usage, improving transition from Off-Grid back to On-Grid.
3. Add external PV calculations to internal PV energy generation values.
4. Optimise energy calculation when using a CT.
5. Other internal minor improvements.

Version SG040404 | 02-03-2025

1. Add external metering support (direct read for Grid Services) using function codes 0x04 and 0x16 for ID01–08.
2. Alter import limit range to 1–200 A (previously 40–200 A).

Version SG030303 | 17-01-2025

1. Support multiple battery stacks with parallel battery functions.
2. Export limit optimisation.
3. Internal logic optimisation.
4. Add battery force wake (activate) function via PV or AC.
5. Reserve and cut-off optimisations.

Version SG020202 | 12-12-2024

1. Various design optimisations for off-grid performance.
2. AFCI logic optimisation.
3. Add off-grid power readings.
4. Energy display optimisation.
5. Add SafeRegister function for Grid Services.
6. Add import limitation function; default 100 A and disabled.

Version SG010101 | 01-12-2024

1. Initial release version for testing and factory use only.