device library

Victron GX (Modbus-TCP register list)

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

pointaddress (0-based)typescaleunit
battery_voltage_system840U160.1
battery_current_system841I160.1
battery_power_system842I161
battery_soc_system843U161
battery_state_system844U161
pv_dc_coupled_power850U161
pv_dc_coupled_current851I160.1
dc_system_power860I161
vebus_input_voltage_p13U160.1
vebus_input_voltage_p24U160.1
vebus_input_voltage_p35U160.1
vebus_input_current_p16I160.1
vebus_input_current_p27I160.1
vebus_input_current_p38I160.1
vebus_input_frequency_p19I160.01
vebus_output_voltage_p115U160.1
vebus_output_voltage_p216U160.1
vebus_output_voltage_p317U160.1
vebus_output_current_p118I160.1
vebus_output_current_p219I160.1
vebus_output_current_p320I160.1
vebus_output_frequency21I160.01
vebus_battery_voltage26U160.01
vebus_battery_current27I160.1
vebus_state31U161
vebus_battery_temperature61I160.1
battery_voltage259U160.01
battery_current261I160.1
battery_temperature262I160.1
battery_soc266U160.1
battery_capacity309U160.1
solarcharger_battery_voltage771U160.01
solarcharger_battery_current772I160.1
solarcharger_pv_voltage776U160.01
solarcharger_pv_power789U160.1
solarcharger_pv_power_32792U32BE1
grid_l1_power2600I161
grid_l2_power2601I161
grid_l3_power2602I161
grid_l1_voltage2616U160.1
grid_l1_current2617I160.1
grid_l2_voltage2618U160.1
grid_l2_current2619I160.1
grid_l3_voltage2620U160.1
grid_l3_current2621I160.1

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

Device not here? Upload its manual and get a checked map back. It's free.

Want it confirmed against your own device? Order hardware verification. If it doesn't check out, you don't pay.

Building on a lot of devices? License the library — machine-readable maps, the firmware matrix, and API access.