Hardware version:

byte 0 — minor;

byte 1 — major.

Firmware version:

byte 0 — patch;

byte 1 — minor;

byte 2 — major;

byte 3 — not used (set to 0).

Bootloader version:

byte 0 — patch;

byte 1 — minor;

byte 2 — major;

byte 3 — not used (set to 0).

Battery state of health (SOH), %

Note – The value is calculated as a minimal SOH among battery modules.

Battery balancing efficiency, %

Note – The value is calculated as a minimal balancing efficiency among battery modules.

Battery state (enumeration):

0 – Off (battery is off);

1 – Pre-balancing (the battery modules are precharging);

2 – Balancing (the battery modules are joined and balancing);

3 – Precharging (the modular battery is precharging);

4 – Idle (the modular battery is idle (charging and discharging currents are not detected));

5 – Charging (the modular battery is charging);

6 – Discharging (the modular battery is discharging).

Internal signals (bitfield):

bit 0 – signal “Init” (current sensor calibration or battery modules scanning is performed);

bit 1 – signal “Charging” (0 – open, 1 – closed);

bit 2 – signal “Discharging” (0 – open, 1 – closed);

bit 3 – signal “Charging current present”;

bit 4 – signal “Discharging current present”;

bit 5 – signal “Charging/Discharging” (0 – open, 1 – closed);

bit 6 – signal “Precharging” (0 – open, 1 – closed);

bit 7 – signal “Interlock”;

bit 8 – signal “Fuse 1”;

bit 9 – signal “Fuse 2”;

bit 10 – signal “Fuse 3”;

bit 11 – signal “Heater” (0 – off, 1 – on);

bit 12 – signal “Cooler” (0 – off, 1 – on);

bit 13 – signal “Main contactor” (0 – open, 1 – closed);

bits 14-29 – reserved (set to 0);

bit 30 – reserved (set to “1”);

bit 31 – no used.

Common errors 1 (bitfield):

bit 0 – error “Battery cover”;

bit 1 – error “Modules offline”;

bit 2 – “Critical error”;

bit 3 – error “Voltage unbalance (CH)”;

bit 4 – error “Voltage unbalance (DCH)”;

bit 5 – error “Current unbalance (CH)”;

bit 6 – error “Current unbalance (DCH)”;

bit 7 – error “Charging current unbalance”;

bit 8 – error “Discharging current unbalance”;

bit 9 – reserved (set to 0);

bit 10 – “CH contactor feedback error”;

bit 11 – “DCH contactor feedback error”;

bit 12 – “CH/DCH contactor feedback error”;

bit 13 – “Insulation fault”;

bit 14 – error “WDT reset”;

bits 15-24 – reserved (set to 0);

bit 25 – “Mount error”;

bit 26 – “FS error”;

bit 27 – reserved (set to 0);

bit 28 – “PCH contactor feedback error”;

bit 29 – “Main contactor feedback error”;

bit 30 – “Precharge error”;

bit 31 – “Current limit error”.

Voltage unbalance CH errors (bitfield):

bit i – error of the (i+1)^th battery module.

Voltage unbalance DCH errors (bitfield).

Note – Registry mapping is the same as for registers 0x1024-0x1025

Current unbalance CH errors (bitfield).

Note – Registry mapping is the same as for registers 0x1024-0x1025

Current unbalance DCH errors (bitfield).

Note – Registry mapping is the same as for registers 0x1024-0x1025

Charging current unbalance errors (bitfield).

Note – Registry mapping is the same as for registers 0x1024-0x1025

Discharging current unbalance errors (bitfield).

Note – Registry mapping is the same as for registers 0x1024-0x1025

Cumulative internal signals (logical OR of all “Internal signals” values of the battery modules; bitfield):

bit 0 — signal "Low SOC";

bit 1 — signal "High charging current";

bit 2 — signal “Charging” (0 – open, 1 – closed);

bit 3 — signal "Allow charging" (0 – open, 1 – closed);

bit 4 — signal "Charging current present";

bit 5 — signal “Discharging” (0 – open, 1 – closed);

bit 6 — signal "Discharging current present";

bit 7 — signal "Voltage too high for charging";

bit 8 — signal "Heater" (0 – off, 1 – on);

bit 9 — signal "Cooler" (0 – off, 1 – on);

bit 10 — signal “Shutdown request (HYG/Spirit)”;

bit 11 — signal “Init” (current sensor calibration or BMS Logic scanning is performed);

bit 12 — signal “Precharging” (0 – open, 1 – closed);

bit 13 — signal “Shutdown request (Combilift)”;

bit 14 — signal "Cell analysis";

bit 15 — signal “Balancing 1”;

bit 16 — signal “Balancing 2”;

bit 17 — signal “Discharging (AUX)” (0 – open, 1 – closed);

bit 18 — signal “Power down ACK”;

bit 19 — signal “Crown EWS”;

bit 20 — signal “Main contactor” (0 – open, 1 – closed);

bit 21 — signal “Service reset”;

bit 22 — signal “Charging/Discharging” (0 – open, 1 – closed);

bit 23 — signal “Ready to charge”;

bit 24 — signal “Ready to discharge”;

bit 25 — signal “Power up”;

bits 26-31 — not used.

Cumulative errors 1 (logical OR of all “Errors 1” values of the battery modules; bitfield):

bit 0 — error "Overcurrent";

bit 1 — error "Undervoltage";

bit 2 — error "Overvoltage";

bit 3 — error "Low temperature (DCH)";

bit 4 — error "High temperature (DCH)";

bit 5 — error "Battery cover";

bit 6 — error "High humidity";

bit 7 — error "Water";

bit 8 — error "Logic high temperature";

bit 9 — error "Logic offline";

bit 10 — "Critical error";

bit 11 — "Crown error";

bit 12 — "Cell count error";

bit 13 — error "HYG offline";

bit 14 — reserved (set to 0);

bit 15 — error "Combilift offline";

bit 16 — error "Short circuit";

bit 17 — error "High contactor temperature";

bit 18 — "Logic count error";

bit 19 — "ADC error";

bit 20 — “Current sensor error”;

bit 21 — “CH contactor cycles error”;

bit 22 — “DCH contactor cycles error”;

bit 23 — error "Shunt offline";

bit 24 — “Shunt error”;

bit 25 — reserved (set to 0);

bit 26 — error “WDT reset”;

bit 27 — error "No temperature sensors";

bit 28 — error "Temperature sensor shorted";

bit 29 — error “Spirit offline”;

bits 30-31 – not used.

Cumulative errors 2 (logical OR of all “Errors 2” values of the battery modules; bitfield):

bit 0 — error "Low temperature (CH)";

bit 1 — error “High temperature (CH)”;

bit 2 — reserved (set to 0);

bit 3 — reserved (set to 0);

bit 4 — error “Unallowable charging”;

bit 5 — error “Stuck contactor”;

bit 6 — “CH contactor feedback error”;

bit 7 — “DCH contactor feedback error”;

bit 8 — “Insulation fault”;

bit 9 — “PCH contactor feedback error”;

bit 10 — “CH/DCH contactor feedback error”;

bit 11 — “Main contactor feedback error”;

bit 12 — reserved (set to 0);

bit 13 — “General error”;

bits 14-31 — not used.

Remaining discharge time, second.

Note – The value 0xFFFFFFFF corresponds to the case when the device cannot calculate the remaining time.

Common errors 2 (bitfield):

bits 0-31 – not used.

Discrete input signals (bitfield):

bit 0 – signal “Battery cover”;

bit 1 – signal “Charge request”;

bit 2 – signal “Precharge request”;

bit 3 – signal “Discharge request”;

bit 4 – signal “CH contactor feedback”;

bit 5 – signal “DCH contactor feedback”;

bit 6 – signal “CH/DCH contactor feedback”;

bit 7 – signal “Insulation status”;

bit 8 – signal “Join to charge”;

bit 9 – signal “Join to discharge;

bit 10 – signal “PCH contactor feedback”;

bit 11 – signal “Main contactor feedback”;

bits 12-31 – not used.

Flags indicating that the battery modules are enabled but not detected (bitfield):

bit i – the (i+1)^th battery module is enabled but not detected.

Flags indicating that the battery modules are detected (bitfield):

bit i – the (i+1)^th battery module is detected.

Flags indicating that the battery modules are online (bitfield):

bit i – the (i+1)^th battery module is online.

Flags indicating that the battery modules are offline (bitfield):

bit i – the (i+1)^th battery module is offline.

0x2000

(offset 0x0000)

Module state (enumeration):

0 – Unknown;

1 – Charging ON;

2 - Charging OFF;

3 – Relaxed (after charging);

4 – Discharging ON;

5 – Discharging OFF;

6 – Relaxed (after discharging).

0x2001

(offset 0x0001)

0x2002

(offset 0x0002)

0x2003

(offset 0x0003)

BMS firmware version.

Example: “1.59.1”

0x2009

(offset 0x2009)

0x200A-0x200B

(offset 0x000A)

0x200C-0x200D

(offset 0x000C)

0x200E-0x200F

(offset 0x000E)

0x2010-0x2011

(offset 0x0010)

0x2012-0x2013

(offset 0x0012)

0x2014-0x2015

(offset 0x0014)

0x2016-0x2017

(offset 0x0016)

0x2018-0x2019

(offset 0x0018)

0x201A-0x201B

(offset 0x001A)

0x201C-0x201D

(offset 0x001C)

0x201E-0x201F

(offset 0x001E)

0x2020-0x2021

(offset 0x0020)

0x2022-0x2023

(offset 0x0022)

0x2024-0x2025

(offset 0x0024)

0x2026-0x2027

(offset 0x0026)

Internal signals (bitfield).

Note – Registry mapping is the same as for 0x1030-0x1031.

0x2028-0x2029

(offset 0x0028)

Errors 1 (bitfield).

Note – Registry mapping is the same as for 0x1032-0x1033.

0x202A-0x202B

(offset 0x002A)

Errors 2 (bitfield).

Note – Registry mapping is the same as for 0x1034-0x1035.

0x202C-0x202D

(offset 0x002C)

Discrete input signals (bitfield):

bit 0 — signal "Battery cover";

bit 1 — signal "Charger connected";

bit 2 — signal "Power up/down request";

bit 3 — signal "Inhibit charging";

bit 4 — signal "Inhibit discharging";

bit 5 — signal “CH contactor feedback”;

bit 6 — signal “DCH contactor feedback”;

bit 7 — signal “Insulation status”;

bit 8 – signal “Charge request”;

bit 9 – signal “Precharge request”;

bit 10 – signal “Discharge request”;

bit 11 – signal “PCH contactor feedback”;

bit 12 – signal “CH/DCH contactor feedback”;

bit 13 – signal “Main contactor feedback”;

bit 14 – signal “Interlock”;

bit 15 – signal “Fuse 1”;

bit 16 – signal “Fuse 2”;

bit 17 - signal “Fuse 3”;

bit 18 – signal “Circuit breaker status”;

bits 19-31 – not used.

0x202E-0x202F

(offset 0x002E)

Module #2 state: base address 0x2200

Note – Registries have the same format as for Module #1

Module #3 state: base address 0x2400

Note – Registries have the same format as for Module #1

Module #4 state: base address 0x2600

Note – Registries have the same format as for Module #1

Module #5 state: base address 0x2800

Note – Registries have the same format as for Module #1

Module #6 state: base address 0x2A00

Note – Registries have the same format as for Module #1

Module #7 state: base address 0x2C00

Note – Registries have the same format as for Module #1

Module #8 state: base address 0x2E00

Note – Registries have the same format as for Module #1

Module #9 state: base address 0x3000

Note – Registries have the same format as for Module #1

Module #10 state: base address 0x3200

Note – Registries have the same format as for Module #1

Module #11 state: base address 0x3400

Note – Registries have the same format as for Module #1

Module #12 state: base address 0x3600

Note – Registries have the same format as for Module #1

Module #13 state: base address 0x3800

Note – Registries have the same format as for Module #1

Module #14 state: base address 0x3A00

Note – Registries have the same format as for Module #1

Module #15 state: base address 0x3C00

Note – Registries have the same format as for Module #1

Module #16 state: base address 0x3E00

Note – Registries have the same format as for Module #1

Module #17 state: base address 0x4000

Note – Registries have the same format as for Module #1

Module #18 state: base address 0x4200

Note – Registries have the same format as for Module #1

Module #19 state: base address 0x4400

Note – Registries have the same format as for Module #1

Module #20 state: base address 0x4600

Note – Registries have the same format as for Module #1

Module #21 state: base address 0x4800

Note – Registries have the same format as for Module #1

Module #22 state: base address 0x4A00

Note – Registries have the same format as for Module #1

Module #23 state: base address 0x4C00

Note – Registries have the same format as for Module #1

Module #24 state: base address 0x4E00

Note – Registries have the same format as for Module #1

Module #25 state: base address 0x5000

Note – Registries have the same format as for Module #1

Module #26 state: base address 0x5200

Note – Registries have the same format as for Module #1

Module #27 state: base address 0x5400

Note – Registries have the same format as for Module #1

Module #28 state: base address 0x5600

Note – Registries have the same format as for Module #1

Module #29 state: base address 0x5800

Note – Registries have the same format as for Module #1

Module #30 state: base address 0x5A00

Note – Registries have the same format as for Module #1

Module #31 state: base address 0x5C00

Note – Registries have the same format as for Module #1

Module #32 state: base address 0x5E00

Note – Registries have the same format as for Module #1

Software control of the "Battery cover" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Battery cover".

Software control of the "Charger connected" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Charger connected".

Software control of the "Power up/down request" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Power down request".

Software control of the "Inhibit charging" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Inhibit charging".

Software control of the "Inhibit discharging" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Inhibit discharging".

Software control of the "CH contactor feedback" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Charging contactor feedback".

Software control of the "DCH contactor feedback" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Discharging contactor feedback".

Software control of the "Insulation status" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Insulation status".

Software control of the "Charge request" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Charge request".

Software control of the "Precharge request" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Precharge request".

Software control of the "Discharge request" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Discharge request".

Software control of the "PCH contactor feedback" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "PCH contactor feedback".

Software control of the "CH/DCH contactor feedback" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "CH/DCH contactor feedback".

Software control of the "Main contactor feedback" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Main contactor feedback".

Software control of the "Interlock" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Interlock".

Software control of the "Fuse 1" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Fuse 1".

Software control of the "Fuse 2" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Fuse 2".

Software control of the "Fuse 3" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Fuse 3".

Software control of the "Circuit breaker status" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Circuit breaker status".

Software control of the "Balancing request" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Balancing request".

Software control of the "Close Main contactor" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Close Main contactor".