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).

Discrete input signals 1 (bitfield):

bit 0 – “Battery cover”;

bit 1 – “Charger connected”;

bit 2 – “Power up/down request”;

bit 3 – “Inhibit charging”;

bit 4 – “Inhibit discharging”;

bit 5 – reserved (set to 0);

bit 6 – reserved (set to 0);

bit 7 – “Insulation status”;

bit 8 – “Charge request”;

bit 9 – “Precharge request”;

bit 10 – “Discharge request”;

bit 11 – reserved (set to 0);

bit 12 – reserved (set to 0);

bit 13 – reserved (set to 0);

bit 14 – “Interlock”;

bit 15 – “Fuse 1”.

Errors 1 (bitfield):

bit 0 – “Overcurrent”;

bit 1 – “Undervoltage”;

bit 2 – “Overvoltage”;

bit 3 – “Low DCH temperature”, temperature is too low for discharging;

bit 4 – “High DCH temperature”, temperature is too high for discharging;

bit 5 – “Battery cover”;

bit 6 – reserved (set to 0);

bit 7 – reserved (set to 0);

bit 8 – reserved (set to 0);

bit 9 – “Cell monitor offline”, connection with the cell monitor is lost;

bit 10 – “Critical error”;

bit 11 – “Crown error”, connection with the Crown forklift is lost;

bit 12 – “Cell count error”, number of cells is incorrect;

bit 13 – “HYG offline”, connection with the HYG forklift is lost;

bit 14 – “Need acknowledgement”, errors were detected in the past and should be acknowledged;

bit 15 – “Combilift offline”, connection with the Combilift forklift is lost;

bit 16 – “Short circuit”;

bit 17 – “High contactor temperature”, the discharging contactor is overheated;

bit 18 – reserved (set to 0);

bit 19 – “ADC error”, battery current cannot be measured by the ADC;

bit 20 – “Current sensor error”, wires which connect the current sensor with the BMS are damaged;

bit 21 – “CH contactor cycles error”, the charging contactor switches very often;

bit 22 – “DCH contactor cycles error”, the discharging contactor switches very often;

bit 23 – “Shunt offline”, connection with the BMS Current sensor is lost;

bit 24 – “Shunt error”, internal error of the BMS Current sensor;

bit 25 – reserved (set to 0);

bit 26 – “WDT reset”, device is reset by the watchdog timer;

bit 27 – “No temperature sensors”;

bit 28 – “Temperature sensor is shorted”;

bit 29 – “Spirit offline”, connection with the Spirit truck is lost;

bits 30–31 – reserved.

Internal signals (bitfield):

bit 0 – “Low SOC”;

bit 1 – “High charging current”;

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

bit 3 – “Allow charging” (0 – open, 1 – closed);

bit 4 – “Charging current present”;

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

bit 6 – “Discharging current present”;

bit 7 – “Voltage too high” (EV);

bit 8 – “Heater” (0 – off, 1 – on);

bit 9 – “Cooler” (0 – off, 1 – on);

bit 10 – “HYG shutdown”, command from the HYG forklift to open the discharging contactor;

bit 11 – “Init”, initialization signal (during the initialization current sensor is calibrating and BMS Logic devices are scanning);

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

bit 13 – “Combilift shutdown”, command from the Combilift forklift to open the discharging contactor;

bit 14 – “Cell analysis”, signal of started analysis of the cells;

bit 15 – reserved (set to 0);

bit 16 – reserved (set to 0);

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

bit 18 – “Acknowledgement of power down”;

bit 19 – “Crown EWS”;

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

bit 21 – “Service reset”;

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

bit 23 – “Ready to charge” (the voltage of the cells is less than the threshold value and there are no errors that prohibit charging);

bit 24 – “Ready to discharge” (the voltage of the cells is greater than the threshold value and there are no errors that prohibit discharging);

bit 25 – “Power up”;

bit 26 – “External 1”;

bits 27–31 – reserved.

Discrete output signals (bitfield):

bit 0 — state of the output #1;

bit 1 — state of the output #2;

bit 2 — state of the output #3;

bit 3 — state of the output #4;

bits 4-15 — not used.

MOSFETs states (bitfield):

bit 0 — state of the MOSFET #1;

bit 1 — state of the MOSFET #2;

bit 2 — state of the MOSFET #3;

bit 3 — state of the MOSFET #4;

bits 4-15 — not used.

Errors 2 (bitfield):

bit 0 – “Low CH temperature”, temperature is too low for charging;

bit 1 – “High CH temperature”, temperature is too high for charging;

bit 2 – “SD mount error”;

bit 3 – “SD read/write error”;

bit 4 – “Unallowable charging”, charging the battery through the discharging contactor;

bit 5 – “Stuck contactor”;

bit 6 – reserved (set to 0);

bit 7 – reserved (set to 0);

bit 8 – “Insulation fault”;

bit 9 – reserved (set to 0);

bit 10 – reserved (set to 0);

bit 11 – reserved (set to 0);

bit 12 – "Contactor feedback error";

bit 13 – “General error”;

bit 14 – reserved (set to 0);

bit 15 – reserved (set to 0);

bit 16 – reserved (set to 0);

bit 17 – "Precharge error";

bit 18 – reserved (set to 0);

bit 19 – "Current limit error";

bits 20-31 — reserved.

State of the cell monitor (bitfield):

bit 0 — device is present;

bit 1 — device is online;

bit 2 — device is ready;

bit 3 — data from the device is actual;

bit 4 — temperature sensor #1 is present;

bit 5 — temperature sensor #2 is present;

bit 6 — temperature sensor #1 is shorted;

bit 7 — temperature sensor #2 is shorted;

bits 8-15 — reserved.

Cell balancing flags (bitfield):

bit i — balancing resistor is connected to the (i+1)^th cell.

Array of cell states. Each element of the array corresponds to a cell and is a bitfield:

bit 0 — cell is present;

bit 1 — temperature sensor is present;

bit 2 — need to connect a balancing resistor to the cell;

bit 3 — balancing resistor is connected to the cell;

bit 4 — temperature sensor is shorted;

bit 5 — wires are connected to the cell;

bit 6 — the cell is balancing;

bits 7-15 — reserved.

Discrete input signals 2 (bitfield):

bit 0 – “Fuse 2”;

bit 1 – “Fuse 3”;

bit 2 – “Circuit breaker status”;

bit 3 – "Balancing request";

bit 4 – "Close Main contactor";

bit 5 – "Close External 1";

bits 6-15 – reserved.

Error flag:

0 — no errors;

1 — there are some errors.

Battery state:

0 – Unknown;

1 – Charging ON;

2 – Charging OFF;

3 – Relaxed (after charging);

4 – Discharging ON;

5 – Discharging OFF;

6 – Relaxed (after discharging).

Final battery current, A

Note — Typically it is the sum of the values measured by the main and auxiliary current sensors

Command to acknowledge errors in the errors journal (bitfield). Each i^th bit corresponds to (i+1) record.

Notes:

1 – After the errors are acknowledged, the register value will be set to 0.

2 – To acknowledge all errors, set 0xFFFFFFFF.

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 "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 "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".

Software control of the "Close External 1" signal. Allowable values:

0 – clear the signal;

1 – set the signal;

2-65535 – use the physical input "Close External 1".