5. Communication

foxBMS 2 supports communication with other high level devices (e.g., the VCU) through CAN.

5.1. DBC File

These files describe the CAN interface used by foxBMS 2. The .dbc-file has been created using PCAN Symbol Editor Version 6.5.2 from symbol file Version 6.0.

The .dbc-file and .sym-file are located in tools/dbc.

5.1.1. Supported CAN Messages

5.1.1.1. Insulation Measurement Device

ID

Name

Comment

Implementation file

022h

IMD_Request

can_cbs_tx_imd-request.c

023h

IMD_Response

can_cbs_rx_imd-response.c

037h

IMD_Info

can_cbs_rx_imd-info.c

5.1.1.2. Crash Dump

ID

Name

Comment

Implementation file

0FFh

f_CrashDump

Fatal error information

can_cbs_tx_crash-dump.c

5.1.1.3. BMS Status

ID

Name

Comment

Implementation file

210h

f_BmsStateRequest

Requests specific BMS behavior and gives the BMS required information from the higher-level control unit

can_cbs_rx_bms-state-request.c

220h

f_BmsState

Message contains general BMS state information

can_cbs_tx_bms-state.c

221h

f_BmsStateDetails

Details on flags transmitted by the ‘BmsState’ message

can_cbs_tx_bms-state-details.c

222h

f_BmsFatalError

Message contains the fatal error code

can_cbs_tx_fatal-error.c

5.1.1.4. Pack Information

ID

Name

Comment

Implementation file

231h

f_PackMinimumMaximumValues

can_cbs_tx_pack-minimum-maximum-values.c

232h

f_PackLimits

Electrical limit information

can_cbs_tx_pack-limits.c

233h

f_PackValuesP0

can_cbs_tx_pack-values-p0.c

234h

f_PackValuesP1

can_cbs_tx_pack-values-p1.c

235h

f_PackStateEstimation

can_cbs_tx_pack-state-estimation.c

5.1.1.5. String Information

ID

Name

Comment

Implementation file

240h

f_StringState

Message contains string related error and warning flags

can_cbs_tx_string-state.c

241h

f_StringMinimumMaximumValues

Message contains minimum and maximum cell temperature and cell voltage values of respective string

can_cbs_tx_string-minimum-maximum-values.c

243h

f_StringValuesP0

Message contains string voltage, current and power

can_cbs_tx_string-values-p0.c

244h

f_StringValuesP1

Message contains energy counting value

can_cbs_tx_string-values-p1.c

245h

f_StringStateEstimation

Message contains SOC, SOE and SOH state estimations

can_cbs_tx_string-state-estimation.c

5.1.1.6. Cell Information

ID

Name

Comment

Implementation file

250h

f_CellVoltages

Cell voltage measurement data

can_cbs_tx_cell-voltages.c

260h

f_CellTemperatures

Cell temperature measurement data

can_cbs_tx_cell-temperatures.c

270h

AFE_CellVoltages

Cell voltage measurement data

can_cbs_rx_cell-voltages.c

280h

AFE_CellTemperatures

Cell temperature measurement data

can_cbs_rx_cell-temperatures.c

5.1.1.7. Debug

ID

Name

Comment

Implementation file

300h

f_Debug

Reserved - for debug/development purpose only

can_cbs_rx_debug.c

301h

f_DebugResponse

Responses to the ‘Debug’ message

can_cbs_tx_debug-response.c

302h

f_DebugUnsupportedMultiplexerVal

can_cbs_tx_debug-unsupported-multiplexer-values.c

303h

f_DebugBuildConfiguration

Contains the build configuration

can_cbs_tx_debug-build-configuration.c

5.1.1.8. Aerosol Sensor

ID

Name

Comment

Implementation file

3C4h

BAS_AerosolSensor

can_cbs_rx_aerosol-sensor.c

5.1.1.9. Current Sensor

ID

Name

Comment

Implementation file

521h

IVT_String0_Current

Current sensor string 0: current

can_cbs_rx_current-sensor.c

522h

IVT_String0_Voltage1

Current sensor string 0: voltage 1

can_cbs_rx_current-sensor.c

523h

IVT_String0_Voltage2

Current sensor string 0: voltage 2

can_cbs_rx_current-sensor.c

524h

IVT_String0_Voltage3

Current sensor string 0: voltage 3

can_cbs_rx_current-sensor.c

525h

IVT_String0_Temperature

Current sensor string 0: temperature

can_cbs_rx_current-sensor.c

526h

IVT_String0_Power

Current sensor string 0: power

can_cbs_rx_current-sensor.c

527h

IVT_String0_CurrentCounter

Current sensor string 0: coulomb counting

can_cbs_rx_current-sensor.c

528h

IVT_String0_EnergyCounter

Current sensor string 0: energy counting

can_cbs_rx_current-sensor.c