CAN-bus

The communication between the electronics within the solar boat is build upon the CAN-bus protocol, where the datalogger logs the CAN messages. Pinout of our Binder connectors are:

Colours of the Standard Binder CAN Cable and its pinout

Binder Connector pin Number	Wire Colour	Signal on wire
1	White	CAN H
2	Black	Ground
3	Gray	Safety
4	Blue	CAN L
5	Brown	24v Power

Note that the M12 connectors have a different pinout and thus different colour wires. To make compatibility between systems easier the binder connectors are soldered with the wrong colored wires so that plugging in a M12 device results in the right signals being passed to the Binder connector. This Compatibility pinout is shown below:

NON-STANDARD!! Colours when connecting an M12 cable to a binder connector NON-STANDARD!!

Binder Connector pin Number	Wire Colour	Signal on wire
1	Gray	Safety
2	White	24v Power
3	Blue	Ground
4	Black	CAN H
5	Brown	CAN L

Battery (MG) CAN-format (No longer used)

As of now the MG electronics battery is used in the solar boat. Although a new battery is being developed, this MG battery is still in use (as of September '22). Therefore the battery format is given here below.

Node-ID	Index	Subindex	Data	Type	Resolution
0x302	0x2005	0x01	Voltage [V]	uint16_t	1 [mV/LSB]
		0x02	Current [A]	int16_t	10 [mA/LSB]
		0x03	Current Discharge [A]	int16_t	10 [mA/LSB]
		0x04	Current Charge [A]	int16_t	10 [mA/LSB]
		0x05	State-of-Charge [%]	int8_t	1 [%/LSB]
		0x06
		0x07	Time to Go [min]	uint16_t	1 [min/LSB]
0x402	0x2005	0x09	Cell Temperature High [°C]	int8_t	1 [°C/LSB]
		0x0A
		0x0B	Cell Temperature Low [°C]	int8_t	1 [°C/LSB]
		0x0C	Cell Voltage High [V]	uint16_t	1 [mV/LSB]
		0x0D	Cell Voltage Low [V]	uint16_t	1 [mV/LSB]
		0x0E	BMS State	uint32_t
		0x0F	Temperature Collection [°C]	4x uint8_t	1 [°C/LSB]
0x482	0x2000	Cell nr	Cell [Cell_nr] Voltage [V]	uint16_t	1 [mV/LSB]
0x202	Don't Care	Don't Care	Power Level [%]	uint8_t	1 [%/LSB]