Data Format; Data Size - Nuvation Energy NUV300-BC-12 Product Manual

•
connecting/disconnecting the battery to the DC bus
•
clearing faults and/or warnings
•
updating the controller heartbeat (i.e. watchdog)
These capabilities are described in

8.2.2. Data Format

The protocol is based on the CAN message frames. A reference for the CAN message frames can be
found at https://en.wikipedia.org/wiki/CAN_bus.

8.2.3. Data Size

The size of the register data transmitted/received in a CAN frame will depend of the variable type of
the register. The type and corresponding variable type for all registers used in battery management
system can be found in
integer and is 4 bytes in length. All register types can be read from the Operator Interface Registers
menu option as discussed in
Document ID: NE-PM-002
Section 7.8.1.
7.1.2. For example a variable type of int32 represents a signed 32 bit
Section
Section 6.3.1
Nuvation Energy Low-Voltage BMS - Product Manual
146 Rev 1.2, 2021-03-03
Curie Update 1