Skip to main content
Firmware Stable

BMS support

OPHION application supports multiple Battery Management Systems (BMS). The BMS should monitor battery state and enable dynamic current limitation in error conditions via the controller. This prevents dangerous situations where BMS power cutoff during operation could occur - the controller can gradually limit power before a BMS-initiated cutoff.

tip
  • Contact us if you need support for additional BMS types.
  • BMS CAN messages are documented in the BMS CAN messages section.
warning

Dynamic DC-side current limitation requires non-zero values for /driver/limiter/ibpos and /driver/limiter/ibneg.

Preparation​

All BMS connections use CAN bus. Ensure matching CAN speeds between BMS and controller, and proper CAN termination.

tip

Controllers use 1 Mbps CAN speed by default. To modify controller CAN speed, refer to: msgconf

Common BMS Settings​

These settings apply to all BMS types.

/bms/bmstype​

/bms/bmsopts​

Only applicable when bmstype is non-zero.

siliXcon BMS​

bmsopts = 1

SiliXcon BMS transmits all required information automatically without additional configuration.