DALY BMS Adds Communication Protocols for Solar Storage Integration

DALY BMS has updated its battery management systems (BMS) with expanded communication capabilities to facilitate integration within solar storage systems. The company now offers compatibility across CAN bus, RS485, and Bluetooth communication channels, alongside support for a wider range of inverter protocols, aiming to resolve prevalent installation issues.

Field failures where inverters and battery systems fail to communicate have often been traced back to incompatible BMS protocols. DALY BMS clarifies that merely having a CAN port does not guarantee communication; the BMS must support the specific protocol required by the inverter.

The CAN bus serves as a high-priority link for real-time data exchange between the battery and inverter, including state of charge, current and voltage limits, and fault information. RS485 is utilized for slower telemetry and integration with site-level energy management systems, typically using the Modbus RTU protocol. Bluetooth is included for installer and end-user diagnostics.

The company emphasizes the significance of "native protocol support," where the BMS firmware directly implements the inverter protocol. This simplifies commissioning and reduces field problems compared to systems requiring protocol development by the integrator. Other options include configurable or adaptable support, which demand greater technical expertise.

DALY BMS advises customers to verify the compatibility between their chosen inverter model and the BMS's supported protocols before purchase. This proactive check is presented as crucial for preventing costly on-site failures and ensuring system reliability.