Reliable communication between the Battery Management System (BMS) and the solar inverter is critical for system safety, accurate State of Charge (SOC) calibration, and long battery lifespan. SUN-SOLARISIA lithium storage systems feature multi-protocol closed-loop communication architecture.
Our smart BMS comes pre-loaded with automated CANbus and RS485 communication protocols, field-tested and compatible with leading hybrid and off-grid inverter brands:
CANbus Protocol Brands: Deye, Victron Energy, Growatt, GoodWe, Solis, Sofar Solar, Luxpower, SMA.
RS485 Protocol Brands: Voltronic Power (Axpert series), SRNE, Must Solar, MPP Solar.
Hardware Ports: Dual RJ45 ports (CAN/RS485) for seamless link between battery-to-inverter and battery-to-battery parallel connections.
Pin Assignments: Standard RJ45 pinout assignments (e.g., CAN_H, CAN_L, RS485_A, RS485_B) are clearly labeled on the front terminal faceplate to prevent miswiring.
Master-Slave Addressing: When stacking or rack-mounting multiple battery packs (up to 15–16 units in parallel), assign the master unit via the on-board DIP switches.
Centralized Reporting: The master battery aggregates real-time cell voltages, temperatures, and combined SOC from all slave packs, communicating all telemetry to the inverter through a single data cable.
If your project utilizes a specialized energy management system (EMS) or an unlisted inverter model, our engineering team can provide firmware updates or calibrate custom CAN/RS485 protocol mapping based on your inverter manufacturer’s protocol documentation. Contact our engineering desk at sunny@solarisia.com.
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