CBB 3F QUEEN

Use cases

• Monitor real-time PV production from both MPP trackers on a cloud dashboard for your customer.
• Track battery state of charge remotely to verify self-consumption optimization throughout the day.
• Create an alert when battery SoC drops below a critical threshold or a fault status is reported.
• Adjust the battery grid minimum SoC setpoint remotely to adapt to seasonal consumption patterns.
• Log three-phase grid power and backup load data over time for energy audits and reporting.
• Compare per-phase grid voltages to detect imbalance or supply issues at the installation site.

Installation

1. 1Wire the RS-485 (A/B) connection from the ModbusCloud gateway (MCG or MLP series) to the Modbus RTU port on the OIG CBB 3F QUEEN.
2. 2Set the gateway serial port to 9600 baud, odd parity (1 stop bit), matching the default communication settings of the CBB 3F QUEEN.
3. 3Confirm or assign the Modbus slave address on the CBB 3F QUEEN and configure the same address in the ModbusCloud gateway.
4. 4Import the OIG CBB 3F QUEEN template from the ModbusCloud template library into your project.
5. 5Verify that PV power, battery SoC, and grid voltage readings appear correctly on the ModbusCloud dashboard before closing the installation.

Things to watch for

Registers (19)

19 read / 1 write

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