Question
Smart pumps such as the Grundfos MAGNA3 and the Wilo Stratos MAXO natively support Modbus RTU/TCP, exposing around 50 parameters (power, flow, temperature, status, alarms) and accepting commands (speed, mode), which enables BMS integration without a separate external drive.
ModbusLearnUse casesMedium
Answer
True
Several pump ranges embed Modbus directly: Grundfos MAGNA3 / SCALA2 (Modbus integrated), Wilo Stratos MAXO (Modbus and BACnet), KSB MyFlow / Ecoflow (Modbus). Typical exposed measurements are instantaneous power (W), flow (m^3/h), pump head (mCE), fluid temperature, operating hours and start counters, and alarm codes. The control side typically offers mode selection (Auto, Constant Pressure, etc.) and a setpoint. This avoids fitting an external VFD for pumps up to 7.5 kW.
Preparation tip
When sizing the BMS integration, remember that these pumps poll slowly internally; a 5-10 s scan interval is plenty and a 1 s cycle just wastes bus time.
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