Huawei Smart Logger 3000A 03 with MBUS

Huawei SmartLogger3000A 03 – Industrial data logger with MBUS communication

The Huawei SmartLogger3000A 03 (SmartLogger3000A03EU) is one of the leading solutions in the industrial-grade solar monitoring market, capable of managing up to 80 devices simultaneously. Unlike the 01 version, the A03 also features an MBUS communication module, enabling PLC-based data transmission—ideal for installations where Huawei invertersand MBUS-compatible meters need to be integrated into a common network.

MBUS – what’s the difference compared to version 01?

The MBUS (Meter Bus) interface allows the SmartLogger to connect directly to meters and other MBUS devices via PLC-based communication—without the need for separate physical cables, using existing AC power lines. The A03 is therefore ideal for commercial and industrial projects where building a physical communication infrastructure would be difficult or costly.

80 devices – one control point

The SmartLogger3000A03EU features WAN, LAN, 3×RS485, and MBUS interfaces and can monitor up to 80 connected devices simultaneously. It communicates with inverters and meters via built-in Modbus-TCP and Modbus-RTU protocol support. The optional 2G/3G/4G module provides mobile data transmission where wired internet is unavailable. It is compatible with Huawei energy storage systemsand the FusionSolar platform.

Zero-export and smart control

The SmartLogger3000A features an intelligent zero-export function that prevents energy from being fed back into the grid. Its DI×4, DO×2, and AI×4 ports allow for the integration of relays, sensors, and other control elements. Its built-in surge protection module protects both the device and connected equipment.

Installation and Physical Parameters

The SmartLogger3000A03EU has an IP20 protection rating and can be mounted on a wall, DIN rail, or desktop. Its dimensions are 225×160×44 mm, and it weighs 2 kg. Power supply: 100–240V AC or 12/24V DC. Operating temperature: –40°C to +60°C. Three LEDs indicate system status (RUN, ALM, 4G). Among communication accessories, it is one of the most versatile industrial monitoring devices.

SOLARKIT reviews

The Huawei SmartLogger3000A 03 is the MBUS version—this is the key difference compared to the 01 model. We recommend it for those operating larger commercial projects where the integration of MBUS-compatible meters alongside multiple Huawei invertersis required, and who are looking for centralized, professional monitoring.