In the context of global energy transition, photovoltaic (PV) power generation, as a vital component of clean energy, is experiencing explosive growth. China, as the world's largest PV market, continues to see increasing numbers of distributed and centralized solar power plants. However, most on-site PV equipment such as inverters and meters commonly use the Modbus RTU/TCP protocol, while grid dispatching centers or enterprise-level SCADA systems require the standard IEC 60870-5-104 (IEC104) protocol for data exchange. This creates a significant protocol conversion challenge for PV power station monitoring system integration.
The BE102 Modbus to IEC104 Protocol Gateway launched by BLIIOT (Bliiot) is an industrial-grade solution specifically designed to address this issue. It efficiently collects Modbus data from inverters and converts it into the IEC104 protocol, uploading it to SCADA servers for seamless real-time monitoring and grid dispatching integration.
In traditional photovoltaic power plants, inverters (such as Huawei SUN2000, Sungrow, etc.) output critical data—including generated power, cumulative energy yield, voltage, current, temperature, and fault alarms—via RS485 or Ethernet ports using Modbus protocol.
Meanwhile, power industry SCADA systems and dispatching master stations are typically based on the IEC104 protocol, supporting standardized Information Object Addresses (IOA) for telemetry, teleindication, and telecontrol. This mismatch often requires extensive custom development or equipment replacement, resulting in high costs and prolonged project timelines.
BE102 acts as a perfect “translator” protocol conversion gateway:
With BE102, PV projects can achieve fast compliance with grid access standards without large-scale modifications to existing equipment, enabling centralized data management and intelligent operation and maintenance.
The BE102 is built on a 300MHz ARM processor running a Linux operating system, delivering powerful edge computing capabilities:
Available models include BE102 (basic), BE102L (with 4G/WiFi), BE102P (6 serial ports), BE102PLG (6 serial ports + 4G + GPS), etc., offering flexibility for different scales of PV projects.
In real-world deployments, BE102 offers highly flexible connection methods:
In the configuration software, users simply map key Modbus registers (such as total active power, daily energy yield, fault codes, etc.) to IEC104 Information Object Addresses (IOA) according to the inverter protocol manual and set the acquisition interval. BE102 supports data caching, preprocessing, and breakpoint resume, ensuring data integrity even during network fluctuations.
Suitable for:
In practice, BE102 has been widely applied in energy monitoring, distribution stations, smart buildings, and especially in PV scenarios, helping users achieve low-cost upgrades from “Modbus devices to IEC104” quickly.
With the advancement of China’s “Dual Carbon” goals, intelligent and standardized monitoring of photovoltaic power generation has become an inevitable trend. The BLIIOT BE102 Modbus to IEC104 Gateway, with its professional, reliable, and user-friendly features, has become an indispensable protocol conversion tool in PV energy monitoring systems.
It not only solves the problem of protocol mismatch but also provides solid technical support for the digital transformation of photovoltaic power plants.
If you are planning or implementing a PV monitoring project, we recommend considering the BE102 series first. Select the appropriate model based on the number of inverters, on-site network conditions, and SCADA requirements to efficiently complete data integration.
For more detailed wiring diagrams, configuration tutorials, or integration examples with specific inverter brands, feel free to provide more project details for tailored advice.
Photovoltaic monitoring starts with smooth protocol conversion — let your data flow seamlessly!
