BL191 OPC UA Edge I/O Module was deployed to act as a data bridge between PV inverters, smart energy meters, and the central SCADA system.
Case Details
With the rise of distributed photovoltaic (PV) systems and the increasing complexity of energy consumption patterns, a modern energy management system was needed to optimize energy distribution, improve operational efficiency, and reduce electricity costs in a large-scale industrial park.
The BL191 OPC UA Edge I/O Module was deployed to act as a data bridge between PV inverters, smart energy meters, and the central SCADA system. The system architecture includes:
- Data Acquisition: The BL191 collects real-time data such as voltage, current, power generation, and consumption from multiple PV inverters and electric meters via Modbus RTU through its RS485 interface.
- Protocol Conversion: The acquired data is securely converted and transmitted using the OPC UA protocol to the upper-level SCADA system for unified monitoring and management.
- Secure & Reliable Communication: The BL191 supports X.509 certificates and AES-256 encryption, ensuring secure communication in compliance with IEC 62443 standards.
- Remote Maintenance: With built-in support for BLRAT (Beilai Remote Access Tool), engineers can remotely configure, update firmware, and troubleshoot the module without on-site visits.
Application Highlights
- Location: Industrial park with distributed PV and multiple energy metering points
- Devices Connected: >30 PV inverters and >50 smart meters
- Communication Protocols: Modbus RTU (device side) → OPC UA (SCADA side)
- Platform: BL191 OPC UA Edge I/O Module
