How can factories achieve Industrial IoT without replacing existing PLC systems?
Many industrial facilities still rely on mature PLC systems that control critical production processes. However, connecting these legacy systems to modern platforms such as SCADA, MES, and cloud applications remains a challenge.
The BL121PO PLC to OPC UA IIoT Gateway provides a simple and reliable solution to bridge the gap between traditional automation and Industrial IoT.
With support for major PLC brands including Siemens, Mitsubishi, Omron, and Delta, BL121PO enables seamless data collection from existing equipment and delivers industrial data through modern communication protocols such as OPC UA and Modbus TCP.
Designed for industrial applications, BL121PO integrates:
🔹 Dual RS485/RS232 communication channels for flexible device connectivity
🔹 Dual Ethernet ports (WAN/LAN) for network expansion and cascading applications
🔹 Remote configuration and firmware upgrades for efficient maintenance
🔹 Modbus RTU to Modbus TCP conversion for easy system integration
🔹 OpenVPN support and watchdog protection for secure and reliable operation
Instead of replacing existing PLCs, manufacturers can quickly upgrade their equipment with IIoT capabilities, enabling smarter monitoring, easier maintenance, and better data visibility.
BL121PO — Making legacy automation ready for the Industrial IoT era.
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