BL121ML Series · 2 or 6 serial ports · Collects Modbus, BACnet, DL/T645, IEC104 · Outputs OPC UA to SCADA/IIoT/Enterprise
Choose BL121ML for small to medium multi‑protocol integration, or BL121MLP for large‑scale facility integration. Both support optional WiFi.
| Feature | BL121ML (Standard) | BL121MLP (High‑Performance) |
|---|---|---|
| Serial Channels | 2 × RS485/RS232 | 6 × RS485/RS232 |
| Max. Devices | 10 | 50 |
| Data Points | 512 | 4,000 |
| Downlink Protocols | Modbus RTU/TCP · BACnet/IP · BACnet MS/TP · DL/T645 · IEC104 | Modbus RTU/TCP · BACnet/IP · BACnet MS/TP · DL/T645 · IEC104 |
| Uplink Protocol | OPC UA | OPC UA |
| WiFi (Optional) | ✓ 802.11a/b/g/n | ✓ 802.11a/b/g/n |
| Dimensions (L×W×H) | 30 × 83 × 110 mm | 40 × 83 × 110 mm |
| Weight | 133 g | 171 g |
| Best Fit | Small / Medium Integration | Large‑Scale Facility Integration |
Engineered for universal building, power, and industrial integration with seamless multi‑protocol to OPC UA conversion.
Collects data from Modbus, BACnet, DL/T645, and IEC104 — outputs to OPC UA for standardized data access. One gateway for all.
OPC UA provides secure, platform‑independent, and standardized data access — seamless integration with SCADA, IIoT, and enterprise systems.
Replace multiple proprietary gateways with a single unified OPC UA gateway — reduce hardware costs, cabling complexity, and maintenance overhead.
Optional WiFi for flexible network deployment — ideal for locations where wired Ethernet is unavailable or impractical.
9–36V DC wide input, reverse‑polarity protection, -40~85°C operation, EMC Level 3 (ESD/EFT/Surge), 2KV isolation.
DIN35 rail or wall mounting with patented rail‑clip — quick installation in electrical panels, mechanical rooms, and equipment enclosures.
Click a tab below for detailed module parameters. Both models share the same core platform.
Designed for system integrators, facility managers, and utility operators.
Bridge BACnet building devices, Modbus equipment, and DL/T645 power meters to OPC UA SCADA for unified monitoring.
Connect IEC104 RTUs and DL/T645 meters to OPC UA for integration with energy management and enterprise systems.
Unify Modbus, BACnet, and power protocols from industrial plants, buildings, and utilities into a single OPC UA platform.
Connect multi‑protocol devices to OPC UA‑based IIoT platforms — unlock data for predictive maintenance and digital twin applications.
