
BL121PO Series · 2 or 6 serial ports · Downlink: Siemens, Mitsubishi, Omron, Delta PLCs · Uplink: OPC UA
Choose BL121PO for small to medium PLC integration projects, or BL121POP for large‑scale industrial data collection. Both support optional WiFi and PLC remote debugging.
| Feature | BL121PO (Standard) | BL121POP (High‑Performance) |
|---|---|---|
| Serial Channels | 2 × RS485/RS232 | 6 × RS485/RS232 |
| Max. PLCs | 10 | 50 |
| Data Points | 512 | 4,000 |
| Downlink Protocols | Siemens · Mitsubishi · Omron · Delta PLCs | Siemens · Mitsubishi · Omron · Delta PLCs |
| Uplink Protocol | OPC UA | OPC UA |
| PLC Remote Debugging | ✓ Upload / Download | ✓ Upload / Download |
| 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 PLC Integration | Large‑Scale Industrial Data Collection |
Engineered for industrial automation integration with seamless PLC to OPC UA conversion and remote debugging capabilities.
Collects data from Siemens, Mitsubishi, Omron, and Delta PLCs — outputs to OPC UA for standardized industrial data access.
Supports remote debugging, upload, and download of PLC programs. Enable remote maintenance and troubleshooting without traveling to site.
OPC UA provides secure, platform‑independent, and standardized data access — seamless integration with SCADA, MES, and IIoT platforms.
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, control cabinets, and equipment enclosures.
Click a tab below for detailed module parameters. Both models share the same core platform.
Designed for system integrators, industrial automation engineers, and IT/OT convergence projects.
Bridge Siemens, Mitsubishi, Omron, and Delta PLCs to OPC UA SCADA and MES systems — enable real‑time production monitoring.
Connect PLCs from multiple brands to OPC UA‑based IIoT platforms — unlock data for predictive maintenance and digital twins.
Perform remote upload, download, and debugging of PLC programs — reduce travel costs and minimize production downtime.
Provide standardized OPC UA data access from factory floor PLCs to enterprise IT systems — enabling business‑level decision making.