BA111 Series · Connect BACnet HVAC Devices to Modbus Control Systems
Choose BA111 for cost‑efficient small building zones, or BA111P for high‑density data acquisition across large facilities. Both support optional 4G, WiFi, and GPS modules.
| Feature | BA111 (Standard) | BA111P (High‑Performance) |
|---|---|---|
| Serial Channels | 2 × RS485/RS232 | 6 × RS485/RS232 |
| Max. Devices | 10 | 50 |
| Data Points | 512 | 4,000 |
| Downlink Protocols | BACnet/IP · BACnet MS/TP | BACnet/IP · BACnet MS/TP |
| Uplink Protocols | Modbus RTU · Modbus TCP | Modbus RTU · Modbus TCP |
| 4G (Optional) | ✓ L‑E / L‑A / L‑AU / L‑AF / CAT‑1 | ✓ L‑E / L‑A / L‑AU / L‑AF / CAT‑1 |
| WiFi (Optional) | ✓ 802.11a/b/g/n | ✓ 802.11a/b/g/n |
| GPS (Optional) | ✓ NMEA‑0183 | ✓ NMEA‑0183 |
| Dimensions (L×W×H) | 30 × 83 × 110 mm | 40 × 83 × 110 mm |
| Weight | 133 g | 171 g |
| Best Fit | Small Buildings / Zones | Large Facilities / Campuses |
Engineered for building-to-industrial automation integration with seamless BACnet-to-Modbus connectivity.
Native downlink BACnet/IP and BACnet MS/TP — uplink Modbus RTU and Modbus TCP. Enable BACnet HVAC devices to communicate with Modbus control systems.
Connect BACnet HVAC equipment — chillers, AHUs, thermostats — to Modbus PLCs and SCADA for unified building and industrial control.
4G, WiFi, or Ethernet with wired priority and automatic 4G failover — always online. Optional GPS for asset tracking.
9–36V DC wide input, reverse‑polarity protection, -40~85°C operation, EMC Level 3 (ESD/EFT/Surge), 2KV isolation.
Full remote configuration, firmware upgrades, and diagnostics — eliminate costly on‑site visits.
DIN35 rail or wall mounting with patented rail‑clip — quick installation in electrical panels and equipment rooms.
Click a tab below for detailed module parameters. Both models share the same core platform.
Trusted by building system integrators, facility managers, and industrial automation engineers.
Connect BACnet-based chillers, AHUs, and thermostats to industrial Modbus PLCs and SCADA — unify HVAC with production control.
Bridge BACnet building equipment to Modbus-based energy management systems for centralized energy monitoring and optimization.
Integrate BACnet lighting, access control, and environmental sensors into industrial Modbus networks for unified facility oversight.
Extend existing Modbus-based control platforms to include BACnet devices — modernize without replacing legacy infrastructure.
