Building HVAC EdgeIO Controller BA190Pro
  • bacnet IO module
  • iiot solution
  • hvac
  • edge computing
  • mqtt i/o
  • opc ua i/o
  • bacnet IO module
  • iiot solution
  • hvac
  • edge computing
  • mqtt i/o
  • opc ua i/o

Building HVAC EdgeIO Controller BA190Pro

No.BA190Pro
Four‑protocol building automation controller: BACnet/IP for BMS, MQTT for cloud, OPC UA for IT, and Modbus TCP for legacy. Converts Modbus RTU/TCP data to all four protocols simultaneously. Expandable with 1-3 Y Series I/O boards. Local logic for standalone operation. Dual Ethernet with switch. -40°C to +85°C.
  • Description

  • Model Selection

⚡ Multi‑Protocol EdgeIO Controller for Smart Buildings & HVAC

BA190Pro EdgeIO Controller

One device natively supports BACnet/IP, Modbus TCP, OPC UA, and MQTT. Replace “dedicated DDC + multi‑protocol gateway + cloud gateway” with a single controller for building automation, cloud integration, and IT/OT convergence.
✔ BACnet/IP · Modbus TCP · OPC UA · MQTT ✔ -40°C ~ +85°C wide temperature ✔ 1–3 I/O expansion slots (Y‑series)
Product Overview

Unified Edge Controller for BAS, Cloud, and IT Systems

The BA190Pro is a multi‑protocol EdgeIO controller from BLIIOT, designed for smart buildings and HVAC systems. Building on the BACnet/IP foundation of BA190, it natively integrates Modbus TCP, OPC UA, and MQTT as uplink protocols – delivering a single solution for building automation, cloud platform monitoring, and OT/IT data fusion.

Supporting 1–3 Y‑series expansion slots, it freely combines digital, analog, temperature, serial, and pulse modules to cover HVAC, lighting, security, plumbing, and more. One BA190Pro:

  • Collects field meters (power, water, heat) via Modbus RTU
  • Integrates with BAS (e.g., Honeywell, Siemens) via BACnet/IP
  • Uploads data to cloud platforms (Alibaba Cloud, AWS IoT, etc.) via MQTT
  • Exposes data to MES, ERP, energy management via OPC UA

Electrical isolation, EMC/EMI tested, -45°C~80°C validated, hardware watchdog, and compliance with BACnet, Modbus, OPC UA, MQTT – a highly reliable, easy‑to‑deploy, scalable edge solution for smart buildings.

🏢
Model: BA190Pro
Multi‑Protocol EdgeIO Controller

✔ 4 native uplink protocols
✔ 1–3 expansion slots
✔ Isolated RS485 + dual Ethernet

Why BA190Pro – Multi‑Protocol Fusion?

Building HVAC systems often face a complex mix of protocols: BAS requires BACnet/IP, energy meters speak Modbus RTU, central monitoring needs MQTT to cloud, and IT analytics expects OPC UA. Traditional solutions deploy multiple gateways – high cost, many failure points.

Traditional Pain Points BA190Pro Solution
Separate gateways for BACnet, Modbus, MQTT, OPC UA Single device natively supports all four protocols
Data forwarded across gateways – latency, low reliability Field data converted directly to any protocol, real‑time sync
Cloud cannot directly retrieve building data – custom development needed MQTT straight to cloud, collect & upload instantly
IT department cannot access OT data OPC UA provides standardized, secure interface to upper‑level applications
🔄 Data from Modbus RTU can be simultaneously mapped to BACnet objects, OPC UA nodes, and MQTT messages – one source, every destination.

Key Features

  • 📡 4 Uplink ProtocolsBACnet/IP (BAS), Modbus TCP (PLC/SCADA), OPC UA (IT/OT), MQTT (cloud), plus Modbus RTU master/slave
  • 📟 Modbus RTU Master1x isolated RS485, up to 25 commands – reads power meters, water meters, heat meters, etc.
  • 🔧 Flexible I/O Expansion1–3 slots, 20+ Y‑series modules: DI, DO, AI, AO, RTD, TC, pulse, etc.
  • 🔗 Dual Ethernet Daisy Chain2× 10/100M Ethernet with switch function, simplifies cabling
  • 🌐 Built‑in Web ConfigurationBrowser‑based logic, PID loops, schedules, setpoints – no proprietary software
  • 📡 Remote O&M (BLRAT)Remote firmware upgrade, parameter tuning, diagnostics – no site visit
  • 🎛️ Local Logic ControlEnergy‑saving strategies, time‑scheduled control, PID regulation – offloads BAS
  • 🔒 High ReliabilityHardware watchdog, electrical isolation, -45°C~80°C validation, CE/FCC certified

Technical Specifications – Base Controller

Power Supply
24V DC, 55mA@24VDC, reverse polarity protection
Ethernet
2× RJ45, 10/100M, isolated: ESD ±6kV/±8kV, EFT 1kV
RS485
1x isolated, baud rate 2400~230400 bps (Modbus RTU master)
OS & Resources
Linux, 300MHz CPU, 64MB RAM, 128MB Flash
Uplink Protocols
BACnet/IP (BIBBs: DS-RP, DS-WP, DM-DDB, DM-DOB)
Modbus TCP (up to 15 client connections)
OPC UA Server (anonymous/username+password, X.509 optional)
MQTT Client (Alibaba Cloud, AWS IoT, ThingsBoard, private brokers)
Modbus RTU (master/slave, PLC/HMI)
OPC UA Details
Custom namespace, node ID mapping to Modbus addresses; security modes: Sign, Sign&Encrypt
MQTT Details
Pub/Sub, QoS 0/1/2, TLS encryption, offline buffering & data packing
Operating Environment
-40°C ~ +85°C, 5%~95% RH
Mounting / Protection
Wall mount / DIN35 rail, IP30
Dimensions (1-slot/3-slot)
30×83×110 mm / 40×83×110 mm

Use Case: Commercial Complex – HVAC Cloud‑Edge Collaboration

Background: A 120,000 m² commercial complex with 30 AHUs, 50 FCUs, 8 chillers, 15 power meters, and 6 heat meters. The original system used multiple standalone DDC controllers and a Honeywell BAS, but faced problems:

  • Field meters (power, heat) used Modbus RTU – could not directly connect to BACnet network without extra gateways.
  • Headquarters required energy data upload to Alibaba Cloud IoT – existing system had no MQTT support.
  • Operators had to manually read meters and adjust setpoints weekly – heavy workload.

✅ Retrofit with BA190Pro

One BA190Pro per equipment zone (e.g., 4 AHUs + 2 power meters + 1 heat meter).

  • Modbus RTU acquisition: Isolated RS485 reads voltage, current, active power, energy from power meters; instantaneous flow, accumulated heat from heat meters.
  • I/O local control: AI captures return/supply air temperature, CO₂; AO controls water valve (0‑10V) and VFD frequency; DO controls fan start/stop, alarm lights.
  • BACnet/IP to BAS: All I/O points and Modbus data mapped to BACnet objects (AI, AO, DI, DO, AV) for Honeywell BAS monitoring.
  • MQTT to cloud: Energy data and key operational parameters (AHU run hours, start/stop counts) uploaded to Alibaba Cloud IoT. Real‑time energy ranking and alarms on HQ dashboard.
  • OPC UA for IT integration: Data exposed via OPC UA to third‑party energy management software for deep analytics.
  • Remote O&M: Engineers use BLRAT to remotely adjust setpoints, PID parameters, schedules, and even upgrade firmware.

📉 Before Retrofit

  • ▪ Hardware: DDC + protocol gateway + 4G DTU (multiple boxes)
  • ▪ Modbus meter integration: separate gateway, high cost
  • ▪ Cloud support: none
  • ▪ System openness: BACnet only, closed
  • ▪ On‑site maintenance: ≥1 visit per week

📈 After Retrofit

  • ▪ Single BA190Pro
  • ▪ Direct Modbus integration, zero extra cost
  • ▪ MQTT direct to Alibaba Cloud, real‑time sync
  • ▪ BACnet + OPC UA + MQTT fully open
  • ▪ Remote maintenance, no weekly visits

Conclusion: One BA190Pro simultaneously satisfies BAS integration, cloud monitoring, data openness, and remote maintenance. Hardware cost reduced by >50%, O&M efficiency improved by 80%.

More Multi‑Protocol Applications

🏥 Hospital Cleanroom HVAC
Constant temp/humidity, positive pressure, energy reporting – Modbus RTU to power meter → MQTT to energy platform; BACnet to hospital BAS.
📊 Data Center
Cold/hot aisle monitoring, precision A/C, PUE calculation – OPC UA to DCIM; MQTT to HQ operation center.
🚇 Subway Environmental Control
Tunnel ventilation, station A/C, smoke exhaust – BACnet to metro BAS; OPC UA to simulation system.
🌿 Multi‑Building Campus
Energy metering, chiller plant group control – MQTT aggregation to campus brain; Modbus TCP to EMS.
🏨 Hotel / Apartment
FCU networking, public lighting, energy collection – local logic + cloud setpoints, reducing energy and operational cost.

Environment & Certifications

🌡️ Wide operating temperature
-40°C ~ +85°C
🛡️ Protection rating
IP30
📜 EMC compliance
CE/FCC certified, IEC61000-4-2/4/5 Level 3 (ESD, EFT, Surge)
📳 Vibration & drop
IEC60068-2-6 (sinusoidal vibration), IEC60068-2-31 (free fall)

✅ Hardware watchdog & full electrical isolation
✅ -45°C~80°C validation, anti‑interference design
✅ Dual Ethernet switch + isolated RS485
✅ Built‑in web configuration & remote O&M (BLRAT)

BACnet/IP · Modbus TCP · OPC UA · MQTT · Modbus RTU | -40°C to +85°C | CE/FCC Certified | B‑TL ready

Y‑Series I/O Selector

Compatible with BL192Pro, BL192, BL191, BL190, BL193, BA190, BA190Pro — 3 expansion slots.
🖱️ Click same module multiple times = select multiple slots (e.g., 3× Y31).

Available I/O Modules
💡 Click behavior: Each click adds that module to the next available slot.
🔁 Duplicate allowed: Click same module 2 or 3 times to fill multiple slots (e.g. Y31 + Y31).
⚠️ Y61 (Serial) can be selected only once per controller.
Your Selection (Slots 1–3)
    Total modules: 0 / 3
    Configuration summary
    No modules selected. Click any Y‑series module to occupy Slot 1 → Slot 2 → Slot 3.
    ✅ Fully compatible with BL192Pro, BL192, BL191, BL190, BL193, BA190, BA190Pro.
    📌 Each slot = physical I/O board position. Identical models allowed (click again).
    Y‑Series modules for BLIIOT Edge I/O Controllers. Up to 3 slots. Contact BLIIOT for custom configurations and volume orders.
    • bacnet IO module
    • iiot solution
    • hvac
    • edge computing
    • mqtt i/o
    • opc ua i/o

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