To achieve precise control and energy savings, a large commercial complex implemented the BA190 BACnet/IP Edge I/O Module, integrating seamlessly with the Building Automation System.
Case Details
In modern commercial buildings, HVAC (Heating, Ventilation, and Air Conditioning) systems account for over 40% of total energy consumption. To achieve precise control and energy savings, a large commercial complex implemented the BLIIOT BA190 BACnet/IP Edge I/O Module, integrating seamlessly with the Building Automation System (BAS) via the BACnet/IP protocol. This solution enables zone-based temperature control and energy consumption analysis for the central air conditioning system.
System Architecture
- BA190 module collects real-time data (temperature, fan speed, valve position) from HVAC equipment (air handling units, fan coils, sensors, and actuators) via its isolated RS485 port (Modbus RTU master mode).
- Digital Input (DI) monitors equipment status (e.g., fault alarms), while Analog Output (AO) adjusts inverter frequency or valve openings.
- BA190's dual Ethernet ports support BACnet/IP, connecting directly to the building's LAN and communicating with BMS platforms.
- Built-in hardware watchdog and electrical isolation ensure stable operation in harsh industrial environments.
The central management platform processes BACnet/IP data from BA190 to: Implement zoned temperature control: Adjusts airflow based on real-time occupancy and thermal demands in different areas (e.g., offices, retail spaces).
Analyze energy consumption: Tracks runtime and peak loads, optimizing HVAC schedules to reduce waste.
Key Functionality
The BA190's 16-bit AI module (Y31/Y33) measures temperature/humidity, triggering automated responses:
- If a conference room exceeds setpoints, the relay output (Y24 module) activates auxiliary fans.
- During non-business hours, DO signals shut off HVAC terminals in unoccupied zones.
- Energy Efficiency Optimization
- The module converts equipment power data (4–20mA signals) into BACnet Analog Input objects for cloud analysis.
- AI algorithms identify high-consumption periods and switch to low-energy modes (e.g., reducing nighttime ventilation).
- Remote Maintenance & Scalability
- Engineers configure PID settings via the built-in web server, eliminating on-site visits.
- I/O expansion slots allow adding modules (e.g., Y51 for PT100 sensors) to monitor chilled water pipes.
BLIIOT BA190 module combines multi-protocol support, rugged design, and flexible I/O expansion to modernize commercial HVAC systems. Its BACnet/IP compatibility simplifies integration while providing actionable data for sustainable building management—aligning with global carbon-neutral goals.
Learn more at https://bliiot.com/products/bacnet-ip-edge-io-ba190
