Building Management System (BMS)
Centralized Control and Automation Platform for Building Systems
The Building Management System (BMS) is a centralized automation and control platform designed to monitor, control, and optimize critical building services including HVAC, lighting, power distribution, and utility systems.
The system integrates field devices, controllers, and supervisory software through open communication protocols, enabling real-time data acquisition, execution of control logic, trend analysis, and comprehensive alarm management.
BMS supports energy-efficient operation, maintains optimal Indoor Environmental Quality (IEQ), and ensures reliable system performance through continuous monitoring and advanced control strategies.
System Architecture
- Field Level: Sensors, actuators, VFDs, and control valves installed at equipment and zone levels
- Automation Level: DDC controllers and Network Area Controllers (NACs) executing control sequences and interlocks
- Management Level: Central BMS server and operator workstations providing visualization, analytics, and reporting
Core Components
DDC Controllers & Network Area Engines
- Programmable Direct Digital Controllers (DDCs) for AHUs, FCUs, chillers, boilers, pumps, and terminal units
- Network Area Engines for supervisory control, data aggregation, scheduling, trending, and alarm management
- Support for open protocols such as BACnet/IP, BACnet MS/TP, Modbus TCP/RTU
Sensors
- Temperature sensors (room, duct, immersion, outdoor air)
- Pressure sensors (differential, static)
- Relative humidity sensors
- CO₂ sensors for demand-controlled ventilation
- Flow and energy meters (optional integration)
Actuators & Variable Frequency Drives (VFDs)
- Motorized control valves and damper actuators with position feedback
- Variable Frequency Drives (VFDs) for pumps and fans to enable speed control and energy optimization
- Integration of VFD parameters such as speed, current, faults, and run status into the BMS
Functional Capabilities
- Closed-loop PID control
- Time-based scheduling and occupancy control
- Alarm generation, prioritization, and notification
- Trend logging and system performance analysis
- Energy monitoring and optimization strategies
- Fault Detection and Diagnostics (FDD) readiness