Why BACnet matters in building automation... Developed by ASHRAE and standardized in 1995, BACnet (Building Automation and Control Networks) has become the universal language of smart buildings. With 60–80% of control systems now supporting BACnet, its openness and flexibility are driving seamless integration across HVAC, lighting, access control, fire safety, and more. BACnet simplifies interoperability - allowing devices from different manufacturers to speak the same language and enabling powe

How does a BMS talk to a Controller? In HVAC systems, seamless communication between a Building Management System (BMS) and local controllers (like those for AHUs) is vital. Using industry-standard protocols like BACnet, BMS platforms send and receive real-time data, commands, and setpoints to manage temperature, air quality, and system status. But it’s not just about language — it’s about syntax, structure, and connectivity. From Ethernet/IP to RS-485, we break down how this communication actua