Abstract
SCADA systems and Building Management Systems (BMS) are control layers; they report raw data. Engineering analytics is the calculation layer; it interprets data using thermodynamics to dictate operational strategy.
The Limitation of Telemetry
A standard BMS polls thousands of data points via Modbus or BACnet and displays them on graphical interfaces. This answers 'what is happening' (e.g., supply is 8°C). It lacks the computational capability to answer 'what should be happening' based on current environmental variables and isentropic limits.
Digital Twins and Physics Modeling
Engineering analytics constructs a thermodynamic digital twin. By solving fundamental mass and energy balance equations in real-time, the platform calculates the theoretical minimum energy required for the current load. The variance exposes hidden operational waste and quantifies it in kW and currency.
E_in = E_out + ΔE_system