What Are the Levels of Building Automation?

The Founder's Explanation (Teach Exactly This Way)

"A company again — workers, supervisors, management. Data goes up: worker reports to supervisor, supervisor to management. Orders come down. Ask where a device sits and you are really asking, is this a worker, a supervisor, or management? Once you know the level, you also know who is responsible for it."

Teaching the Concept

The Company Hierarchy In a company, data flows up — worker to supervisor to management — and orders flow down. Everyone knows their level and who owns what. Building automation stacks in the very same three levels, and a device's level tells you who is responsible for it. The levels are a map of responsibility as much as of hardware. The Three Levels ``` MANAGEMENT LEVEL servers, front-end, integration, IT AUTOMATION LEVEL DDC controllers, logic, schedules FIELD LEVEL sensors, actuators, field devices data flows UP; commands flow DOWN ``` Placing a Device ``` A sensor -> field level (controls contractor) A DDC -> automation level (controls contractor) A server / BMS -> management level (often shared with IT) ``` Know the level, and you know who owns the device — clear levels make clear integration boundaries.

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Related Topics

• What is a Building Automation System (BAS)? — the automation layer that runs the plant
• How to design a BMS system step by step — the full BMS design methodology
• Browse all Fundamentals topics — more from this section of the EnSmart BMS Library