What Is a Points Schedule in BMS?
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The complete list of every input and output for every piece of equipment in the BMS project.
For every equipment:
What do we READ from it? (Inputs)
Temperature, pressure, humidity, status, fault — AI or DI
What do we COMMAND to it? (Outputs)
Start, stop, open, close, speed, position — DO or AO
AHU-01 example:
AI: Supply air temperature, Return air temperature, Humidity, CO2, Filter DP
DI: Fan run status, Fan fault, Fire alarm signal
AO: CHW valve position (0–100%), Heating valve (0–100%), Fresh air damper (0–100%)
DO: Fan start/stop, Return fan start/stop
Total: ~12 points per AHUMultiply across all equipment in the building → total BMS point count.
Total points determine number of controllers → total system cost.
Related Topics
- What is BMS integration? — how a BMS connects with VFDs, energy meters, BACnet/Modbus devices and other building systems
- How to design a BMS system step by step — the complete BMS design methodology covering site survey, IO list, controller selection, sequence of operations
- What is a Building Management System (BMS)? — fundamentals of BMS controls and architecture for HVAC, lighting, energy and access
- What is BMS commissioning? — the disciplined commissioning process that turns a BMS install into a working building brain
- Browse all BMS Systems Design topics — more from this section of the EnSmart BMS Library
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