A Building Management System is a computer-based system installed in buildings to manage and monitor all the facilities equipment such as:

• HVAC Chilled Water System operations & monitoring.
• Air handling units operations & monitoring.
• Diesel Generators operations & monitoring.
• Electrical Power Monitoring System.
• Indoor Air Quality monitoring.
• Outdoor Air Quality monitoring.
• Water Quality monitoring.
• Fire Pumps & Sprinkler System operations & monitoring.
• Hot Water System and Central Heating.
• Elevators operations & monitoring.
• CCTV monitoring.

A BMS system consists of servers, supervisory devices, field buses, controllers, inputs, and outputs. A BMS connects the different building equipment to work as one integrated unit. Ideally, it centralizes operations and makes data easier to visualize using a user interface or console.