ABSTRACT
A Building Management System (BMS) is a computer based control system installed in buildings that controls and monitors the building's mechanical and electrical equipment in the most efficient way. The benefits of BMS includes switching plant on and off automatically according to time, time of day and environmental conditions (e.g. senses conditions and activates devices to correct settings); optimizing plant operation and services; and monitoring plant status and environmental conditions and thus improves standards of operation and maintenance. It also includes allowing remote access, control and monitoring (e.g. using graphical information and alarms). BMS components include hardware and software/programming. The Primary network/BMS backbone includes Head end equipment (desktop computer, laptop, monitors, keyboard, dot matrix and colour printer, UPS supply, etc.), Ethernet network cabling (normally Cat 5e or Cat 6 cables) and Ethernet switch (located inside the control panels). The Secondary network includes control enclosure (CE) or control panel (CP) or BMS outstation and motor control centre (MCC).
