A defining decision each facilities professional must make is how to configure their building management system (BMS), which systems to tie together, and whether to develop a proprietary system or purchase a vendor “plug and play” system. There’s no uniform “right” decision. Sub-systems to include in a BMS, based on operational requirements, cost, and ease of use, must be considered in determining a facility’s optimal configuration.
Perhaps most important is deciding the level of interdependency a facility can tolerate—whether to tie all major building components into one master BMS or to keep some systems discrete in their operations. Designing redundancy to keep operations going during a BMS failure is critical, and its configuration will depend upon the initial decision on which components are independently or master monitored.