The BACnet® standard is extending its scope to incorporate physical access control systems (PACS) and, soon, closed-circuit television (CCTV) control and an interface to logical access control. This extension into the realm of physical security takes BACnet beyond its original scope of HVAC control. With the recent additions of fire detection, energy consumption management and the upcoming lighting control, BACnet has emerged as one of the worldwide building automation and control standards.