The BACnet MS/TP FC Bus is a standard peer-to-peer, multiple-manager protocol in which each manager device takes turns originating messages to pass to any device on the bus.
The engines can communicate over the MS/TP FC Bus with the Metasys controllers, including FEC16, FEC25, and FEC26; FAC25, FAC26 and FAC36; VMA16; IOM17, IOM27, IOM37, and IOM47; CGMs; and CVMs.
Engines can also communicate over the FC Bus with third-party MS/TP devices that comply with the BACnet standard protocol based on American National Standards Institute/American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ANSI/ASHRAE) Standard 135-2004.