...
PLC BACnet/IP communication is via a gateway and mainly facilitates control of the Primary Chillers in the Utility Building and PLC5.
The Alerton HVAC control system uses BACnet/IP and RSTP internally.
Ignition uses BACnet/IP to communicate with the primary chillers (read-only), AHU’s 02/03//04 (read-only), Alterton HVAC system, and the nLight Lighting system.
*NOTE: The Ignition BACnet driver will occasionally fail to communicate with some devices after a power outage. The quick fix is to log into the Ignition server browser interface. Go to the Config section, the BACNET where you’ll find local devices. Select edit next to the local device called FMSHMI. Without changing any settings, select save. Typically this is enough to trigger it to reestablish communications. Otherwise, restart the server.
PLC
The BACnet gateway is a ProSoft unit set up via CSV file.
...