BACnet at Cornell

At the time of this article, we have nearly 2,000 BACnet devices on the Cornell campus, ranging from small application-specific devices to full-scale building controllers. BACnet has allowed us to integrate disparate systems as never before. While most of the BACnet devices are dedicated to HVAC applications, we also have several lighting control and switchgear monitoring systems. In all, we have BACnet equipment from six different suppliers, all happily interoperating. Now, thanks to BACnet, we can quit worrying about getting devices to talk to each other and can get on with the real work: running our campus mechanical equipment as smartly and efficiently as possible.