Building management system with automatic equipment discovery and equipment model distribution

A building management system comprising:

• a zone bus;
• a system bus;
• and
• a plurality of devices coupled to the zone bus or the system bus and configured to communicate on the system bus or the zone bus using a protocol, a first device of the plurality of devices having a memory comprising data representing each of the plurality of devices that exchange information among the plurality of devices using the protocol;
• wherein the first device is configured to monitor the data and to identify a new device communicating on the zone bus or the system bus in response to a determination that the data indicates that the new device is communicating on the system bus or the zone bus, wherein the first device generates a list of devices communicating on the system bus and a list of devices communicating on the zone bus and provides a device tree identifying at least the devices communicating on the system bus or the devices communicating on the zone bus.