Patent ID: 8452906

Claim:
An HVAC data processing and communication network, comprising: a first system device adapted to provide a first service and publish a message including a first device status vector representing an availability of said first system device to provide said first service; and a subnet controller adapted to receive said message from said first system device including said first device status vector via a data bus, wherein said subnet controller is further adapted to receive, via messages from a plurality of system devices including said first system device, a corresponding plurality of device status vectors that includes said first device status vector, wherein each device status vector includes a plurality of bits, each bit having within said device status vector a bit position that corresponds to one of a plurality of potential services provided by said system devices, said plurality of services including said first service, said subnet controller further adapted to perform a logical operation on a bit corresponding to said first service from each of said plurality of device status vectors to determine if said first service is available.