1. A method of manufacturing an HVAC data processing and communication network, comprising: configuring a first system device to send and receive messages over a data bus; configuring a second system device to send configuration data associated with a configuration of said second system device to said first system device; configuring said first system device to receive and persistently store said configuration data, wherein said stored configuration data is historical configuration data of said second system device; configuring a controller of said HVAC data processing communication network to determine if current configuration data of said second system device is flawed based on a comparison to said historical configuration data by comparing said historical configuration data to said current configuration data; and configuring said controller to initiate a routine for correcting said current configuration data when determining said current configuration data is flawed.