A method for determining the physical locations of devices located on a series connected network. A mapper routine located on the network severs a device from the network and then requests each device to respond with its respective node address to the mapper. Upon receiving the responses, the severed...http://www.google.ca/patents/US5754767?utm_source=gb-gplus-sharePatent US5754767 - Method for automatically determining the physical location of devices on a bus networked control system 
