Patent ID: 8306051
Filing Date: 2012-11-06
Classification: H04L,H05B

Abstract:
1. A method of polling a plurality of control devices by a master device selected from said plurality of control devices, each of the plurality of control devices coupled to a communication link and including a unique Poll ID, the method comprising the steps of: the master device sequentially transmitting a standard poll message to each control device marked active in a list of Poll IDs during a normal mode of operation; each of the control devices responding to the standard poll message when the Poll ID of the device matches the Poll ID of the standard poll message; the master device periodically transmitting a Poll-ID-Request poll message to the plurality of control devices between two consecutive standard poll messages during the normal mode of operation; and each of the control devices responding to the Poll-ID-Request poll message if the Poll ID of the control device does not have a Poll ID.