DATA TRANSMISSION ARRANGEMENT COMPRISING A TREE-STRUCTURED DATA NETWORK

摘要

In a transmission network having a tree structure in which data is forwarded from the tree branches toward the trunk at periodic intervals, the data which is transmitted between the several network levels is transmitted in data blocks each having a status field and a data field, the status field identifying the status of stations at a lower level in the network. The information in the status field is reduced by deleting data corresponding to a predetermined status information content corresponding to the most probable configuration of such data. The remaining status data is divided into sub-sets and transmitted with an individual sub-address for each sub-set, and a control signal identifying the number of sub-sets which are transmitted, and an address identifying the sending station.