Apparatus for feeding a bus

Abstract

A bus subscriber node ( ) having a feed module ( ) and means ( ) for transmitting and/or receiving information by way of the bus ( ) has a switch module ( ) which is actuatable by way of a switching logical member ( ) and by which the feed module ( ) can be connected to the bus ( ) or by which the feed module ( ) can be separated from the bus ( ). The bus subscriber node ( ) also has a memory cell ( ) and a monitoring member ( ) for detecting a current supplied by the feed module ( ). The switching logical member ( ) is coupled to the memory cell ( ) and the monitoring member ( ) in such a way that the feed module ( ) can be separated from the bus ( ) on the basis of an item of information stored in the memory cell ( ) or on the basis of a certain current level detected by the monitoring member ( ). With the memory cell ( ) the bus subscriber node ( ) can be configured as a feeding or as a non-feeding bus subscriber node and can be used in communication networks with central and decentral feed.