Device and method for monitoring an integrity of a series-connection of a plurality of switches

摘要

A device for monitoring a space by changing a sequence of a serial interconnection of closing contacts, in particular of cover switches in a security housing, having a series circuit variation apparatus, a security cover, at least two closing contacts, and a protective circuit, wherein said at least two closing contacts each have an open, electrically nonconductive state and a closed, electrically conductive state, wherein said security cover is set up to put each of said at least two closing contacts in a closed, electrically conductive state, wherein said protective circuit is set up to detect an opening of at least one of said at least two closing contacts, wherein said series circuit variation apparatus serially interconnects said at least two closing contacts, wherein the sequence of the serial interconnection of said at least two closing contacts can be changed by said series circuit variation apparatus.

主权项

1. A monitoring device for monitoring integrity of a series-connection of a plurality of switches, the monitoring device comprising:
a protective circuit adapted to detect a switching status of at least one of a plurality of series connected switches for monitoring the integrity of the series-connection of the plurality of switches; and a series-connection variation device, the series-connection device including:
at least one multiplexer/demultiplexer element adapted to vary the sequence of the series connection of the plurality of switches; anda microprocessor adapted to control the at least one multiplexer/demultiplexer element.