A wired drill pipe telemetry system includes a surface computer; and a drill string telemetry link comprising a plurality of wired drill pipes each having a telemetry section, at least one of the plurality of wired drill pipes having a diagnostic module electrically coupling the telemetry section and...http://www.google.de/patents/US7096961?utm_source=gb-gplus-sharePatent US7096961 - Method and apparatus for performing diagnostics in a wellbore operation
