Patent ID: 8451100

Claim:
Use of a transponder ( 2 ) during a disconnection process which is performed in the course of maintenance, serving and/or repair work on a component and/or a commercial installation, wherein the disconnection process comprises the steps of creating a disconnection plan, of performing the disconnection and of reconnection or normalization, and wherein the transponder ( 2 ) has a reception element ( 7 ), a transmission element ( 8 ), a visual display unit ( 6 ) and a memory unit ( 10 ) for storing at least one state/operational information unit and also a control element ( 9 ) which is operatively connected to these, in a commercial installation in an arrangement or positioning on or in proximity to the component or at a switching or measuring point associated with said component for the purpose of visually displaying an operating state for the component or the switching or measuring point associated therewith using the visual display unit ( 6 ) of the transponder ( 2 ), wherein the visual display unit ( 6 ) visually displays the number of stored state/operational information units and a warning signal is shown on the visual display unit ( 6 ) by means of the control element ( 9 ) when the number of stored state/operational information units is greater than zero.