Abstract: A method of controlling an electronic shelf label that is attached to a shelf rail at a position along the shelf rail and controlled by a local rail controller at the shelf rail, wherein the rail controller stores a list of display data, wherein an element of the list of display data is intended to be submitted to an electronic shelf label and represents the information that shall be displayed there, and detects the attachment of an electronic shelf label to the shelf rail or the removal of an electronic shelf label from the shelf rail, and triggers an action based on the detection of the attachment or the detection of the removal of an electronic shelf label under consideration of the list of display data.

Abstract: Shelf rail maintenance device (14) for the maintenance of at least one electrical conductor (6) of a shelf rail (3), wherein the electrical conductor (6) is located in a receiving groove (4) of an electronic shelf rail (3) and extends freely accessible along the length extension of the receiving groove (4), wherein the maintenance device (14) comprises at least one interaction element (15; 15A, 15B, 15C) which is designed for maintenance interaction with the at least one electrical conductor (6) of the electronic shelf rail (3), characterized in that at least a part of the maintenance device (14) is designed to fit into the receiving groove (4), such that the at least one interaction element (15; 15A, 15B, 15C) is position-able in the receiving groove (14) corresponding to the location of the at least one electrical conductor (6).

Abstract: Method for logically linking an electronic display unit to a product by means of a linking device, wherein the display unit and the product are located on a mounting structure in the detection region of an image detecting device, wherein the method comprises the method steps listed below, namely: generating image data, which represent an optical depiction of the product and the display unit by means of the image detecting device and transmitting these image data to the linking device, by means of which the logical link can be established, generating a trigger signal by means of a trigger stage which is assigned to the mounting structure, on which the display unit is mounted, wherein the trigger signal indicates the presence of an unlinked display unit in the detection region, and logically linking the as yet unlinked electronic display unit to the product in accordance with the occurrence of the trigger signal.