A conveying device for conveying containers in a conveying direction, the containers having bottoms, each of which has a cross-section characterized by a standing-bottom diameter or a smaller and larger standing-bottom diameter. The beam includes a rear raiser including a horizontal plate fixed to the rear central cross member and further includes a blanking sheet fixed to the horizontal plate of the rear raiser and including at least one anchoring reinforcement assembled on the inside of the hollow beam. Current flow through the diode string is disabled by a PMOS transistor controlled by VDD, and current flow through the inverter is disabled by the PMOS transistor of the inverter, which is also controlled by VDD. Grouping of sub-fields in 2 sub-field groups, of similar structure.