140 storage and retrieval cells, a gross capacity of over 4,000 tonnes: This is how our silo in Hamburg can be summarised in figures. The renewal of the control system was therefore a real major project. What was the motivation behind it, how did the conversion proceed and what is different now? Marco Franz, our General Manager in Hamburg, Moritz Rohde, our Technology & Technical Innovation Manager and Patrick Zimmer, Operation Manager in Hamburg take you behind the scenes.