Problem description Many sequences in automation technology are characterised by one process step having to take place after another. Sensors check whether one step has been successfully completed before the next step starts. This is referred to as sequencing. There is a special programming technique available for user-friendly sequencing. A simple sequence is to be programmed that lifts a workpiece in the handling station from the holder using the vertically arranged cylinder. The workpiece should then be released again when a pushbutton is actuated.