Abstract: The invention relates to a method for analyzing an automation software of an automation device, in particular of a programmable logic controller, of a technical device, in particular of the machine and/or of the installation. The automation device is enabled to execute automation technology tasks by means of automation software that is executable by the automation device, wherein the automation software comprises programs and data with which the programs interact. A first version of the automation software stored in a data memory of the automation device at a first point in time is compared with a second version of the automation software stored in the data memory of the automation device at a second point in time by analysis software.