The proposed thesis provides an excellent structure to present a complete and structured investigation into the design and simulation of a plc controlled five-floor good-lifts systems based upon the codesys-platform. This study clearly displays a strong technological base for integrating different sub-systems (motion control, door operation, sensors and hmi) for the PLC. The inclusion of both an automated mode and manual operating mode combined with all the security functions needed for safe use show how this system can be practically used. The description of the simulation is also very clear and shows that the developed control logic is reliable and responsive. In general the thesis demonstrates that the presented solution fulfills the required functionalities and safety demands and therefore validates the application of virtual prototype development for the creation of Industry 4.0-compliant automation systems.