This thesis elaborates the current structure of the ski-lift and it also explains functions for operating and control system of ski-lift in the Siemens S7-1200 series. It also explains and creates visualization interface (HMI) on the operating panel of the company Siemens for operating and control system of ski-lift. The paper explains the hardware of the ski-lift, and gives detailed features of PLC, HMI panels and SCADA systems. Furthermore, it elaborates the system requirements and presents components of the system in detail and gives reasons for their introduction into the system. In this way, we explained two electric motors and the role of frequency converters, two systems of the ski-lift, its way of operating, the role of the big and the small lift, scissors lift for ropes where both automatic and manual functional modes are explained, carrier detection, and the way it is implemented. Besides the functions for operating and control systems of the ski-lift this paper presents the function of enabling barcode scanning without operator's confirmation. This way of function results in a better performance, and better mobility, especially when there are large crowds of skiers on the ski-lift system.