Robot-based assistance systems are taking on a large number of tasks in the manufacturing industry. Thereby, they are acting more and more autonomously and are also able to work directly with humans in applications of human-robot collaboration. This creates a hazard potential for humans, which is influenced by human factors. In this regard, Situation Awareness (SA) will play an important role. SA is a construct to map the ongoing mental processes of a person interacting with a complex situation. This paper describes the conception of a full-scope simulator as a model of such a system in an experimental environment. Different environmental influences can be created and reproduced in the simulator. With this simulation, disorders and possibilities of attentional control, conclusions about the situational awareness of the probands are expected to be considered. The simulation is completely autonomous and allows an experimental design with several probands. The simulator will also allow comprehensible and repeatable scientific experiments based on the SAGAT method.