The present bachelor thesis explains the functioning and automatization behind a modern roof
assembly line in a car manufacturing center. The assembly line’s automatic sequences are analyzed
with the aid of GRAFCET charts elaborated based on the author’s observations and work on said line.
A chapter is dedicated to discussing the communications between the three programmable logic
controllers that govern the assembly process, while another chapter exposes the handling of safety
procedures, both physical and programmable. A human machine interface is developed and designed
to aid in the monitoring of safety during production, and two automated stations which aim to improve
the line’s performance. A brief environmental analysis concerning the aluminum waste generated
during the assembly process is also put together, as well as an economic analysis. Finally, an evaluation
of the improvements made on the production performance is made
