Since the beginnings of industry, the automation of manufacturing and production processes has been constantly evolving. This evolution is being possible due to the integration of classic technologies like mechanics and electricity with other more modern ones such as electronics, computing, communications, etc.
This integration of technologies is well represented by using the “Automation Pyramid” graphic, which includes the five technological levels which can be considered in an industrial environment. The technologies interrelate, both within each level and between the different levels by using industrial communications. The automation pyramid is evolving at the same time as industry, so lines between levels are progressively disappearing these levels are merging.