Another of PI’s functions is to ensure PROFIBUS and PROFINET devices can easily be integrated into automation systems. For this reason a number of engineering support technologies have either been developed in house, or have been introduced in partnership with other organizations. These include EDDL and FDT technologies which PI supports for engineering. More recently, an active role has been played in the development of the Tool Calling Interface (TCI), a universal method of handling the wide variety of vendor-specific configuration tools found in some areas of automation such as drives.