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PROFIsafe, PROFIdrive and PROFIBUS PA - the most prominent of the PI profiles - are recognized worldwide. Product testing to ensure compliance with these and other profiles is undertaken by the global network of independent accredited Test Labs.

PROFIBUS is a standardized, open, digital communications system for all areas of application in manufacturing and process automation.

PROFINET is the innovative open standard for Industrial Ethernet. It satisfies all requirements of automation technology..

IO-LINK is an independent sensor / actuator interface solution for use with PROFIBUS and PROFINET.