Another Record Year for PI Technologies

Every year PROFIBUS & PROFINET International (PI) conducts an audited count of installed nodes for PI technologies. They recently concluded its annual notarial count for 2018. As in previous years, the numbers from 2018 indicate a very positive trend! PROFINET continues its accelerated growth and reaches 26 million devices, PROFIsafe and IO-Link surpass the 10 million mark, and PROFIBUS remains stable in the process industries.

For PROFINET, 5.1 million devices were brought to market in 2018. This represents an increase of 0.6 million over the 2017 audit. By the end of 2018, a total of 26 million PROFINET devices were working to automate production. The number of PROFIBUS devices installed in 2018 (2.4 million) rose slightly as compared to the previous year and the total PROFIBUS node count reached nearly 61 million. During 2018, 7.5 million PROFIBUS and PROFINET nodes were installed. This number represents an all-time high.

PROFIBUS’s trend in process automation remains stable. Though the annual value reached in 2018 – 0.8 million – was slightly less than the previous year, a total of 12.3 million PROFIBUS devices (20% of the overall total of 61 million) are now being used in process systems.

Passing the 10 Million Mark


2.2 million PROFIsafe nodes were brought to market in 2018. As compared to the previous year, PROFIsafe saw its highest annual gain ever. Overall, PROFIsafe passed the 10-million hurdle by a considerable margin with its 11 million nodes.


As in previous years, in 2018 IO-Link achieved a record in two regards: yearly growth and overall node count. 3.3 million IO-Link nodes were brought to market and with an overall count of 11.4 million nodes, IO-Link passed the 10-million hurdle.

Read the full press release HERE