PROFINET and IO-Link still on the rise!

PROFINET Node count 2019

With a market growth of 25 %, the total number of PROFINET nodes increased to an impressive 32.4 million.

2019 Node Count provides the evidence.

Even after more than 30 years since the founding of PROFIBUS & PROFINET International (PI), its technology is still very well received in the market. “To us, this is the ultimate proof that we’ve made a series of right decisions regarding the development of our technologies,” said Karsten Schneider, chairman of PROFIBUS and PROFINET International (PI), commenting on the latest node counts.

In the case of both PROFINET and IO-Link, the working group experts have not only continued developing the communication aspects of the technologies, but have also provided crucial additional support to make them suitable for use in Industry 4.0-compliant production. Evidence of this is the two companion specifications, in which OPC UA-compatible information models for PROFINET and IO-Link are described.

Largest annual growth for IO-Link and PROFINET

IO-Link saw its largest annual increase (40 %) in 2019, achieving the same growth rate as the year before. This shows that IO-Link is establishing itself in the market for the long term. The total number of installed IO-Link devices is now more than 16 million.

With 6.4 million new devices installed in the market in 2019, PROFINET saw its largest annual increase so far. This corresponds to a growth rate of 25 % and contributes to the total node count of 32.4 million. “PROFINET represents reliable and sustainable communication technology which already meets requirements from an Industry 4.0 perspective very well today. To ensure that this remains the case for the long term, our experts – increasingly in cooperation with experts at other organizations as well – are continuously working on firmly anchoring PROFINET as an enabler for digitization in production,” continued Karsten Schneider. This is also being impressively demonstrated by the results of other market studies, like the one by IHS Markit where PROFINET was determined to be the most widely used Ethernet-based system in the world with a share of 29 %.

With its increase of 2.5 million nodes in 2019, the number of new PROFIsafe nodes installed has now exceeded the 2 million mark two years in a row. The total number of PROFIsafe nodes installed now lies close to 14 million.

PROFIsafe and PROFINET continue to climb

Despite its long market presence, PROFIBUS has also managed to once again report an impressive number of new nodes – 1.9 million – in 2019. By the end of 2019, more than 62 million PROFIBUS devices were installed in industrial plants worldwide, with over 13 million of them being incorporated into process-engineering plants.

“Motivated by this market success, our members around the globe are strongly committed to continued development and many different marketing projects,” according to Schneider. In this context, we can hope that the constraints caused by the virus don’t last long and that people will quickly be able to get back to normal in both the business and private spheres.

More about PROFINET

More about IO-Link

More about PROFIsafe

More about PROFIBUS


IO-Link Node Count 2019
IO-Link now has a base of 16 million installed IO-Link devices and is thus firmly established in the market.

Press contact:                                                                                        

PI (PROFIBUS & PROFINET International)

PROFIBUS Nutzerorganisation e. V.

Barbara Weber

Haid-und-Neu-Str. 7

D-76131 Karlsruhe, Germany

Phone: +49 (0) 7 21/96 58-5 49

Fax: +49 (0) 7 21/96 58-5 89