What is IO-Link?

IO-Link is the first globally standardized IO technology (IEC 61131-9) for communicating with sensors and actuators. The powerful point-to-point communication is based on the long-established 3-wire sensor and actuator connection without any additional requirements for the cable material. IO-Link is therefore not a fieldbus, but the evolutionary further development of the previous, tried and tested connection technology for sensors and actuators.

 

10 Mar
10 Mar
New Dates for IO-Link User Workhops in the US

This free user workshop / training class prepares attendees to apply IO-Link in their own project. Lunch is included. Technical details of the technology are provided along with practical demonstrations.  The class is designed for:

  • End-Users
  • OEMs / Machine Builders
  • System Integrators / Distributors
  • Manufacturers of automation devices
  •  

Topics:

  • Background
  • Interface and Protocol
  • USB of Automation
  • Higher-level Integration
  • Application Use-Cases
  • Diagnostics
  • Profiles
  • Safety
  • Wireless

Following the dates / locations:

  • Charlotte, NC - March 10, 2026
  • Milwaukee, WI -May 12, 2026
  • Portland, OR - September 01, 2026

More information and registration at: https://io-link.us/events/

20 Apr
20 Apr
IO-Link at the Hannover Fair (Germany)

IO-Link will be on the Hannover Fair in Germany, April 20 - 24, 2026. The IO-Link Community will be part of the PI Booth in Hall 27, D37.

2 Jun
2 Jun
IO-Link on the aaa in Hamburg (Germany)

The IO-Link Community will exhibit on the aaa in Hamburg (Germany) for the very first time on June 02-03, 2026 (Booth 753).

At all about automation in Hamburg, users and decision-makers will meet with manufacturers of automation components and systems, suppliers of robotics solutions, integrators, digitalisation experts, software providers, service providers and distributors.
 

Exciting races on a miniature racetrack can be experienced at the trade fair stand. Every visitor is cordially invited to beat the lap record!

The racetrack is equipped with many different devices from various manufacturers in the IO-Link community. The most important race data is recorded with IO-Link and visualized on the screen. This is a small-scale demonstration of what has proven itself in large systems: interoperability of the IO-Link master with all available devices and simple control integration.

If you would like to learn more about this unique IO-Link concept, you are welcome to visit us at booth 753. Of course, many member companies will also be exhibiting at their own booths.

We look forward to seeing you in June in Hamburg!

Current News
10 Mar
10 Mar
IO-Link on the aaa in Friedrichshafen (Germany)

The All About Automation (AAA) trade fair has become the highlight of the automation industry on Lake Constance. This year, the IO-Link Community will be represented in Friedrichshafen for the first time.

Exciting races on a miniature racetrack can be experienced at the trade fair stand. Every visitor is cordially invited to beat the lap record!

The racetrack is equipped with many different devices from various manufacturers in the IO-Link community. The most important race data is recorded with IO-Link and visualized on the screen. This is a small-scale demonstration of what has proven itself in large systems: interoperability of the IO-Link master with all available devices and simple control integration.

If you would like to learn more about this unique IO-Link concept, you are welcome to visit us at booth B3-516. At the same time, interesting presentations will be held in the Talk Lounge. Of course, many member companies will also be exhibiting at their own booths.

We look forward to seeing you on March 10 and 11, 2026, at the Friedrichshafen Exhibition Center.

“From computer pioneer to smart factory” – IO-Link Forum at the Heinz Nixdorf MuseumsForum

The IO-Link Forum 2025 in Paderborn, Germany showed impressively how much the spirit of Heinz Nixdorf, one of the most important pioneers of digital information processing in Germany, is still reflected in industrial innovations today. In the museum forum named after him, more than 100 participants discussed the future of networked sensor technology – and how IO-Link makes production processes more intelligent, transparent, and flexible.

Practical and user-oriented

The one-day event offered a compact mix of basic knowledge, current developments, and an accompanying micro-fair where manufacturers presented their IO-Link solutions. The aim of the forum was to introduce end users to the topic of IO-Link in a practical way and highlight the concrete benefits. A particular highlight was the user presentation by HARTING, which provided insights into its digitized production. The company already uses around 500 IO-Link sensors in various areas and utilizes a continuous data chain – from the sensor to the IO-Link master to evaluation via MQTT and Grafana.

Three examples demonstrated the practical benefits:

  • Cooling water monitoring: Automated quality control replacing manual sampling
  • Cooling lubricant management: Continuous measurement with automatic media correction
  • Compressed air leak detection: Early identification of losses increases energy efficiency

Core technologies clearly explained

Further presentations introduced the basic principles of IO-Link, current applications, and the new IO-Link profiles, which will significantly simplify cross-manufacturer sensor integration in the future. Topics such as IO-Link Wireless, simplified device integration, and OT/IT networking were also presented clearly and concisely.

Conclusion

The IO-Link Forum demonstrated how practical and visionary the technology has become. Presenting these forward-looking technologies at the Heinz Nixdorf MuseumsForum provided a fitting backdrop: where the foundations of digitalization were once celebrated, the knowledge for tomorrow's smart production is now being created.
 

IO-Link Competence Centers offer technical support world-wide.
The IO-Link Community is growing!

A new IO-Link Competence Center (IOL-CC) has been established in Genova, Italy — further strengthening our global network of IO-Link expertise.

An IO-Link Competence Center serves as a technical hub for IO-Link technology, offering expert support, testing, and training to manufacturers, integrators, and users to ensure consistent and interoperable IO-Link implementations.

All IOL-CCs are approved by the IO-Link Community and receive a signed certificate upon successful audit, confirming their technical competence and commitment to IO-Link standards.

With Genoa Fieldbus Competence Centre joining the network, there are now 10 IO-Link Competence Centers worldwide — located in Brazil, China, Czech Republic, Germany, Italy, and the USA.

Learn more about the IO-Link Competence Center network.