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.

 

1 Sep
1 Sep
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:

  • Portland, OR - September 01, 2026
  • Detroit, MI - October 29, 2026

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

22 Sep
22 Sep
IO-Link Interop 2026

Do you have new IO-Link products and would like to test them in advance?

On September 22 and 23, 2026, the annual IO-Link Interop Workshop will take place in Bad Soden, Germany (near Frankfurt a. M.), where international manufacturers of IO-Link devices, tools and integration components will come together to check and ensure smooth interaction in OT and the connection to IT. In addition to the standard technology of IO-Link, topics such as IO-Link Wireless, profile implementations, system integrations and IoT connections such as JSON REST API will also be covered. Particularly noteworthy is the opportunity to test IO-Link Safety devices!

The IO-Link Plugfest offers you the opportunity to test the interoperability of your devices or software in a realistic environment and ensure that they work together with products from other manufacturers without any problems. This allows you to test interoperability during the development phase and exchange information at a technical level. You also have the opportunity to clarify open questions in discussions with experts and develop a deeper understanding of the technology. Depending on the progress of your development, a test run can also be carried out with one of the available testers.

Our IO-Link experts are on hand to advise you on all questions relating to IO-Link. The direct exchange and feedback from other developers will provide you with valuable insights and possible suggestions for improving your product or solution.

The participation fee for the IO-Link Interop workshop is 285 € / participant. (This fee covers food/drinks and a dinner together in the evening - but does not include the cost of accommodation).

For organizational reasons, please register online by August 31, 2026.

15 Oct
15 Oct
IO-Link User Workshop Hungary 2026 – Budapest

The 8th IO-Link User Workshop Hungary will take place in Budapest on 15 October 2026, bringing together automation professionals, machine builders, system integrators, end users, and technology providers for a full day dedicated to the latest developments in IO-Link technology.

The primary goal of the IO-Link User Workshop is to provide industrial professionals with practical insights into the capabilities and benefits of IO-Link. During the event, participants will gain a deeper understanding of IO-Link communication, explore the latest developments of the protocol, and learn how IO-Link is supporting the digital transformation of modern manufacturing.

This year’s program will feature international experts from the IO-Link Steering Committee, who will present the latest trends, innovations, and future directions of the technology. Attendees will also have the opportunity to learn from real-world application examples presented by leading manufacturers, showcasing the services, functionalities, and advantages of their latest IO-Link-enabled products and solutions.

Throughout the conference, experienced IO-Link specialists will demonstrate how the technology simplifies the configuration, monitoring, maintenance, and replacement of industrial sensors and actuators. Through practical case studies and implementation examples, participants will gain valuable insights into the engineering, commissioning, and operation of IO-Link-based systems. The presentations will also compare conventional automation approaches with IO-Link solutions, highlighting both the technical and economic benefits of adopting IO-Link technology.

A special highlight of the 2026 event will be a roundtable discussion featuring members of the IO-Link Steering Committee. During this session, internationally recognized experts will exchange views on current industry challenges, future opportunities, and the evolving role of IO-Link in smart manufacturing and industrial digitalization. This discussion will provide attendees with a unique opportunity to gain insights directly from the experts helping to shape the future of IO-Link.

The conference presentations will be delivered in Hungarian, making the technical content easily accessible to local attendees. The roundtable discussion will be conducted in English, allowing participants to hear directly from the international Steering Committee members. To ensure that all participants can fully benefit from the discussion, Hungarian translation will be provided during the roundtable session. Attendees will also have the opportunity to interact and network with international experts and exhibitors in English throughout the event.

Alongside the presentations, visitors will have the opportunity to explore an all-day mini exhibition, where leading manufacturers will showcase their latest devices, products, and solutions. Attendees are encouraged to discuss technical questions directly with exhibitors during breaks or throughout the day, creating valuable opportunities for networking and knowledge exchange.

The event is free to attend, but registration is mandatory. Reserve your place today and join the IO-Link community in Budapest on 15 October 2026.

 

Please register here

21 Oct
Key Visual IO-Link Forum Walldorf-Wiesloch, event on Oktober 21, 20206
21 Oct
IO-Link Forum Walldorf-Wiesloch: Key to Modernization

In view of the current economic stagnation, companies are facing the challenge of improving their production facilities and making them more efficient. In this context, IO-Link is proving to be an innovative solution for optimizing systems and modernizing operations. IO-Link is a manufacturer-independent communication standard that enables sensors and actuators in automation technology to be seamlessly integrated into the higher-level control system and also easy to parameterize and configure. 

IO-Link as the key to modernization

By implementing IO-Link, systems can be made more flexible, efficient and future-proof. Companies benefit from shorter downtimes, improved adaptability and greater efficiency. Today, this is a decisive competitive advantage.

In addition, IO-Link makes it easy to integrate new sensors and actuators into existing systems. This makes it easier to modernize and retrofit production lines without having to make extensive changes to the control hardware. Companies can therefore gradually improve their systems and adapt them to new requirements without incurring high investment costs.

If you would like to know how this all works, then the IO-Link Forum on October 21, 2026 in Walldorf-Wiesloch (Germany) offers you a unique exchange of knowledge and promises valuable insights into the world of industrial automation and communication technologies with IO-Link.

The IO-Link Forum offers a wide range of topics for participants of all levels of knowledge in sessions, some of which will take place in parallel. Lectures on the topic of plant modernization in particular have been modified and expanded. A special highlight is the report on an end user's experience with IO-Link. The accompanying Microfair also offers the opportunity to exchange ideas with manufacturers and learn about new products, features and services.

The IO-Link Forum will be held in German language. It is free of charge for participants, but please register in advance.

For more information, please see our invitation flyer, the agenda or the short descriptions on the lectures for Walldorf-Wiesloch (this information is in German language only).

 

Registration

 

1 Dec
1 Dec
Training for "IO-Link Safety Certified Designer" 2026

From December 1 -3, 2026, you have again the opportunity to participate in a training course in english to become an "IO-Link Safety Certified Designer". It takes place in Karlsruhe (Germany) in cooperation with TÜV-SÜD assessment body and offers a personal TÜV certificate after passing the exam.

IO-Link Safety expands machines and systems automated with IO-Link to include functionally safe components and communication. The latest version of the IO-Link Safety specification (1.1.3) and version 1.1 of the associated test specification with protocol and functional tests build upon the successful base technology specifications in the IO-Link 2020 package. 


On the first day of the course, content will include the basics of IO-Link Safety, such as safety principles, functional objectives, requirements for IO-Link (“black channel”), risks & remedial measures, the communication protocol, fault detection, device replacement without tools, configuration, parameter setting and back-up of data, possible architectures, testing & certification, environmental regulations, and example applications.

On the second day, TÜV-SÜD will cover the basics of safety development – of FS masters and FS devices in particular – in accordance with IEC 61508/62061 and ISO 13849, enabling participants to evaluate the requirements for the engineering departments of their company. This includes an overview of the relevant standards & their content, project management, management for functional safety, required documentation, life cycle, safety functions, preferred architectures, methods for avoiding dangerous faults, FMEA, verification & validation and certification.

The third day will begin with a general overview of procedures for design, implementation and test. Furhter the creation of IODDs and dedicated tools will be covered. A host of technology and service providers will then present test systems, development kits and development support.

Written tests are administered after the completion of each day’s training. All the tests must be passed in order to receive a certificate.

A participation fee of 770 Euros is charged for the course.

You are welcome to already register for the training.

Current News
15 Oct
15 Oct
IO-Link User Workshop Hungary 2026 – Budapest

The 8th IO-Link User Workshop Hungary will take place in Budapest on 15 October 2026, bringing together automation professionals, machine builders, system integrators, end users, and technology providers for a full day dedicated to the latest developments in IO-Link technology.

The primary goal of the IO-Link User Workshop is to provide industrial professionals with practical insights into the capabilities and benefits of IO-Link. During the event, participants will gain a deeper understanding of IO-Link communication, explore the latest developments of the protocol, and learn how IO-Link is supporting the digital transformation of modern manufacturing.

This year’s program will feature international experts from the IO-Link Steering Committee, who will present the latest trends, innovations, and future directions of the technology. Attendees will also have the opportunity to learn from real-world application examples presented by leading manufacturers, showcasing the services, functionalities, and advantages of their latest IO-Link-enabled products and solutions.

Throughout the conference, experienced IO-Link specialists will demonstrate how the technology simplifies the configuration, monitoring, maintenance, and replacement of industrial sensors and actuators. Through practical case studies and implementation examples, participants will gain valuable insights into the engineering, commissioning, and operation of IO-Link-based systems. The presentations will also compare conventional automation approaches with IO-Link solutions, highlighting both the technical and economic benefits of adopting IO-Link technology.

A special highlight of the 2026 event will be a roundtable discussion featuring members of the IO-Link Steering Committee. During this session, internationally recognized experts will exchange views on current industry challenges, future opportunities, and the evolving role of IO-Link in smart manufacturing and industrial digitalization. This discussion will provide attendees with a unique opportunity to gain insights directly from the experts helping to shape the future of IO-Link.

The conference presentations will be delivered in Hungarian, making the technical content easily accessible to local attendees. The roundtable discussion will be conducted in English, allowing participants to hear directly from the international Steering Committee members. To ensure that all participants can fully benefit from the discussion, Hungarian translation will be provided during the roundtable session. Attendees will also have the opportunity to interact and network with international experts and exhibitors in English throughout the event.

Alongside the presentations, visitors will have the opportunity to explore an all-day mini exhibition, where leading manufacturers will showcase their latest devices, products, and solutions. Attendees are encouraged to discuss technical questions directly with exhibitors during breaks or throughout the day, creating valuable opportunities for networking and knowledge exchange.

The event is free to attend, but registration is mandatory. Reserve your place today and join the IO-Link community in Budapest on 15 October 2026.

 

Please register here

Free seminar day in Walldorf-Wiesloch for users, decision-makers, and developers – IO-Link Community industry gathering on October 21, 2026
IO-Link Forum for Beginners and Professionals

The IO-Link Community invites you to the IO-Link Forum 2026 in Walldorf-Wiesloch (Germany) on October 21, 2026. This annual event is the premier German-language gathering for anyone interested in learning about and discussing the possibilities, current developments, and practical applications of IO-Link. Participation is free of charge, and the event will use both theory and practical examples to illustrate the role IO-Link plays as a key technology for modernizing production facilities.

The IO-Link Forum is aimed at users, machine and plant manufacturers, decision-makers, system integrators, and developers. Participants can expect a full day of technical presentations, case studies, expert insights, and extensive networking opportunities.

“For those interested in IO-Link, this event is the ideal opportunity to gain the knowledge of an entire day’s seminar at no cost. The program offers different focal points for both IO-Link newcomers and IO-Link professionals, so that everyone can benefit from the relevant topics,” says Thomas Langer, head of the IO-Link Forum Working Group.

Two Track Options for Different Audiences

Following a joint introduction to the world of IO-Link and a practical user presentation—in which a user shares their real-world experience with IO-Link—the program splits into two specialized tracks.

The User Track is aimed at IO-Link newcomers, decision-makers, and end users. The focus is on the advantages and application possibilities of IO-Link in machines and systems, as well as best practices for successful implementation.

The expert track delves much deeper into technical details, specifications, and standardization topics. This program is aimed in particular at developers and technical specialists who want to develop their own IO-Link devices or further refine existing solutions.

Direct Exchange with Industry Experts

A special feature of the IO-Link Forum is the accompanying microfair. Each exhibitor presents its solutions at its own table and is available to visitors for one-on-one discussions. Often, these exhibitors are also the event’s speakers—and thus the leading IO-Link experts at their companies.

During the presentation and coffee breaks, participants have ample opportunity to explore the solutions on display, discuss questions, and network within the IO-Link community. Refreshments are also provided: drinks and food are available free of charge throughout the event.

Compact Knowledge and Valuable Contacts in a Single Day

With its mix of foundational knowledge, case studies, technical expertise, and the exchange of personal experiences, the IO-Link Forum 2026 offers significant added value to both newcomers and experienced specialists. The event provides a concise overview of current developments while also offering direct access to the leading experts in the IO-Link world.

Participation in the IO-Link Forum is free of charge; advance registration is requested (www.io-link.com).

New, Machine-Readable Specification for JSON Mapping

The IO-Link Community announces the release of a new specification, “JSON Integration for IO-Link,” for JSON mapping. The new Version 2 includes important functional enhancements, including support for IO-Link wireless communication and expanded MQTT functions. For the first time, the specification has been fully described using OpenAPI and AsyncAPI, making it machine-readable throughout.

Wireless Support for Flexible Applications
The new specification explicitly accounts for IO-Link Wireless. IO-Link data can thus be mapped in a standards-compliant manner even over wireless connections—such as in mobile applications, rotating machine parts, or hard-to-reach installations—without losing the uniform data structure.

Extended MQTT Functionality for IIoT
Another focus is on expanding MQTT support. The specification now defines more detailed topic structures for process data, parameters, and events. This enables more efficient, event-based communication and seamless integration with cloud platforms or edge systems.

Machine-readable specification via OpenAPI and AsyncAPI
The consistent use of OpenAPI (for REST-based interfaces) and AsyncAPI (for MQTT) enables, for the first time, a formal, automatically evaluable description of the IO-Link JSON mapping. The specification is thus not only documented for humans but also enables automated software generation for development and test systems.

Bridge between automation and the IT world
With this step, IO-Link sets a new milestone for the standardized, IT-oriented use of IO-Link data and creates optimal conditions for automation, IIoT, and cloud-based applications.

With the combination of JSON mapping, OpenAPI, AsyncAPI, wireless options, and extended MQTT, IO-Link specifically strengthens IT/OT convergence. Users gain consistent, standardized access to field data—from the sensor/actuator level all the way to data-driven IT applications.

the new specification is now available for free download the download section.