Functional safety in industrial automation

Ensuring safety where people and machines interact

Functional safety is essential in environments where machines could cause harm, especially when: 

  • People and machines collaborate closely
  • Equipment moves or operates autonomously
  • Loads or vehicles pose a risk to workers 
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IEC, ISO, & EU machinery regulations for functional safety compliance

Navigating safety standards is complex

Complying with evolving standards like IEC 61508, ISO 13849-1, IEC 62061, and the new EU Machinery Regulation can be overwhelming. But if you build, sell, or operate machinery in the EU, you need to follow these standards to achieve CE certification and ensure safe operation. 
Functional safety protocol software
A smarter, easier route to functional safety!

Your trusted partner in functional safety

With 15+ years of experience, HMS helps you deliver certified, trusted safety solutions: 

  • Easily connect to safety protocols PROFIsafe, CIP Safety, and FSoE (Functional Safety over EtherCAT). 
  • Rely on our TÜV-certified technology to simplify integration and shorten time to certification. 
  • Get expert support from concept to production. 

Whether you're adding safety to a compact device or building a complex automation system, we’ve got you covered. 

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Flexible functional safety solutions for any application

Four flexible ways to implement functional safety

Every application is different. That’s why we offer four flexible, future-proof solutions to match your in-house capabilities and time-to-market goals: 

  • Safe2Link Remote IO: Rugged, ready-to-install remote I/O device for fast deployment. 
  • Safe2Link Pure IO: Embedded hardware with enhanced safety functions for mobile and logistics machines. 
  • T100 Safety Hardware: Pre-certified safe I/O board for integration into factory automation. 
  • Safety protocol software: Full design flexibility for teams building their own safety hardware with integrated protocol software. 

Not sure which option is best for your application?

Solutions for a wide range of applications


Functional safety applications in the field

  1. Robots – Safe interaction with process sub-systems from an upper-layer safety network. For example, for the secure networking of robot cells with conveyor belts within paint shop applications. 
  2. PLCs – Safe communication at the heart of the system – enabling safety PLCs to communicate with distributed safety devices.
  3. Access Control – Know when someone enters a safety-critical zone by communicating the access state over the safety fieldbus.
  4. AGV/AMR management – Fleet control by connecting the wireless moving devices to a central safe PLC.
  5. AGV/AMR sensors – Connection of safety sensors, (e.g. Lidar) for personal detection on AGVs to safe PLCs.
  6. Machine tools – Breaking down complex safety applications by adding safety communication to the different machine parts. Safe IOs or safety sensors within machines enable safe operation or shut down during maintenance or conversion of machines.


Product categories

Products used for implementation of functional safety

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Safe2Link Remote IO

A plug-and-play I/O device that mounts directly on your machine for fast deployment of functional safety.

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Safe2Link Pure IO

An embedded I/O board with enhanced safety features for integration inside your device or mobile machine.

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T100 Safety Hardware

An embedded I/O board with standard safety features for integration inside your device or machine.

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Safety protocol software

Flexible, TÜV-certified software for implementing functional safety in custom hardware with full control over design.

Our customers speak fo us

Case studies and testimonials

Ixxat Safe T100 - Safety implementation: Safe remote Stop for AMRs / AGVs
Embedded network interfaces Ixxat

Safe remote Stop for AMRs / AGVs – Safety implementation

A comprehensive look at the challenges, solutions, and successes in implementing essential safety features for the European market, facilitated by a partnership with HMS Networks.
Fortress Interlocks Safety Lock with implemented PROFIsafe
Embedded network interfaces Ixxat

Easy PROFIsafe integration into safety interlocks

How Fortress Interlocks integrated functional safety communication into their amGardpro series by using industrial communication solutions from HMS.
Ixxat Safe T100 for PROFIsafe - Opening the door to more tightly integrated safety
Embedded network interfaces Ixxat

PROFIsafe module opens the door to more tightly integrated safety

Safety is an essential element of the operational matrix, as information from safety systems has effect on productivity. Integration into existing infrastructures becomes commonplace as end users look to create unified channels for information.

Q&A

Why are functional safe solutions required?

Functional safety is crucial in engineering because it ensures that systems, machinery, and devices operate reliably, even in the presence of faults or errors. It involves implementing safety measures, like redundancy and error detection, to prevent accidents or failures, particularly in critical applications like automotive control systems and industrial processes, where human safety and asset protection are paramount. Failure to achieve functional safety can lead to catastrophic consequences.

Does HMS also offer ready-to-use safety communication solutions?

Yes. HMS offers the Anybus Safe2Link Remote IO device, a rugged, plug-and-play solution for adding functional safety to machines with minimal integration effort. It enables safe communication of local safety I/Os via CIP Safety over EtherNet/IP and includes advanced safety functions like SafeBound™ and SS1-t. It's ideal for mobile systems and industrial applications where fast deployment and certified safety are essential.

How do I realize the required Safe Torque Off function with HMS components?

Using the T100 Safe IO module, the safe digital output signal can be directly connected to either a safe power-breaker relay or the STO input of the drive controller. With the access to the fieldbus provided by e.g. the Anybus CompactCom module, the STO function can be remotely controlled via the safety fieldbus protocol.

Does the T100 also offer safety logic functions?

No, the safe outputs of the T100 are solely controlled via the safety fieldbus network. However, the Safe2Link product series (Safe2Link Pure IO and Safe2Link Remote IO) provide the SafeBound™ function. This implements a configurable safe I/O logic that allows local safe inputs to directly control local safe outputs, helping reduce the safe reaction time in the application.

Where and in what applications is functional safety used?

Functional safety is applied in various engineering domains, including automotive (ABS, airbags), aerospace (flight control systems), medical devices, and process industries. It is vital in industrial automation, robots, and AGVs (Automated Guided Vehicles), ensuring safe operation of machinery and autonomous systems, preventing accidents and harm to personnel in manufacturing, logistics, and material handling processes.

Why is functional safety becoming more and more important?

Functional safety is gaining significance in industrial automation due to emerging trends such as the proliferation of collaborative robots (cobots), the deployment of highly autonomous systems, and the integration of Artificial Intelligence (AI) and Internet of Things (IoT) technologies. These trends emphasize the need to ensure safe operations in complex, interconnected industrial environments.

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Additional resources

Do you want to find out more?

Functional safety made simple: What every automation professional should know

Join our on-demand webinar and take a deep dive into functional safety - a must-watch for anyone working in industrial automation or safety-critical systems.

New EU machinery regulation

Learn more about the new EU machine regulation and its effect on it using various practical examples.

Development and consulting

Our safety development team supports customers when developing safety applications and helps with the certification of the final product.

Talk to an expert about functional safety

Have a communication expert from HMS contact you to discuss your specific requirements.