‘Safety first’ with functional safety solutions from Kendrion
Functional safety is now standard in modern machines. With the certified FIO Safety PLC and the associated EtherCAT Safety I/O modules, KENDRION relies on proven technologies: the standard CODESYS programming environment and the powerful EtherCAT® real-time fieldbus.

Integrated safety for demanding motion and robotic solutions
Control programme and safety functionalities in one tool make data exchange simple and clear. All data is available everywhere. The modular, EtherCAT-based FIO I/O system from KENDRION enables the integration of both safe and non-safety relevant modules. It is therefore a practical solution for your entire peripheral expansion at considerably lower engineering and commissioning costs. As a remote I/O, it is connected to the higher-level controller by means of bus couplers. Or safety PLC and I/O modules can be added to the FIO Controller as modular PLCs. Further EtherCAT Safety (FSoE) devices can be connected and safely monitored and controlled using the Safety Controller.
CODESYS Safety Control (Safety PLC)
Following the TÜV certification, KENDRION also received PLCopen safety certification for the safety control. This certificate means that the decentralised SIL3 safety control FIO Safety PLC in accordance with IEC 61508 can be easily integrated everywhere. The configuration and programming is created with CODESYS and transferred via EtherCAT/ FSoE. CODESYS provides numerous certified safety components, such as emergency stop, two-hand operation, muting, etc. according to PLCopen. In addition, the user can develop customised function blocks for his application if required. Thus, all FSoE slaves, such as drives or I/Os, can be safely controlled and continuously monitored.

FSoE Safety I/O – safe digital inputs and outputs for the most demanding requirements
The FIO product family offers a wide range of digital modules with safe inputs and outputs for challenging safety applications.
The inputs are ideal for connecting sensors with potential-free contacts and can be flexibly combined with integrated or external test pulse outputs. The outputs switch 24 V DC loads independently of each other, which must be reliably disconnected in the event of a fault.
All inputs and outputs meet the highest safety standards:
- Category 4, PL e according to EN ISO 13849-1
- SIL 3 according to IEC 61508/62061
Flexible integration thanks to FSoE
In addition to the FIO Safety PLC, any other safety control with FSoE (Fail Safe over EtherCAT) can be used for safe control of the modules. The modules support standard-compliant FSoE, so that they are compatible with any FSoE masters.
Why is the Kendrion Safety PLC particularly suitable for applications in robotics and AGVs?
Thanks to the integrated FPU, a large process image and the option of programming complex functions in C, our Safety PLC is ideal for demanding applications in the field of robotics and automated guided vehicles (AGVs).