Flexi Compact Safety Controller

Jan. 20, 2021

The Flexi Compact is a modular safety controller that enables users of automated machines to operate more productively with the scalable performance and intelligent diagnostic functions of the safety controller.


The Flexi Compact is a safety controller for machines with medium to complex safety logic. It offers exceptional user-friendliness, flexibility, efficiency, and cost-effectiveness. The Flexi Compact also integrates into a variety of fieldbuses and Industry 4.0 applications. Common applications include compact systems, robots, packaging machines, and basic motion control.


The modular hardware platform enables integration in a flexible, application-appropriate, and cost-efficient manner. If the demands on the safety controller increase, it can subsequently be adapted or extended by up to 12 modules. The Safety Designer engineering tool with its certified function blocks guarantees intuitive, fast, and easy configuration and documentation of the safety logic via drag and drop.


The application-optimized slim housing saves space in the control cabinet. Front connectors can be assembled in advance and allow simple, time-, and cost-efficient wiring. Easily coded slots offer additional installation safety. The TFT display visualizes all relevant inputs and settings during commissioning and servicing, which enables fast setup as well as immediate use of the safety controller.


Its safety-certified high-speed backplane bus is characterized by its short response times. This enables optimization of safety distances to the machine and allows for shorter cycle times in highly dynamic processes. Gateways in commonly used Fieldbus environments and automation systems allow sensor information and machine data to be continuously provided to Industry 4.0 applications.


The Flexi Compact reduces costly troubleshooting and downtimes. It reads application-specific diagnostic data in real-time and makes it available for condition monitoring. This makes localizing and analyzing faults a fast process. Evaluations of sensor information for predictive maintenance purposes are also available more quickly. In this way, the Flexi Compact makes an effective contribution to minimizing downtimes and production outages.

  • Software-programmable safety controller with a modular hardware platform
  • High-performance Safety over EtherCAT backplane bus
  • User-friendly housing in a slim design
  • Intuitive Safety Designer configuration software
  • Data communication in common fieldbus systems
  • Safe series connection with Flexi Loop
Safety levelPL e, SIL3, SILCL3Configuration methodVia software (Safety Designer)System construction


1 main module

0 ... 12 expansion modules (excluding maximum 1 gateway)

Fieldbus, industrial networkModbus, EtherCAT, PROFINETSafe series connection with Flexi LoopFlexi Loop