Flexi Soft

The Flexi Soft safety controller can be programmed via software. Thanks to the modular hardware platform, Flexi Soft provides a tailored and efficient solution for a whole host of safety applications. A wide range of modules are available: main modules, gateways, digital and analog input/output modules, Motion Control modules, as well as relay modules. The license-free Flexi Soft Designer configuration software enables intuitive programming, rapid commissioning, and continuous diagnostics down to the automation level. Functions to enable safe controller networking, safe series connection, or safe drive monitoring reduce costs and boost productivity. A whole host of additional functions means that Flexi Soft is able to bridge the gap to system solutions from SICK.


  • Safety controller with modular hardware platform
  • Configuration saved in the system plug
  • Safe controller networking with Flexi Line
  • Safe series connection with Flexi Loop
  • Safe drive monitoring
  • Safe analog value monitoring
  • Flexi Soft Designer license-free configuration software


Safety level PL e, SIL3, SILCL3
Configuration method Via software
System construction Modular
1 system plug
1 main module
0 … 2 gateways
0 … 12 expansion modules
0 … 8 relay modules
Fieldbus, industrial network CANopen, CC-Link, DeviceNet™, EtherNet/IP™, EtherCAT®, Modbus,
PROFINET, PROFIBUS DP, EFI-pro, Ethernet, IO-Link, Serial, CAN, FI, SSI,
Safe SICK device communication EFI
Safe networking Flexi Link
Flexi Line
Safe drive monitoring Yes
Safe series connection with Flexi Loop Flexi Loop

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