SICK Flexi Soft Series Safety Controller

Modular controller design with gateway, I/O , analog, digital, relay and motion control variants. Software adjustable logic and Flexi Loop safe connection.

This model has 39 variants.
Effective August 29th, 2025 SICK has added a 9.8% surcharge for all of their products. The surcharge will appear as a separate line item on each sales order.
Part Number
  • Flexi Soft Series
Highlights...

Features

  • Model type: Main, IO-Link, gateway, analog, relay and motion motion control modules
  • Safety level: PL e, SIL 3
  • System:
    • 1 system plug
    • 1 main module
    • 0 to 12 expansion modules
    • 0 to 8 relay modules
    • 0 to 2 gateways
  • Configuration: software / hard-wired
  • Safe networking: Flexi Link, Flexi Line, global emergency stop
  • EFI / EFI-pro communication
  • Gateway(s):
    • CANopen, CC-Link, DeviceNet, EtherNet/IP, EtherCAT, Modbus
    • PROFINET, PROFIBUS DP, EFI-pro, SSI, Incremental, Serial
  • Flexi Loop safe series connection (with select models)

The SICK Flexi Soft Series Safety Controller provides reliable solutions for both simple and complex applications thanks to the versatile offerings of main, I/O, digital, analog, relay, and gateway modules. This highly configurable product family offers vast buildability to meet the specific needs of networked safety systems, with quick connection via spring-loaded terminals. Flexi Soft enables functionality for safe controller networking, safe series connection, or safe drive monitoring. The Flexi Soft Designer configuration software provides a user friendly interface for adjustment of settings, documentation of events and diagnostics of connected sensors. Pairing with SICK's Flexi Loop safe connection enables the integration of up to 32 sensors in series. The Flexi Soft can further be outfitted for complex, safe-connection application requirements through features such as Safe EFI-Pro communication.

Integration into higher-level controllers can be accomplished via the gateway modules, with support offered for all common fieldbuses. Flexi Soft variants can also connect to sensors operating with analog output signaling, making them ideal for driving speed and temperature monitoring, as well as fall protection for automated guide vehicles.