SMX modular

Safe masters and slaves in the modular series

In the SMX series, the SMX Modular provides a standardized solution for all machine safety tasks. With the PLC commands and more than 280 type-tested safety functions, even complex machining and production centers can be safeguarded easily and transparently.

The decentralized system architecture of the SMX Modular with its master, I/O and technology functions allows a high degree of expansion with up to 32 slaves and just as many drive axes.

Series at a glance

  • With integrated OPC UA server and gateway to sensor / actuator level for status and condition information
  • Easy process data exchange via OPC UA publisher/subscriber services
  • Access for service and asset services
  • Simple and transparent programming and parameterization with SafePLC²
  • Flexible use through centralized and decentralized extensions,
    with additional variants for connecting barcode-based safe positioning systems
  • Drive monitoring for up to 12 axes with extended encoder functionality
  • Safe data exchange between several base modules via Ethernet-based protocols with SMMC (Safe Master - Master Communication)
  • Suitable up to PL e (EN ISO 13849-1) and SIL3 (IEC 61508)
  • Safe and non-safe fieldbus interface for connection to higher control levels (PROFIBUS, PROFINET, DeviceNET, EtherNet/IP, CANopen, Modbus TCP, EtherCAT, FSoE, PROFIsafe)

SMX Modular features

  • Logic processing up to PL e according to EN ISO 13849-1 or SIL 3 according to IEC 61508
  • Freely programmable small controller for up to 3000 IL instructions
  • Functionplan oriented programming
  • Pulse outputs for cross-circuit detection of digital input signals
  • External contact monitoring of connected switching devices (EMU)
  • Monitored relay outputs for safety-related functions
  • Switchable safe semiconductor outputs pn-, pp-switching for safety-relevant functions
  • Complete speed and position-related safety functions for drive monitoring according to IEC 61800-5-2 integrated in firmware (spatial functions for safe speed and range monitoring possible)
  • Parameter management for expansion modules in the basic unit
  • Extensive diagnostic functions integrated
  • Coded status display via front 7-segment display and status LEDs
  • Multifunction button (Quit, Start, Reset) can be operated from the front side of base module
  • Fast guaranteed response time of 28ms, Fast Channel 3ms
  • SMMC safe master - master communication
  • Optional safe/ non-safe fieldbus interface


Extendable to:

  • 126 safe digitale Inputs
  • 36 safe digital Outputs
  • 120 safe digital I/O's
  • 50 safe relay outputs 
  • 42 auxiliary outputs
  • And/or 12 safe axes