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S20 (IP20)

I/O system for the control cabinet


  • Compact, modular, and simple
  • Space-saving I/O technology for DIN rail mounting
  • Individually combinable modules
  • Innovative assembly and installation concept

Additional information

S20 in protection class IP20 is the flexibly scalable I/O toolkit for shortest cycle times as well as the highest precision and ensures a real-time data flow between the control and peripherals – whether locally on the XM control or as a decentralized I/O station.

  • Sercos
  • PROFINET RT, PROFIBUS
  • Ethernet, EtherNet/IP, EtherCAT®
  • For the acquisition of analog signals
  • Current and voltage measuring ranges
  • 4 or 8 channels
  • Measured value display 16 bits
  • Connection of sensors in 2-wire technology
  • For the output of analog signals
  • Current and voltage measuring ranges
  • 4 or 8 channels
  • Overload and short-circuit protected
  • Connection of actuators in 2-wire connection technology
  • For the acquisition of digital signals
  • 24 V DC, 2.4 mA
  • Connection of sensors in 1-, 2-, 3- and 4-wire technology
  • Minimum update time < 100 μs, bus synchronous
  • Maximum input frequency: 5 kHz
  • For the output of digital signals
  • 24 V DC/0.5 A or 0.2 A per channel
  • Short-circuit-proof outputs
  • Connection of actuators in 1-, 2-, or 3-wire connection technology
  • For the acquisition of encoder positions (SSI or incremental encoders)
  • Counting of pulses
  • Control of hydraulic axes
  • Control of valves with PWM
  • Bus-synchronous I/O processing
  • For the acquisition of resistive temperature sensors or thermocouples
  • 4 or 8 inputs
  • Overload and short-circuit protected
  • Connection of actuators in 2-, 3-, or 4-wire connection technology
  • Backfeed from UBus within a S20-station
  • For connecting serial interface devices
  • Baud rates up to 250 kBaud
  • RS-232 and RS-484/422
  • Multi-protocol support
  • Certified KNX master
  • Safety-oriented inputs and outputs
  • SIL 3 according to EN 61508
  • SIL CL 3 according to EN 62061
  • Category 4/PL e as per EN ISO 13849-1
  • CIP Safety on Sercos


Subject to change, status 2019-05-08 19:29:15