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Digital input modules

  • 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

Additional information


    2 inputs/outputs, 1-wire technology

    S20-DIDO-2/1-OVS

    • 2 quick digital inputs and outputs
    • 24 V DC, 2.4 mA input current, 0.5 A output current
    • Oversampling up to 512-fold
    • Bus synchronous operation of the inputs and outputs
    • Maximum input frequency: 200 kHz

    16 inputs

    S20-DI-16/1

    • 16 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors and actuators in 1-wire technology
    • Minimum update time < 100 μs
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    16 inputs

    S20-DI-16/1 HS

    • 16 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors and actuators in 1-wire technology
    • Minimum update time < 5 μs, bus synchronous
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    16 inputs

    S20-DI-16/4

    • 16 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors in 2-, 3- and 4-wire technology
    • Minimum update time < 100 μs
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    32 inputs

    S20-DI-32/1

    • 32 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors and actuators in 1-wire technology
    • Minimum update time < 100 μs
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    32 inputs

    S20-DI-32/1-S

    • 32 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors and actuators in 1-wire technology
    • Minimum update time < 100 μs
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    64 inputs

    S20-DI-64/1

    • 64 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • Connection of sensors and actuators in 1-wire technology
    • Minimum update time < 100 μs
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs

    8 inputs/outputs, 1-wire technology

    S20-DIDO-8/1

    • 8 digital inputs and outputs
    • 24 V DC, 2.4 mA input current, 0.5 A output current
    • Connection of sensors and actuators in 1-wire technology
    • Filter times can be set to three stages: < 100 μs, 1000 μs or 3000 μs
    • Maximum input frequency: 5 kHz

    16 Inputs, 8 outputs

    S20-DI-16/4-DO-8/3-HS

    • 16 digital inputs acc. to EN 61131-2 type 1 and type 3
    • 24 V DC, 2.4 mA
    • 8 digital outputs
    • 24 V DC, push-pull stage with ±500 mA
    • 7 μs input filter


    Subject to change, status 2019-12-09 10:21:58