Bachmann|SDI208 00014544-00|Safety digital input module

Description
Bachmann SDI208 00014544-00 is a safety digital input module with 16 inputs, designed for high-integrity applications up to SIL 3/PL e.

Features
Offers redundant input pairing for high safety; galvanic isolation; LED status indicators per channel; compatible with M200 controller; programmable via SolutionCenter.

Technical Specifications

• Inputs

  • Total digital inputs: 16
  • Usable as 8 redundant pairs (PL e / SIL 3 / Cat 4)
  • Input voltage range (H): 15 V DC to 34 V DC
  • Input voltage range (L): -34 V DC to +5 V DC
  • Minimum input current: 3.5 mA at 24 V DC
  • Input delay: 300 µs (HW), 1 ms (SW) with test pulsing disabled

• Safety & Monitoring

  • Safety standards: IEC 61508, ISO 13849-1, IEC 62061, IEC 61511
  • Redundant 32-bit microcontroller monitoring
  • Reverse polarity protection

• Power Supply

  • Internal power: 5 V / 500 mA via backplane
  • External power: 24 V DC (18–34 V)
  • Current consumption: 65 mA typical + sensor load

• Isolation

  • Galvanic isolation from system: 500 V
  • Galvanic isolation between input groups: 500 V

• Environmental

  • Operating temperature: -30 °C to +60 °C
  • Storage temperature: -40 °C to +85 °C
  • Humidity: 5–95% (with condensation allowed)
  • Altitude: Up to 4500 m