B&R X20 DI 9371 is a 12-channel digital input module designed for the B&R X20 bus system. It is widely used in industrial automation applications to acquire external digital signals such as switch states and sensor signals.

1. Key Technical Specifications

• Module model: X20 DI 9371 (B&R full designation: X20 Digital Input 9371)
• Number of digital input channels: 12 channels
• Input type: Normally Open (NO) or Normally Closed (NC) switch inputs, with support for pull-down resistor connections
• Rated operating voltage: 24 VDC (typical)
• Maximum switching current: 10 mA (recommended)
• Switching voltage range: 0–24 VDC
• Filter time: Configurable (typical value: 1 ms) for debounce suppression
• Power consumption:
• • Total power dissipation: approx. 1.92 W
  • Bus current consumption: approx. 0.18 W
• Communication interface: EtherCAT-based X20 bus (compatible with other X20 bus protocols)
• Degree of protection: IP20 (no protection against dust or water; finger-safe)
• Operating temperature: 0°C to 55°C
• Storage temperature: −25°C to 70°C

2. Functions and Features

• High-speed digital inputs: Capable of rapidly detecting changes in external switching signals
• Hardware filtering: Built-in, programmable filters to eliminate signal bounce and improve reliability
• Module status indication: Equipped with LED indicators (e.g., channel status and error indication) for easy on-site diagnostics
• Compatibility: Designed to operate in combination with X20 series components such as the X20BM11 bus module and X20TB12 terminal block

3. Typical Applications

• Status monitoring: Monitoring the status of machine components such as safety doors, emergency stop buttons, and limit switches
• Signal acquisition: Collecting digital output signals from external sensors, such as photoelectric sensors and proximity switches
• Automation control: Serving as digital inputs in PLC systems to provide input data for control logic and decision-making

Summary:
The B&R X20 DI 9371 is a stable and highly compatible digital input module, well suited for industrial automation applications that require the reliable acquisition of multiple switching signals.