2025-06-18 BY
IN Company News

Product Description

The ABB RXIDK 2H 1MRK000838-HA is a high-reliability digital input module designed for industrial automation systems. It interfaces with discrete field devices and transmits status signals to ABB’s PLC and control platforms. This module is part of ABB’s extensive automation portfolio and is engineered to provide robust performance in harsh industrial environments.

Product Parameters

  • Channels: 16 isolated digital inputs.
  • Input Voltage: 18–30 V DC (sink/source compatible).
  • Input Current: 4 mA per channel (typical).
  • Filter Time: Adjustable (0.2–32 ms, software-selectable).
  • Isolation: Electrical isolation (500 V AC between channels and ground).
  • Communication Interface: Serial (via controller backplane).
  • Operating Temperature: -20°C to +60°C.
  • Mounting: DIN rail (TS 35/7.5 or TS 35/15).
  • Dimensions (W×H×D): 36 mm × 125 mm × 100 mm.
  • Certifications: CE, UL, cUL, IEC 61131-2 (PLC standard).

Advantages and Features

  • Robust Isolation: Each input channel includes optical isolation to prevent ground loops and voltage spikes, ensuring signal integrity in high-noise environments.
  • Intelligent Diagnostics: LED status indicators for real-time fault detection and power status.
  • Adjustable Filter Time: Reduces false triggers from transient noise, improving reliability in applications with inductive loads.
  • Hot-Swappable Design: Allows replacement without system shutdown, minimizing maintenance downtime.
  • Wide Operating Temperature Range: Suitable for environments from -20°C to +60°C.

Application Fields and Case Studies

  • Manufacturing: Used in machine tool monitoring, robotics, and assembly line automation.
  • Process Industries: Ideal for valve position sensing, level switches in chemical plants, and safety interlocks in oil and gas facilities.
  • Energy and Utilities: Monitors generator status and circuit breaker feedback in power substations.
Case Study: In a steel mill’s conveyor system, the ABB RXIDK 2H 1MRK000838-HA accurately detected proximity switch signals amidst heavy electromagnetic interference, achieving a 99.9% signal accuracy rate over 10,000 operational hours.

Competitive Comparison

  • Superior Environmental Resilience: Wider temperature range (-20°C to +60°C) and enhanced surge protection (up to 1.2 kV) compared to many competitors.
  • Advanced Diagnostics: Real-time channel fault indication enables faster troubleshooting.
  • Native Integration: Seamless compatibility with ABB controllers eliminates the need for custom drivers.

Selection Suggestions

  • Signal Type: Ensure compatibility with 24 V DC input signals and confirm whether sink or source configuration is required for field devices.
  • Noise Environment: Prioritize the RXIDK 2H 1MRK000838-HA for applications near high-voltage equipment or motors, where its isolation and filtering capabilities are critical.
  • System Scalability: Use multiple modules for systems requiring more than 16 inputs, leveraging ABB’s modular architecture for seamless expansion.

Precautions

  • Wiring Practices: Use shielded cables for input connections to minimize EMI, and separate low-voltage signal wires from power cables by at least 100 mm.
  • Voltage Check: Verify the input voltage (18–30 V DC) before installation to avoid damage from incorrect power supply.
  • Thermal Management: Install the module in a ventilated enclosure with proper airflow, as prolonged operation above 60°C may reduce component lifespan

    ABB RXIDK 2H 1MRK000838-HA

    ABB RXIDK 2H 1MRK000838-HA