ABB 81EA04R1210 Analog Input Module

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• 1. Product Overview

  The ABB 81EA04R1210 is a high-performance analog input module designed for industrial automation systems to acquire and process analog signals, such as voltage, current, and sensor signals. It can interface with PLCs, controllers, and Distributed Control Systems (DCS) for real-time data acquisition, monitoring, and processing. The module features high precision, fast response, and reliability, suitable for process control, machine monitoring, and energy management applications.

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  2. Technical Specifications

  Parameter	Description
  Model	81EA04R1210
  Type	Analog Input Module
  Input Signal Type	Voltage (0–10 V), Current (0–20 mA / 4–20 mA)
  Channels	4 independent input channels
  Resolution	16-bit
  Accuracy	±0.1% FS
  Input Impedance	≥ 10 kΩ (Voltage input)
  Response Time	≤ 10 ms
  Supply Voltage	24 V DC
  Mounting	35 mm DIN rail / plug-in module
  Operating Temperature	-20°C ~ +60°C
  Protection	IP20
  Communication Interface	Profibus DP / Modbus RTU (optional, requires control system)
  Power Consumption	≤ 2.5 W
  Standards	IEC 61131-2 / CE certified

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  3. Key Advantages & Features

  1. High-Precision Data Acquisition

     • 16-bit resolution and ±0.1% FS accuracy ensure reliable signal measurement.

  2. Supports Multiple Signal Types

     • Voltage and current inputs compatible with various sensors and industrial devices.

  3. Fast Response & Real-Time Monitoring

     • Short response time meets real-time requirements in industrial automation.

  4. Modular Design

     • Compact structure, DIN rail or plug-in module mounting, easy to expand and maintain.

  5. Industrial-Grade Reliability

     • Strong interference immunity, suitable for harsh industrial environments, ensuring long-term stable operation.

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  4. Typical Applications

  • Industrial automation systems and PLC/DCS interface

  • Process control systems for temperature, pressure, flow, and other sensor data acquisition

  • Production line and machinery monitoring

  • Energy management and power monitoring systems

  • HVAC and industrial environment monitoring

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  5. Usage Precautions

  • Signal Matching: Ensure the input range matches the sensor output to prevent module overload.

  • Wiring Standards: Follow the manual wiring instructions to prevent errors or damage.

  • Environment: Avoid high temperature, humidity, dust, or corrosive gases; ensure proper cooling.

  • Maintenance: Periodically check terminals, module status, and communication signals to maintain stable data acquisition.

  • Power Supply: Use stable 24 V DC power to avoid voltage fluctuations affecting performance.

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The structure and details of the product：

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