ABB DIO-400 Digital Input/Output Module

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• Module Overview / Function

  The DIO-400 digital input/output module is used in ABB control systems to provide both digital signal acquisition and output control. The module can receive digital inputs such as switch signals and logic signals, and output digital signals to drive relays, contactors, and other actuators, enabling monitoring and automated control of industrial equipment.

  Key Technical Specifications

  • Module type: Digital Input/Output Module

  • Model: DIO-400

  • Input signal type: Digital logic signals (24 V DC / 110–230 V AC, optional)

  • Output signal type: Digital switching signal, capable of driving relays or contactors

  • Number of input/output channels: Typically 8 inputs / 8 outputs, configurable

  • Response time: High-speed input acquisition and output

  • Power supply: 24–48 V DC or 110–230 V AC

  • Mounting method: DIN rail or slot installation

  • Environmental suitability: Industrial-grade, resistant to high temperature, humidity, and vibration

  • Functional features: Digital signal acquisition and output, status monitoring, fault protection, communication support

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  Advantages & Features

  1. High-speed digital I/O: Enables real-time equipment monitoring and control

  2. Modular design: Easy installation, maintenance, and system expansion

  3. Industrial-grade reliability: Suitable for harsh environments

  4. Status monitoring: Provides feedback on input/output signal status

  5. Strong compatibility: Seamless integration with ABB control systems and other I/O modules

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  Typical Application Areas

  • Digital signal acquisition and control in industrial automation production lines

  • Monitoring and actuator control in medium/low voltage switchgear

  • Automation systems in chemical, petrochemical, and metallurgical plants

  • Digital control in power generation and distribution systems

  • Driving relays, contactors, and other digital devices

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  Precautions

  • Power off before installation or maintenance

  • Ensure input/output signal types are compatible with devices

  • Maintain proper cooling and ventilation

  • Avoid exceeding rated voltage or current

  • Regularly check module operation and signal transmission

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The structure and details of the product：

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