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AEG AS-B872-200 Modicon 8-Channel Analog Input Module

  • Product Introduction: This is an 8-channel analog input module for AEG Modicon 800 series PLC systems, specifically designed to accurately collect and convert analog signals from industrial sensors (such as temperature, pressure, flow, and level sensors) into digital data for processing by the PLC CPU. It features 16-bit high-resolution conversion, channel isolation, and advanced noise reduction capabilities, ensuring precise and reliable acquisition of analog process parameters in harsh industrial environments.
  • Technical Specifications:
    • Input Channels: 8 independent channels, each configurable for 4-20 mA DC current input.
    • Resolution: 16-bit, providing 65536 discrete values for precise signal measurement.
    • Input Range: 4-20 mA DC, input impedance 250 Ω per channel.
    • Accuracy: ±0.05% of full scale (FS) at 25°C, ±0.1% FS over -25°C to +70°C.

Detailed content

    • Isolation: 2500 VAC between channels and backplane, 1500 VAC between individual channels.
    • Common Mode Rejection Ratio (CMRR): ≥120 dB; Normal Mode Rejection Ratio (NMRR): ≥80 dB.
    • Power Supply: 24 VDC from PLC backplane, power consumption ≤3 W.
    • Operating Temperature: -25°C to +70°C; Storage Temperature: -40°C to +85°C; Protection Rating: IP20.
    • Dimensions: 80mm × 160mm × 50mm (W×H×D); Mounting: 35mm DIN rail (Modicon 800 series chassis slot).
    • LED Indicators: Power (green), channel status (yellow per channel), fault (red).
  • Functional Features:
    • 8 independent channels with 16-bit resolution ensure accurate and reliable collection of multiple analog process parameters, meeting the requirements of complex industrial control systems.
    • High CMRR and NMRR effectively eliminate industrial noise and interference, ensuring signal integrity even in environments with strong electromagnetic interference.
    • Channel-to-channel and channel-to-backplane isolation prevents ground loops and fault propagation, enhancing system stability and safety.
    • 24 VDC backplane power supply eliminates the need for additional wiring, simplifying system installation and reducing costs.
    • LED indicators for each channel allow for quick visual identification of signal status and fault conditions, facilitating on-site maintenance.
    • Compatible with Modicon 800 series PLCs, supporting plug-and-play integration and seamless communication with the PLC CPU.
    • Wide operating temperature range ensures reliable performance in extreme industrial environments, from cold storage facilities to high-temperature manufacturing plants.
  • Application Scenarios: Widely used in industrial process control systems such as chemical plants, oil refineries, water treatment facilities, and food and beverage production lines. It is ideal for collecting analog signals from sensors measuring temperature, pressure, flow rate, and liquid level, enabling the PLC to monitor and control critical process parameters for optimal production efficiency and product quality.

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