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Mitsubishi PLC Ethernet Interface Unit LJ71E71-100-CM

The Mitsubishi PLC Ethernet Interface Unit LJ71E71-100-CM is an advanced communication module designed to provide reliable and high-speed Ethernet connectivity for Mitsubishi MELSEC L series PLCs. With the LJ71E71-100-CM, seamless data exchange across industrial networks is achieved, making the LJ71E71-100-CM an essential component for modern automation systems requiring robust and flexible networking capabilities.

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Product Description

Mitsubishi PLC Ethernet Interface Unit LJ71E71-100-CM

 

Product Overview:

 

The Mitsubishi PLC Ethernet Interface Unit LJ71E71-100-CM is a highly efficient communication module that provides seamless Ethernet connectivity for Mitsubishi MELSEC series PLCs. Designed to support fast and reliable data transfer, the LJ71E71-100-CM enhances system integration across various industrial automation environments. This module is essential for applications requiring high-speed communication and robust performance, making it a popular choice for industries that demand top-tier networking solutions.

 

Mitsubishi PLC Ethernet Interface Unit LJ71E71-100-CM

 

Key Features:

 

  • High-Speed Ethernet Communication: The LJ71E71-100-CM supports 100BASE-TX (100 Mbps) and 10BASE-T (10 Mbps) transmission speeds, allowing efficient and stable data flow between PLCs and other Ethernet-enabled devices.
  • Versatile Protocol Compatibility: This unit works with TCP/IP, UDP, and MELSOFT protocols, providing a flexible solution for connecting Mitsubishi PLCs to SCADA systems, HMIs, and other industrial devices.
  • Flow Control: The LJ71E71-100-CM employs IEEE802.3 for full-duplex transmission and backpressure congestion control for half-duplex, ensuring smooth data transmission even under heavy network loads.
  • Auto MDI/MDI-X Support: The LJ71E71-100-CM automatically detects whether a crossover or straight-through cable is used, simplifying setup and reducing installation time.
  • Email Functionality: The unit can send email alerts with attachments of up to 960 words, enabling real-time monitoring and remote communication.
  • Durable and Compact Design: The LJ71E71-100-CM is designed for easy installation with its compact size and lightweight structure, making it an ideal choice for tight spaces in industrial settings.

 

Technical Specifications:

 

  • Data Transmission Speed:
     
    • 100BASE-TX: 100 Mbps
    • 10BASE-T: 10 Mbps

  • Communication Mode:

    • 100BASE-TX: Full Duplex / Half Duplex
    • 10BASE-T: Half Duplex

  • Interface: RJ45 (Auto MDI/MDI-X)
  • Maximum Segment Length: 100 meters (between hub and node)
  • Send/Receive Data Storage Memory:

    • Fixed Buffer: 1K words × 16
    • Random Access Buffer: 6K words × 1

  • Power Consumption: DC5V, 0.60 A internal current consumption
  • Physical Dimensions:

    • Height: 90 mm
    • Width: 28.5 mm
    • Depth: 95 mm
    • Weight: 0.18 kg

 

Applications:

 

The LJ71E71-100-CM is perfect for factory automation, process control, and data acquisition systems. It enables reliable, high-speed communication across industrial networks, ensuring that devices remain well-integrated into the overall control system. Thanks to its advanced capabilities, the LJ71E71-100-CM is essential for industries that rely on Mitsubishi PLC systems, offering improved operational control and efficiency.