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Mitsubishi RJ71EN71 Dual-Port Ethernet Communication Module

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Mitsubishi RJ71EN71

by Mitsubishi Electric

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OverviewThe Mitsubishi RJ71EN71 Dual-Port Ethernet Communication Module delivers robust, high-speed network connectivity engineered for the advanced MELSEC iQ-R Series programmable logic controllers (PLCs). This critical module streamlines data exchange and control within demanding industrial automation settings. Featuring a dual-port design, the RJ71EN71 accommodates diverse network topologies, boosting system flexibility and dependability. It supports industry-standard protocols, including CC-Link IE Field Network Basic, SLMP, SNTP, and MC Protocol, ensuring deterministic communication vital for contemporary manufacturing and process control. Ideal for integrating PLCs into broader enterprise systems, this module provides extensive diagnostics and configuration tools, simplifying system setup and maintenance for peak operational efficiency.Key Features Dual-Port Architecture: Boasts two RJ45 ports for flexible networking, supporting line and star topologies. Extensive Protocol Compatibility: Works with CC-Link IE Field Network Basic, SLMP (Seamless Message Protocol), MC Protocol, and SNTP (for precise time synchronization). High Connection Capacity: Supports up to 64 connections for SLMP and 16 for MC Protocol, meeting various communication requirements. Flexible IP Setup: Supports Static and DHCP IP address assignments for easy network integration. Enhanced Network Isolation: Features transformer-isolated Ethernet ports for superior noise immunity and reliability. Integrated Diagnostics: Includes a built-in web server for real-time status monitoring, configuration, and proactive issue resolution. Optimal Communication Speed: Delivers 10/100 Mbps (auto-negotiation) for efficient data transfer. Technical Specifications Model: RJ71EN71 Series: MELSEC iQ-R Power Input: 5V DC (supplied from the base unit) Current Draw: 0.38 A Dimensions (W × H × D): 27.8 × 106 × 110 mm Weight: Approximately 0.18 kg Operating Temperature: 0°C to 55°C Storage Temperature: -25°C to 75°C Certifications: CE, UL, cUL, UKCA, EAC Environmental Compliance: RoHS compliant ApplicationsThe Mitsubishi RJ71EN71 module is an essential component across diverse industrial applications requiring high-performance Ethernet communication: High-Speed Factory Automation: Facilitates rapid and dependable data exchange essential for synchronized manufacturing. Time-Synchronized Control Systems: Ensures accurate timing across distributed control systems via SNTP. PLC-to-PLC and PLC-to-HMI Communication: Enables seamless interaction between multiple PLCs and Human Machine Interfaces for cohesive control. Data Acquisition and SCADA Integration: Critical for collecting vital operational data and integrating with Supervisory Control and Data Acquisition systems. Remote Diagnostics and Monitoring: Supports off-site system health checks and performance monitoring, reducing downtime and maintenance costs. Why Choose?The Mitsubishi RJ71EN71 stands out as a superior choice for bolstering your industrial network infrastructure: Versatile Dual-Port Architecture: Offers unmatched flexibility in network design, supporting both redundant and daisy-chain configurations. Advanced Protocol Support: Guarantees compatibility with a broad range of industrial communication standards, future-proofing your automation investments. Robust Built-In Diagnostics: The integrated web server provides powerful tools for immediate status checks and efficient troubleshooting, minimizing operational interruptions. Effortless System Integration: Designed for seamless compatibility with MELSEC iQ-R Series PLCs, simplifying installation and setup. Secure and Scalable Network Solution: Built to meet the demands of modern industrial networks, providing a reliable, expandable foundation for automation needs. Order NowEnhance your MELSEC iQ-R Series PLC system with the Mitsubishi RJ71EN71 Dual-Port Ethernet Communication Module. Contact us today to secure this essential component for your industrial automation needs and experience improved connectivity and efficiency.FAQWhat types of network topologies does the RJ71EN71 support?The RJ71EN71 supports versatile network topologies including line and star configurations thanks to its dual-port design.Which communication protocols are supported by this module?This module supports CC-Link IE Field Network Basic, SLMP (Seamless Message Protocol), MC Protocol, and SNTP for precise time synchronization.Can the RJ71EN71 assist with remote monitoring?Yes, the integrated diagnostics feature, including a built-in web server, supports remote diagnostics and monitoring of system health and performance.Is this module compatible with other Mitsubishi PLC series?The RJ71EN71 is specifically engineered for seamless compatibility with the Mitsubishi MELSEC iQ-R Series PLCs.What are the power requirements for the RJ71EN71?The module operates on 5V DC power, which is supplied directly from the base unit of the MELSEC iQ-R Series PLC.

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PRODUCT DETAILS

Mitsubishi RJ71EN71

Overview

This is a genuine Mitsubishi Electric component from the MELSEC PLCs family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Mitsubishi Electric catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Mitsubishi Electric automation ecosystem
  • Engineered to integrate inside MELSEC PLCs installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes for the MELSEC PLCs family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: RJ71EN71
  • Series: MELSEC iQ-R
  • Power Input: 5V DC (supplied from the base unit)
  • Current Draw: 0.38 A
  • Dimensions (W × H × D): 27.8 × 106 × 110 mm
  • Weight: Approximately 0.18 kg
  • Operating Temperature: 0°C to 55°C
  • Storage Temperature: -25°C to 75°C
  • Certifications: CE, UL, cUL, UKCA, EAC
  • Environmental Compliance: RoHS compliant

Applications

The Mitsubishi RJ71EN71 module is an essential component across diverse industrial applications requiring high-performance Ethernet communication:

  • High-Speed Factory Automation: Facilitates rapid and dependable data exchange essential for synchronized manufacturing.
  • Time-Synchronized Control Systems: Ensures accurate timing across distributed control systems via SNTP.
  • PLC-to-PLC and PLC-to-HMI Communication: Enables seamless interaction between multiple PLCs and Human Machine Interfaces for cohesive control.
  • Data Acquisition and SCADA Integration: Critical for collecting vital operational data and integrating with Supervisory Control and Data Acquisition systems.
  • Remote Diagnostics and Monitoring: Supports off-site system health checks and performance monitoring, reducing downtime and maintenance costs.

Why Choose the RJ71EN71?

The Mitsubishi RJ71EN71 stands out as a superior choice for bolstering your industrial network infrastructure:

  • Versatile Dual-Port Architecture: Offers unmatched flexibility in network design, supporting both redundant and daisy-chain configurations.
  • Advanced Protocol Support: Guarantees compatibility with a broad range of industrial communication standards, future-proofing your automation investments.
  • Robust Built-In Diagnostics: The integrated web server provides powerful tools for immediate status checks and efficient troubleshooting, minimizing operational interruptions.
  • Effortless System Integration: Designed for seamless compatibility with MELSEC iQ-R Series PLCs, simplifying installation and setup.
  • Secure and Scalable Network Solution: Built to meet the demands of modern industrial networks, providing a reliable, expandable foundation for automation needs.

Availability & Shipping

  • In stock: RJ71EN71 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every RJ71EN71 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Mitsubishi Electric

The RJ71EN71 supports versatile network topologies including line and star configurations thanks to its dual-port design.

Machine down? We ship parts the same day.

New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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