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Mitsubishi QJ71NT11B Ethernet Communication Module for MELSEC-Q PLCs

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Mitsubishi QJ71NT11B

by Mitsubishi Electric

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OverviewThe Mitsubishi QJ71NT11B is an advanced Ethernet communication module, expertly engineered to integrate effortlessly with MELSEC-Q series Programmable Logic Controllers (PLCs). This module is crucial for contemporary industrial settings, delivering a dependable and swift 10/100 Mbps network connection. It supports efficient data exchange, essential remote diagnostics, and streamlined integration within sophisticated automation frameworks, boosting overall operational effectiveness and oversight.Key Features High-Speed Connectivity: Features a 10/100 Mbps Ethernet interface for accelerated data transmission. Extensive Protocol Support: Compatible with key industrial protocols, including Modbus TCP/IP, UDP, and Mitsubishi's proprietary QJ protocol. Simplified Networking: Includes a standard RJ45 port for straightforward and secure network connections. Live Monitoring: Provides real-time data transfer and remote surveillance capabilities, offering immediate insights into system operation. Space-Saving Design: Presented in a compact Q-series module format, optimizing control panel space. Programming Integration: Fully supported by the GX Works3 programming environment, ensuring easy setup and configuration. Technical Specifications Mitsubishi Part Number: QJ71NT11B Interface Type: 10Base-T/100Base-TX Ethernet Connector Type: Standard RJ45 Supported Protocols: Modbus TCP/IP, UDP, QJ proprietary protocol Maximum Data Rate: Up to 100 Mbps Installation: Designed for integration into a Q-series PLC rack slot Operating Temperature Range: Functions effectively from 0 °C to +55 °C Power Source: Power is supplied directly from the PLC rack. ApplicationsThe Mitsubishi QJ71NT11B is perfectly suited for a broad range of demanding industrial applications, including: Thorough integration of MELSEC-Q PLCs within extensive factory networks. Enabling remote control and advanced diagnostic functions over secure Ethernet links. Facilitating seamless communication with SCADA and Human Machine Interface (HMI) systems. Establishing centralized data logging and sophisticated monitoring systems for improved operational visibility. Ensuring high-speed data transfer critical for intricate and time-sensitive automation networks. Why Choose This Model?The Mitsubishi QJ71NT11B stands out as a superior selection for enhancing your industrial automation infrastructure. It offers unmatched robust and rapid Ethernet connectivity for your PLCs, ensuring your systems are consistently connected and responsive. With support for key industrial communication protocols, it simplifies complex remote access and system integration challenges. Its compact form factor guarantees easy installation within existing MELSEC-Q racks, minimizing downtime and maximizing efficiency. Furthermore, selecting the QJ71NT11B means leveraging the renowned reliability and innovation backed by Mitsubishi’s extensive support and advanced software tools, guaranteeing sustained performance and confidence.Order NowElevate the capabilities of your PLC network with the Mitsubishi QJ71NT11B Ethernet Communication Module. Experience fast, reliable, and industrial-grade Ethernet connectivity specifically engineered for the demands of modern automation systems. Enhance your operational efficiency and connectivity today. Explore our comprehensive Mitsubishi MELSEC-Q Series collection for additional compatible options, or discover our full range of Mitsubishi MELSEC Programmable Controllers (PLC) to find scalable automation solutions tailored to your unique requirements, from established legacy MELSEC systems to next-generation PLCs designed for peak performance, unparalleled connectivity, and ultimate flexibility.FAQWhat is the primary function of the Mitsubishi QJ71NT11B?The Mitsubishi QJ71NT11B is an Ethernet communication module designed to provide high-speed network connectivity and data exchange for MELSEC-Q series PLCs.What data transfer rate does the QJ71NT11B support?This module supports a data transfer rate of up to 100 Mbps, ensuring fast and efficient communication within industrial environments.Which industrial protocols are compatible with the QJ71NT11B?The QJ71NT11B is compatible with essential industrial protocols, including Modbus TCP/IP, UDP, and Mitsubishi's proprietary QJ protocol.Can the QJ71NT11B be used for remote monitoring?Yes, it enables real-time data transfer and remote monitoring capabilities, providing valuable insights into system performance from a distance.Is the QJ71NT11B easy to integrate with existing PLC systems?Its compact design and compatibility with the GX Works3 programming environment ensure straightforward installation and configuration within existing MELSEC-Q series PLC racks.

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PRODUCT DETAILS

Mitsubishi QJ71NT11B

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

  • Mitsubishi Part Number: QJ71NT11B
  • Interface Type: 10Base-T/100Base-TX Ethernet
  • Connector Type: Standard RJ45
  • Supported Protocols: Modbus TCP/IP, UDP, QJ proprietary protocol
  • Maximum Data Rate: Up to 100 Mbps
  • Installation: Designed for integration into a Q-series PLC rack slot
  • Operating Temperature Range: Functions effectively from 0 °C to +55 °C
  • Power Source: Power is supplied directly from the PLC rack.

Applications

The Mitsubishi QJ71NT11B is perfectly suited for a broad range of demanding industrial applications, including:

  • Thorough integration of MELSEC-Q PLCs within extensive factory networks.
  • Enabling remote control and advanced diagnostic functions over secure Ethernet links.
  • Facilitating seamless communication with SCADA and Human Machine Interface (HMI) systems.
  • Establishing centralized data logging and sophisticated monitoring systems for improved operational visibility.
  • Ensuring high-speed data transfer critical for intricate and time-sensitive automation networks.

Why Choose the QJ71NT11B?

The Mitsubishi QJ71NT11B stands out as a superior selection for enhancing your industrial automation infrastructure. It offers unmatched robust and rapid Ethernet connectivity for your PLCs, ensuring your systems are consistently connected and responsive. With support for key industrial communication protocols, it simplifies complex remote access and system integration challenges. Its compact form factor guarantees easy installation within existing MELSEC-Q racks, minimizing downtime and maximizing efficiency. Furthermore, selecting the QJ71NT11B means leveraging the renowned reliability and innovation backed by Mitsubishi’s extensive support and advanced software tools, guaranteeing sustained performance and confidence.

Availability & Shipping

  • In stock: QJ71NT11B 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 QJ71NT11B ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Mitsubishi Electric

The Mitsubishi QJ71NT11B is an Ethernet communication module designed to provide high-speed network connectivity and data exchange for MELSEC-Q series PLCs.

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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Independent Supplier Notice

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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