Mitsubishi Electric QJ71E71-100 MELSEC-Q Series Ethernet Module

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Manufacturer: Mitsubishi Electric
Product No.: QJ71E71-100
Country of origin:United States
Product Type: Ethernet Modules
Payment: T/T, Western Union
Weight: 110g
Dimensions: 27.4 mm x 98 mm x 90 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Facilitating seamless industrial network communications, the QJ71E71-100 serves as a high-performance Ethernet interface module for the Mitsubishi Electric MELSEC-Q Series PLC platform. This module enables direct, reliable connections between Q-Series programmable controllers and host systems, supervisory personal computers, or other Ethernet-enabled automation devices. Operating at speeds up to 100 Mbps, it supports simultaneous open connections and robust, secure data transmission across complex manufacturing cells and plant-wide industrial networks. By offloading processing overhead from the main CPU, it ensures optimized system-level performance.

Features

Dual-rate transmission support accommodating 10BASE-T and 100BASE-TX interfaces.
Supports up to 16 simultaneously open connections for parallel host and peer-to-peer communications.
Compact single-slot footprint designed for seamless integration within standard MELSEC-Q backplanes.
Direct configuration and parametric setup utilizing standard GX Works2 or GX Developer programming software.
Front-panel diagnostic LEDs providing immediate physical feedback on link, run, and communication error status.

Applications

Industrial supervisory control and data acquisition (SCADA) network integration.
High-speed peer-to-peer inter-PLC data exchange.
Centralized database connectivity and remote machine telemetry monitoring.
Manufacturing execution systems (MES) and enterprise resource planning (ERP) system integration.

Technical Specifications

Manufacturer	Mitsubishi Electric
Part Number / Model	QJ71E71-100
Series	MELSEC-Q Series
Product Type	Ethernet Interface Module
Data Transmission Rate	100 Mbps / 10 Mbps
Transmission Method	Baseband
Maximum Segment Length	100 m (between hub and node)
Maximum Nodes per Connection	Cascade connection: Maximum 2 (for 100BASE-TX)
Simultaneous Open Connections	16
Number of Occupied I/O Points	32 points (I/O assignment: Intelligent function module)
Internal Current Consumption (5V DC)	0.50 A
Dimensions (W x H x D)	27.4 mm x 98 mm x 90 mm
Weight	0.11 kg

Installation Guidelines

Always isolate the main power supply to the MELSEC-Q base unit before mounting or removing the communication module to prevent module damage or electric shock.
Ensure the module is securely seated in the base unit slot and the module fixing screw is tightened to the recommended torque specification.
Utilize shielded twisted pair (STP) cabling rated Category 5 or higher for 100BASE-TX configurations to maximize noise immunity.
Route communication cables physically isolated from high-voltage power lines and motor drive wiring to minimize electromagnetic interference (EMI).

Key Features:

#Ethernet Modules #MELSEC-Q Series

What is the maximum data transmission rate of the QJ71E71-100?

The QJ71E71-100 Ethernet module supports standard dual-speed communication rates of 100 Mbps (100BASE-TX) and 10 Mbps (10BASE-T).

How many simultaneous connections can the QJ71E71-100 handle?

The module allows up to 16 simultaneously open connections for concurrent communication with host PCs, SCADA systems, or other PLCs.

How many slots does this module occupy on the MELSEC-Q base unit?

The QJ71E71-100 is a single-slot module that occupies 32 I/O points designated as an intelligent function module.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

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Mitsubishi Electric QJ71E71-100 MELSEC-Q Series Ethernet Module