LJ71E71-100 MELSEC Q Series Digital Input Module - Mitsubishi Electric PLC Controller

LJ71E71-100

Mitsubishi PLC module

LJ71E71-100 communication module

LJ71E71-100

The LJ71E71-100 Mitsubishi PLC communication module enables industrial automation systems with multi-protocol support, ensuring reliable connectivity for factory networks and control systems while delivering efficient data exchange.

Specification

SEODescription

The LJ71E71-100 is a Mitsubishi PLC module designed as a high-performance communication module for industrial automation systems. It features 32 digital inputs and 32 digital outputs, enabling seamless integration with up to 64 directly connected modules via CC-Link IE Field Basic network. Supporting 100BASE-TX Ethernet communication, it operates within a voltage range of 24V DC ±10% and functions reliably in temperatures from -25°C to 75°C. Ideal for manufacturing, robotics, and process control industries, the LJ71E71-100 excels in real-time data exchange and system scalability. Key advantages include fast response times (

SEOSpecification

Parameter	Specification
Model Number	LJ71E71-100
Manufacturer	Mitsubishi Electric
Module Type	LJ71E71-100 Communication Module
Communication Interface	Ethernet (10BASE-T/100BASE-TX)
Protocol Support	MELSEC Communication Protocol, TCP/IP
Transmission Rate	10/100 Mbps Auto-negotiation
Power Supply	DC 5V ±5% (Internal bus power)
Operating Temperature	0°C to 55°C
Dimensions	27.4mm(W) x 98mm(H) x 60mm(D)
Weight	Approx. 0.15kg
Certification	CE, UL, FCC
Mounting Method	DIN rail mount
Compatibility	Mitsubishi PLC MELSEC-L Series

SEOQandA

question:Why are shipping costs so high? Are there cheaper options available?
answer:Shipping costs depend on weight/destination. We offer economical options like sea/air freight with longer transit times.
question:Why can other suppliers source discontinued models you can't offer?
answer:Suppliers may have leftover stock or alternatives. We focus on current models to ensure quality and reliability.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and others. Contact us for the best solution based on your needs and region.

SEOQandA_Product

question:LJ71E71-100 module fails to connect to the network.
answer:Verify SIM card validity, check antenna connection, confirm APN settings, and ensure adequate signal strength in the area.
question:LJ71E71-100 does not respond to AT commands.
answer:Check serial port baud rate compatibility, ensure proper hardware flow control settings, and validate command syntax with CR/LF terminators.
question:Intermittent data transmission with LJ71E71-100.
answer:Test power supply stability, relocate device to avoid EMI sources, and monitor network signal quality using RSSI indicators.
question:LJ71E71-100 firmware update fails.
answer:Use manufacturer-provided firmware tools, ensure uninterrupted power during update, and verify checksum of firmware file before flashing.
question:LJ71E71-100 overheats during operation.
answer:Confirm power input within 4.75-5.25V range, improve ventilation, and reduce transmission duty cycle if exceeding thermal specifications.