QJ71EIP71 EtherNet/IP Module | Mitsubishi Electric MELSEC Q Series PLC Communication Interface

QJ71EIP71 EtherNet/IP

Mitsubishi QJ71EIP71 module

MELSEC-Q EIP71 module

QJ71EIP71

The Mitsubishi QJ71EIP71 EtherNet/IP module is a MELSEC-Q EIP71 series interface module enabling high-speed communication and seamless integration with EtherNet/IP-compatible devices in industrial automation systems.

Specification

SEODescription

The QJ71EIP71 EtherNet/IP module, part of Mitsubishi's MELSEC-Q series, is a versatile industrial communication module designed for seamless integration into EtherNet/IP networks. This Mitsubishi QJ71EIP71 module features a single Ethernet port (10/100BASE-TX) supporting up to 64 simultaneous connections, enabling direct communication with multiple PLCs, HMIs, and remote I/O devices. It operates within a 24 VDC voltage range (±10%) and functions reliably in temperatures from 0°C to 55°C. The MELSEC-Q EIP71 module excels in automotive, manufacturing, and process automation industries, offering real-time data exchange and device-level control through its CIP protocol implementation. Key advantages include high-speed communication (up to 100 Mbps), robust diagnostics, and compatibility with Rockwell Automation systems, though it requires specialized configuration tools and network expertise. Its compact design allows installation in base units alongside other Q-series modules, supporting flexible system expansion.

SEOSpecification

Parameter	Specification
Model Name	QJ71EIP71 EtherNet/IP
Manufacturer	Mitsubishi Electric
Series Compatibility	MELSEC-Q Series
Communication Protocol	EtherNet/IP (IEEE 802.3)
Interface	10BASE-T/100BASE-TX RJ45
Transmission Speed	10/100 Mbps (Auto-negotiation)
Maximum Connected Devices	64 EtherNet/IP nodes
Input Voltage	DC 5V ±5% (Internal power)
Power Consumption	0.45W (Typical)
Operating Temperature	0°C to 55°C
Storage Temperature	-25°C to 75°C
IP Rating	IP2X
Mounting	DIN rail or direct mounting
Certification	CE, UL, cUL

SEOQandA

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SEOQandA_Product

question:How to resolve QJ71EIP71 communication timeout with EtherNet/IP devices?
answer:Check network congestion, adjust scan time in parameters, and verify correct device IP configuration.
question:Why does QJ71EIP71 fail to establish EtherNet/IP connection?
answer:Confirm IP address settings, subnet mask, and gateway. Ensure physical cable and switch port are functional.
question:How to fix inconsistent data exchange via QJ71EIP71?
answer:Verify tag configuration alignment, check for duplicate IPs, and validate PLC program logic for data handling.
question:What causes QJ71EIP71 module's ERROR LED to stay lit?
answer:Inspect hardware connections, confirm parameter settings, and update firmware if incompatible with connected devices.
question:How to resolve QJ71EIP71 incompatibility with third-party EtherNet/IP devices?
answer:Install correct EDS files, ensure device conforms to EtherNet/IP standards, and adjust communication settings if needed.