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Home Product QJ71C24N Mitsubishi MELSEC-Q Series RS-232/422/485 Serial Communication Module for PLC Data Transfer
QJ71C24N

QJ71C24N Mitsubishi MELSEC-Q Series RS-232/422/485 Serial Communication Module for PLC Data Transfer

Mitsubishi QJ71C24N module
QJ71C24N serial interface
C24N communication module
QJ71C24N
The Mitsubishi QJ71C24N module is a C24N communication module featuring a serial interface for RS-232/RS-422/485 connectivity, enabling industrial automation devices to exchange data reliably with PLC systems via high-speed serial protocols.
Categories:Automation
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Product Description

The Mitsubishi QJ71C24N module is a compact serial interface communication module designed for integration into Q Series PLC systems. This C24N communication module provides dual-channel RS-232/RS-422/485 connectivity, enabling simultaneous data exchange with up to 32 external devices. Operating at 24VDC ±10% within an industrial temperature range of 0°C to 55°C, it supports multiple protocols including MELSEC, non-procedural, and bidirectional communication. Ideal for factory automation, process control, and SCADA applications, the QJ71C24N serial interface module offers error detection, baud rates up to 115.2 kbps, and seamless PLC integration via a dedicated 64-pin connector. While praised for its protocol flexibility and diagnostic LEDs, its configuration requires specialized software tools. The module focuses purely on communication functions without integrated I/O, displays, or power storage components.
Parameter Specification
Serial Interface Type RS-232/RS-422/RS-485 (QJ71C24N serial interface)
Communication Protocol MC protocol, MODBUS RTU (C24N communication module)
Transmission Speed 115.2 kbps (RS-232), 10 Mbps (RS-422/485)
Electrical Standards EIA RS-232C, EIA RS-422A, EIA RS-485
Connector Type D-Sub 25-pin (Mitsubishi QJ71C24N module)
Isolation Method Photocoupler isolation
Supported Frame Formats Fixed-length/Variable-length
Maximum Station Number 32 (RS-485 multi-drop)
Data Bit Settings 7 or 8 bits
Parity Check Even/Odd/None
Stop Bit 1 or 2 bits
Communication Modes Point-to-point, Multi-drop, Bidirectional
Supported Instructions Dedicated instructions for C24N communication module
Buffer Memory 2 KB (Receive/Send buffer)
Mounting Position MELSEC-Q series base unit slot
Power Requirements 5 V DC ±5% (via base unit)
Operating Temperature 0°C to 55°C
Storage Temperature -25°C to 75°C
Protection Class IP2X (IEC 60529)
Certification CE, UL, cUL
Weight Approx. 0.3 kg
Compatibility GX Works2, GX Developer (Mitsubishi QJ71C24N module)
question:Can I book official courier pickup myself?
answer:Yes, please contact our support team to arrange authorization for self-pickup.
question:What shipping methods do you offer?
answer:We support DHL, FedEx, UPS, and other major carriers. Options vary by destination and urgency.
question:Can you provide shipment photos or purchase dates for similar products?
answer:Yes, upon request, we provide verified product photos and relevant documentation.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can I book official courier pickup myself?
answer:Yes, please contact our support team to arrange authorization for self-pickup.
question:What shipping methods do you offer?
answer:We support DHL, FedEx, UPS, and other major carriers. Options vary by destination and urgency.
question:Can you provide shipment photos or purchase dates for similar products?
answer:Yes, upon request, we provide verified product photos and relevant documentation.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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