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Home Product QD81MEM-4GBC Memory Module 4GB for MELSEC PLC Expansion Storage
MELSEC iQ-Q

QD81MEM-4GBC Memory Module 4GB for MELSEC PLC Expansion Storage

QD81MEM-4GBC module
Mitsubishi Melsec memory
Q Series 4GBC storage
QD81MEM-4GBC
QD81MEM-4GBC module for Mitsubishi Melsec Q Series PLCs, delivering 4GBC storage capacity with robust data retention and high-speed memory expansion capabilities in industrial automation systems.
Categories:Automation
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Product Description

The QD81MEM-4GBC module is a Mitsubishi Melsec memory card designed for the Q Series PLC platform, providing 4GBC storage capacity for industrial automation systems. This non-volatile memory module supports seamless data backup and program storage, ensuring reliable operation in harsh environments with an operating voltage range of 24VDC ±10% and a temperature tolerance of -10°C to 55°C. Compatible with Q Series CPUs, it enables direct integration with up to 4 expansion modules via the system bus while supporting industrial communication protocols like Ethernet and serial interfaces. Ideal for manufacturing, process control, and machinery automation, its key advantages include high-speed data access, robust error correction, and long-term data retention. A built-in lithium battery ensures memory backup during power interruptions. However, it requires specialized configuration tools for initialization and lacks native wireless connectivity. The compact design suits space-constrained control panels without physical displays or external sensors.
Parameter Specification
Model QD81MEM-4GBC
Module Type Mitsubishi Melsec Memory Module
Compatible Series Q Series PLC
Storage Capacity 4GBC (CompactFlash Card)
Data Retention Non-volatile Flash Memory
Interface USB 2.0
Power Supply 5V DC ±5% (via PLC base unit)
Operating Temperature -25°C to 75°C
Storage Temperature -40°C to 85°C
Dimensions 27.4mm x 98mm x 59mm
Weight 100g max
Certification CE, UL, FCC
Firmware Update Via GX Works2
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question:What is the warranty?
answer:Our standard warranty covers 1 year for material and workmanship defects. Specific terms vary by product.
question:Do you accept payment after delivery?
answer:We typically require advance payment or LC. Exceptions may apply for trusted clients after evaluation.
question:What is the delivery time?
answer:Delivery times range from 2-4 weeks for standard orders. Custom products may require additional lead time.
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:What is the warranty?
answer:Our standard warranty covers 1 year for material and workmanship defects. Specific terms vary by product.
question:Do you accept payment after delivery?
answer:We typically require advance payment or LC. Exceptions may apply for trusted clients after evaluation.
question:What is the delivery time?
answer:Delivery times range from 2-4 weeks for standard orders. Custom products may require additional lead time.
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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