FX3U-FLROM-64 Flash ROM Memory Cassette for Mitsubishi MELSEC FX3U PLC Expansion Module

FX3U-FLROM-64

Mitsubishi FX3U-FLROM

FLROM-64 PLC Module

FX3U-FLROM-64

Mitsubishi FX3U-FLROM-64 is a 64K flash memory module for FX3U PLCs, enabling reliable program/data storage and system expansion. The FLROM-64 PLC Module supports firmware updates and backup operations.

Specification

SEODescription

The Mitsubishi FX3U-FLROM-64 is a compact FLROM-64 PLC Module designed for the FX3U series, offering 64KB of flash ROM for program and data storage in industrial automation. While the module itself does not include direct I/O points, it seamlessly integrates with the FX3U main unit, which supports up to 256 I/O points and connects to multiple expansion modules for scalable control. It features built-in RS-422/485 and USB communication interfaces, enabling flexible connectivity with HMIs, sensors, and other devices. Operating within 24V DC ±10% and a temperature range of 0–55°C, it suits harsh environments in manufacturing, machinery, and process control. Key advantages include reliable data retention, easy firmware updates, and compatibility with Mitsubishi’s GX Works2 programming software. However, its dependency on the FX3U CPU and limited standalone functionality may require careful system planning.

SEOSpecification

Parameter	Specification
Model Name	FX3U-FLROM-64
Compatibility	Mitsubishi FX3U-FLROM Series PLC
Memory Type	Flash ROM
Memory Capacity	64KB (Expandable)
Communication Interface	RS-422/485
Power Supply	5V DC ±5% (PLC Bus Powered)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C to 70°C
Dimensions	34mm(W) × 90mm(H) × 86mm(D)
Certification	CE, UL, cUL

SEOQandA

question:Why can other suppliers find discontinued models you can't offer?
answer:Other suppliers may use refurbished or non-original parts, which we avoid to ensure quality and reliability.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, etc., and choose the best option based on your needs.
question:Can shipments apply for low-value declaration?
answer:Yes, but it must comply with local regulations; customers may need to provide required documents.

SEOQandA_Product

question:How to properly install FX3U-FLROM-64 on FX3U PLC?
answer:Ensure the module is securely connected to the PLC's expansion port, power off during installation, and verify compatibility in the hardware manual.
question:FX3U-FLROM-64 not recognized by programming software?
answer:Check communication cables, restart PLC, confirm software supports the module, and update GX Works2 to the latest version.
question:Data corruption occurs in FX3U-FLROM-64?
answer:Avoid power interruptions during write operations, use battery backup, and perform periodic memory checks via diagnostics.
question:Maximum data storage capacity of FX3U-FLROM-64?
answer:Supports up to 64KB storage. Optimize data usage and delete unused programs/files if exceeding capacity limits.
question:FX3U-FLROM-64 write cycle limit reached?
answer:Replace the module once write cycles exceed 100,000 times. Minimize frequent writes by using RAM for temporary data.