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Home Product FX-3U-485BD (Rep) Mitsubishi MELSEC FX3U RS-485 Communication Module, PLC Interface Board
FX-3U-485BD (Rep)

FX-3U-485BD (Rep) Mitsubishi MELSEC FX3U RS-485 Communication Module, PLC Interface Board

FX3U-485BD module
FX3U RS485 communication
FX3U-485BD replacement part
FX-3U-485BD (Rep)
FX3U-485BD module is a Mitsubishi FX3U series RS485 communication board supporting data exchange and parameter configuration. This FX3U-485BD replacement part enables reliable FX3U RS485 communication integration, directly connecting to PLC units for industrial network compatibility. Designed as OEM-standard component for seamless system upgrades or repairs.
Categories:Automation
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Product Description

The FX3U-485BD module is a compact RS485 communication interface designed as a direct replacement part for Mitsubishi FX3U series PLCs, enabling seamless integration with RS485-enabled devices. This plug-in board supports FX3U RS485 communication protocols, including Modbus RTU, and operates within a voltage range of 5-24V DC. It does not feature standalone I/O points but interfaces directly with the PLC’s main unit, allowing connection to up to 1 expansion module. With an operational temperature range of 0-55°C, it is suited for industrial automation, manufacturing, and process control applications. Its robust design ensures reliable data transmission over long distances (up to 1200 meters), while its compact size (32mm x 45mm) simplifies installation. Notable advantages include easy configuration and compatibility with existing FX3U systems, though it lacks built-in isolation and requires precise wiring. The module has no integrated battery or display, focusing solely on communication enhancement.
Parameter Specification
Compatible Series Mitsubishi FX3U series PLCs (used as FX3U-485BD replacement part)
Purpose FX3U RS485 communication expansion module
Communication Interface RS-485 compliant (isolated)
Supported Protocols Mitsubishi dedicated protocol, Modbus RTU (via FX3U RS485 communication configuration)
Baud Rate Range 1,200 - 115,200 bps
Transmission Distance 500 meters maximum (using proper shielded cable)
Mounting Method Direct installation on FX3U main unit (FX3U-485BD module form factor)
Power Supply 5VDC from PLC main unit
Insulation Photo-isolation between PLC and communication line
Operating Temperature -25°C to +75°C
Certifications CE, UL, RoHS compliant
question:Can I apply for low-value declaration for shipments?
answer:Yes, for eligible orders under the specified threshold. Please check with our team for details.
question:Do you accept payment after delivery?
answer:Payment terms can be negotiated based on credit evaluation. Initial orders may require prepayment.
question:Do you offer technical selection services?
answer:Yes, our experts provide guidance on product specifications and compatibility upon request.
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 apply for low-value declaration for shipments?
answer:Yes, for eligible orders under the specified threshold. Please check with our team for details.
question:Do you accept payment after delivery?
answer:Payment terms can be negotiated based on credit evaluation. Initial orders may require prepayment.
question:Do you offer technical selection services?
answer:Yes, our experts provide guidance on product specifications and compatibility upon request.
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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