FX5-485-BD Mitsubishi Electric MELSEC FX5 PLC RS-485 Communication Module

Mitsubishi FX5-485-BD module

FX5-485-BD RS485 interface

FX5-485-BD PLC expansion

FX5-485-BD

The Mitsubishi FX5-485-BD module is a PLC expansion unit featuring an RS485 interface for reliable industrial communication, enabling data exchange and device connectivity in automation systems.

Specification

SEODescription

The Mitsubishi FX5-485-BD module is a compact PLC expansion unit designed to enhance communication capabilities in industrial automation systems. It integrates an FX5-485-BD RS485 interface, enabling reliable serial communication with devices like sensors, drives, and other PLCs over distances up to 1,200 meters. As a plug-in expansion for FX5-series PLCs, it requires no external power and supports protocols such as Modbus RTU and dedicated MELSEC protocols with baud rates up to 115.2 kbps. The module operates within a 24 VDC power range and withstands industrial temperatures (0–55°C), making it suitable for manufacturing, energy, and process control applications. Its key advantages include seamless integration, real-time data exchange, and cost-effective connectivity. However, configuration complexity and potential signal interference in high-noise environments are notable considerations. The FX5-485-BD simplifies distributed control systems while maintaining compatibility with existing RS485 networks.

SEOSpecification

Parameter	Specification
Product Model	Mitsubishi FX5-485-BD module
Interface Type	FX5-485-BD RS485 interface (isolated)
Application	FX5-485-BD PLC expansion for communication networks
Protocol Support	Modbus RTU, SLMP, CC-Link IE Field Basic
Transmission Speed	115.2 kbps (max)
Connection Capacity	Up to 32 nodes (RS485)
Communication Distance	500 m (max with RS485)
Power Consumption	0.12 W (5V DC from PLC)
Isolation	Photocoupler isolation (2500 Vrms)
Mounting	Direct attachment to FX5 CPU module
Operating Temperature	-20°C to 60°C
Certifications	CE, RoHS, UL

SEOQandA

question:How do you handle shipping?
answer:We support DHL, Fedex, UPS, and other major shipping methods.
question:Does your company provide technical selection services?
answer:Yes, we offer technical selection support for product customization.
question:How can I make payments to your company?
answer:We accept TT, Paypal, and other mainstream payment methods.

SEOQandA_Product

question:How to resolve communication failure with FX5-485-BD?
answer:Verify station number, baud rate, and data format settings match connected devices. Check wiring for proper termination and polarity.
question:Why is the FX5-485-BD not detected by the PLC?
answer:Ensure the module is securely installed in the base unit. Confirm compatibility with the PLC model and check power supply.
question:How to fix unstable RS-485 communication signals?
answer:Use shielded twisted-pair cables, reduce cable length (
question:What causes 'Timeout Error' during data transmission?
answer:Adjust communication timeout settings in the PLC program. Check device response times and wiring integrity.
question:How to troubleshoot incorrect data received via FX5-485-BD?
answer:Confirm parity, stop bit, and data bit configurations. Test with loopback to isolate hardware/software issues.