What PLCs is this module compatible with?
It is designed for Mitsubishi MELSEC-F FX3U PLCs
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Mitsubishi
FX3U-485-BD
RS-485 Communications Expansion Board, FX3U Series, DIN Rail
Mitsubishi
From $87In stock
Product Description
This RS-485 communications expansion board is designed for Mitsubishi MELSEC-F FX3U programmable logic controllers. It provides a dedicated RS-485 interface to enable multi-drop serial networks, remote HMI connections, and integration with legacy devices and instrumentation. The module mounts on DIN rail and installs as a compact board-level expansion for FX3U CPUs, minimizing panel footprint while adding reliable differential signaling suitable for noisy industrial environments. It is compliant with major marine and industrial approvals and EMC standards, supporting deployment in regulated applications. The unit is equivalent to the FX3U485BD designation and is intended for use specifically with FX3U platforms. Package contents typically include the expansion board; cabling and terminators are application-specific and not included. Use this module to extend serial communication capability where RS-485 is required for robust, long-distance data transmission within an FX3U-based control system.
Key Features
- •RS-485 interface for FX3U PLCs
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $115
Availability: 26 in stock
Lead time: ~2 day lead
Never Used
Price: RFQ
Availability: Sourced on request
Lead time: Quoted after RFQ
Used
Price: $87
Availability: 1 in stock
Lead time: ~9 day lead
FNFP
Price: $151
Availability: 2 in stock
Lead time: ~2 day lead
Specifications
- Manufacturer Part Number
- FX3U-485-BD
- Main Function
- Communications expansion board module
- Communication Protocol
- RS-485
- Series
- MELSEC-F FX3U
- Mounting
- DIN rail
- Compatibility
- FX3U
- Equivalent Model
- FX3U485BD
- Compliance
- CE, EMC, KC, ABS, DNV, LR, GL, BV, RINA, NK, KR
- Part #
- FX3U-485-BD
- Category
- PLCs/Machine Control
- Category
- PC Board PLC/Add-On Board
- Weight
- 0.04 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
Need FX3U-485-BD availability?
Prices and stock can change. Submit quantity, required condition, and destination for a current quote.
FAQ
What communication standard does it provide?
RS-485 differential serial communication
How is the module mounted?
It mounts on DIN rail as an FX3U expansion board
Is additional cabling included?
No, cabling and terminators must be sourced per application
Does it carry industry approvals?
Yes, it lists EMC and multiple marine/industrial approvals as specified
What is the equivalent model code?
FX3U485BD