Home / Mitsubishi Electric (Factory Automation) / Mitsubishi MELSEC-F (FX) Series – Data link/Communication / FX3U-485-BD Mitsubishi MELSEC-F (FX) Series Data link/Communication

Available on request

FX3U-485-BD Mitsubishi MELSEC-F (FX) Series Data link/Communication

MPN: FX3U-485-BD · Brand: Mitsubishi Electric (Factory Automation)

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Mitsubishi MELSEC-F (FX) Series – Data link/Communication
Lifecycle	Active mature
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can FX3U-485-BD be shipped?

FX3U-485-BD is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up FX3U-485-BD in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for FX3U-485-BD and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for FX3U-485-BD, subject to availability and destination.

The Mitsubishi Electric FX3U-485-BD is a data link/Communication in the MELSEC-F (FX) Series. RS-485 communication (FX3UC PLC can be installed only on FX3UC-32MT-LT(-2)). Mitsubishi Electric has announced its discontinuation (2028/03 To be end of order) — plan spares now; PartnerPLC also sources it on the surplus market after the end of order. Specifications and manuals below are Mitsubishi Electric's own data.

Specifications

Product

Series	MELSEC-F (FX) Series
Category	Data link/Communication
Sales status	2028/03 To be end of order (Mitsubishi Electric)
Outline	RS-485 communication (FX3UC PLC can be installed only on FX3UC-32MT-LT(-2))

Specifications

Applicable PLC	FX3U, FX3UC-32MT-LT(-2)
Number of occupied I/O points	0 point (This number is not related to the maximum number of input/output points of the PLC.)
Communication method	Half-duplex, bidirectional communication
Communication speed: Non-protocol communication, Computer link	300/600/1200/2400/4800/9600/19200 (bps)
Communication speed: Parallel link	115200 (bps)
Communication speed: N:N Network	38400 (bps)
Communication speed: Inverter communication	4800/9600/19200 (bps)
Communication format	Non-Protocol Communication, Computer link (Dedicated protocol formats 1, Dedicated protocol formats 4), Parallel Link, N:N Network, Inverter Communication
Transmission standard	Conforming to RS-485/RS-422
Transmission distance	50 m maximum
Connection method	European terminal block
LED	RD, SD
Isolation method	Non-isolated (between communication line and CPU)

Power supply specifications

Power supply

5 V DC 40 mA (internal power supply from PLC main unit)

Specifications

Ambient temperature	0 to 55°C when operating and -25 to 75°C when stored
Ambient humidity	5 to 95%RH (no condensation) when operating
Vibration resistance: Installed on DIN rail: Frequency: 10 to 57 Hz	Half amplitude: 0.035 mm Sweep Count for X, Y, Z: 10 times (80 min in each direction)
Vibration resistance: Installed on DIN rail: Frequency: 57 to 150 Hz	Acceleration: 4.9 m/s 2 Sweep Count for X, Y, Z: 10 times (80 min in each direction)
Vibration resistance: Direct installing: Frequency: 10 to 57 Hz	Half amplitude: 0.075 mm Sweep Count for X, Y, Z: 10 times (80 min in each direction)
Vibration resistance: Direct installing: Frequency: 57 to 150 Hz	Acceleration: 9.8 m/s 2 Sweep Count for X, Y, Z: 10 times (80 min in each direction)
Shock resistance	147 m/s 2 Acceleration, Action time: 11 ms, 3 times by half-sine pulse in each direction X, Y, and Z
Noise resistance	By noise simulator at noise voltage of 1,000 Vp-p, noise width of 1 μs, rise time of 1 ns and period of 30 to 100 Hz
Dielectric withstand voltage	Non-isolated between communication line and PLC main unit (Do not perform a withstand voltage test.)
Insulation resistance	Non-isolated between communication line and PLC main unit (Do not perform an insulation resistance test.)
Working atmosphere	Free from corrosive or flammable gas and excessive conductive dusts
Working altitude	2000 m or less Do not use the PLC under pressure higher than the atmospheric pressure. Doing so may damage the PLC.