Mitsubishi FX5U-32MT/DSS MELSEC iQ-F PLC 16 Inputs 16 Source Outputs 64K Steps

Mitsubishi Electric MELSEC iQ-F FX5U-32MT/DSS is a compact, high-performance programmable logic controller (PLC) CPU unit with built-in digital I/O and analog functions. 16 digital inputs (24 V DC, sink/source configurable) and 16 source‑type transistor outputs (24 V DC, 0.5 A per point). Program memory 64 K steps (128 KB) with LD instruction execution time 34 ns. Built‑in 2‑channel analog input (0 … 10 V), 1‑channel analog output (0 … 10 V), Ethernet (RJ45), RS‑485, and high‑speed I/O functions. 24 V DC power supply, screw‑clamp terminal block, DIN rail mounting.

Applications:

• Factory automation and production line control

• OEM machinery and equipment manufacturing

• Material handling, conveyor and packaging systems

• Legacy FX3U system upgrade and expansion

• Industrial automation requiring integrated analog and high‑speed I/O

Core Specifications:

• Power supply: 24 V DC (range 16.8 … 28.8 V)

• Program memory: 64 K steps (128 KB flash)

• LD instruction execution time: 34 ns

• Digital inputs: 16 (24 V DC, sink/source, M3 screw terminal)

• Digital outputs: 16 (source‑type transistor, 0.5 A per point, M3 screw terminal)

• Built‑in analog inputs: 2 channels (0 … 10 V, 12‑bit)

• Built‑in analog output: 1 channel (0 … 10 V)

• Communication ports: Ethernet (RJ45, 10/100 Mbps), RS‑485 (terminal block)

• High‑speed counters: 6 channels (200 kHz max.) + 2 channels (10 kHz max.)

• Positioning: up to 4 axes (200 kHz max.)

• Mounting: DIN rail (35 mm)

• Dimensions (W × H × D): 150 mm × 90 mm × 83 mm

• Weight: approx. 0.65 kg

Advanced Specifications:

• 5 V DC internal power supply capacity: 900 mA (775 mA at reduced supply voltage)

• 24 V DC service power supply: 400 mA (480 mA typ.)

• Power consumption: 30 W

• Power supply fuse: 250 V, 3.15 A

• Inrush current: max. 50 A within 0.5 ms at 24 V DC

• Allowable momentary power interruption: ≤ 5 ms

• Input response time (X000 … X005): ON/OFF ≤ 2.5 μs; (X006 … X017): ON ≤ 30 μs, OFF ≤ 50 μs

• Digital filter: selectable 10 μs, 0.1 ms, 0.2 ms, 0.4 ms, 0.6 ms, 1 ms, 5 ms, 10 ms (default), 20 ms, 70 ms

• Output response time (Y000 … Y003): ≤ 2.5 μs; (Y004 onward): ≤ 0.2 ms

• Isolation: photocoupler isolation between I/O signals and PLC power supply

• Protection class: III

• Programming languages: Ladder diagram, Structured Text (ST), Function Block Diagram (FBD)

• Device/label memory: 120 KB

• Data memory (standard ROM): 5 MB

• File register (R): 32,768 points

• Data register (D): 8,000 points

• Timer (T): 1,024 points (32‑bit)

• Counter (C): 1,024 points (32‑bit)

• SD memory card slot: SD/SDHC compatible (max. 4 GB)

• Operating temperature: 0 °C … 55 °C

• Storage temperature: –20 °C … 75 °C

• Certifications: CE (EMC, LVD), cUL, KC, RoHS

System Integration:

• This CPU unit belongs to the Mitsubishi Electric MELSEC iQ‑F series.

• Built‑in Ethernet port supports SLMP, MELSOFT connection, socket communication, Modbus TCP, and CC‑Link IE Field Basic.

• RS‑485 port supports N:N network, MELSEC protocol, inverter communication, non‑protocol, and Modbus‑RTU.

• Expansion options: FX5 series special adapters (left side, up to 6 units, including RS‑485, RS‑232C, analog I/O, temperature input, Ethernet, CC‑Link), FX5 series communication boards (front, up to 2 units), FX5 series I/O modules (right side, up to 8 units).

• Programming and configuration performed using GX Works3 engineering software (version 1.047Z or later recommended).

• For detailed installation, wiring and configuration, refer to the MELSEC iQ‑F FX5U User's Manual (Hardware).

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• FX5U‑32MR/DS – 32 I/O version (16 inputs, 16 relay outputs)

• FX5U‑64MT/DSS – 64 I/O version (32 inputs, 32 source transistor outputs)

• FX5‑16EX/ES – 16‑point DC input expansion module

• FX5‑16EYT/ES – 16‑point transistor output expansion module

• FX5‑485‑ADP – RS‑485 communication adapter

• FX5‑4AD‑ADP – 4‑channel analog input adapter

• FX5‑4DA‑ADP – 4‑channel analog output adapter