Mitsubishi FX1N-40MR-001 MELSEC-F 40-Point PLC 24 Inputs 16 Relay Outputs

Mitsubishi Electric MELSEC‑F FX1N‑40MR‑001 is a compact programmable logic controller with integrated power supply, CPU and I/O. 24 digital inputs (24 V DC sink) and 16 relay outputs (2 A per point). 8,000‑step EEPROM program memory (expandable to 16,000 steps). LD instruction execution time 0.55 – 0.7 μs. 100‑240 V AC power supply. This product is discontinued and available as a spare part for maintaining existing FX1N‑based automation systems.

Applications:

• Conveyor control and material handling systems

• Packaging machinery and assembly line sequencing

• Machine automation and OEM equipment

• General factory automation and small‑scale process control

Core Specifications:

• Total I/O points: 40 (24 inputs / 16 outputs)

• Program memory: 8,000 steps (EEPROM, expandable to 16,000 steps)

• LD instruction execution time: 0.55 – 0.7 μs

• Power supply: 100‑240 V AC (±10 %), 50/60 Hz

• Power consumption: 32 W

• Output type: Relay (16 points, 2 A per point, 8 A per common)

• Auxiliary relay (M): 1,536 points (general 384, keep 1,152, special 256)

• Timer (T): 256 points (100 ms 200 points, 10 ms 46 points, 1 ms keep 4 points, 100 ms keep 6 points)

• Counter (C): 235 points (16‑bit up 200 points, 32‑bit bidirectional 35 points)

• Data register (D): 8,000 points (general 128, keep 7,872)

• Extension registers (R): 24,000 points

• DC24V service power supply: 400 mA (for sensors)

Input Specifications:

• Number of inputs: 24 (sink type, 24 V DC)

• Input impedance: X000 – X007 : 3.3 kΩ, X010 onward : 4.3 kΩ

• Input current: 7 mA / 24 V DC (X000 – X007), 5 mA / 24 V DC (X010 onward)

• ON sensitivity current: 4.5 mA min (X000 – X007), 3.5 mA min (X010 onward)

• OFF sensitivity current: 1.5 mA max

• Response time: approx. 10 ms (X000 – X007 adjustable 0 – 15 ms)

• Isolation: Photocoupler isolation

• Indicators: LED (lit when input is ON)

Output Specifications:

• Number of outputs: 16 (relay, normally open)

• External power supply: 250 V AC / 30 V DC max

• Max load (resistive): 2 A per point, 8 A per common

• Minimum load: 5 V DC, 2 mA

• Response time: approx. 10 ms

• Mechanical life: ≥ 20,000,000 operations

• Electrical life: ≥ 100,000 operations (rated load)

Advanced Specifications:

• Built‑in functions: 2‑axis independent open collector pulse output (transistor output models only), real‑time clock (all FX1N models), RUN/STOP switch, password protection (8‑digit)

• High‑speed counters: C235 – C255 (single‑phase up to 4 channels, 5 kHz max; two‑phase up to 1 channel, 2 kHz max)

• Interrupt inputs: X000 – X005 (falling / rising edge)

• Program filter: X000 – X007 input filter adjustable (D8020, 0 – 15 ms)

System Integration:

• This CPU unit belongs to the Mitsubishi Electric MELSEC‑F FX1N series.

• Expands with FX0N/FX2N series I/O expansion units and special function modules.

• Up to 16 expansion units (special function modules) and 2 expansion boards can be connected.

• Supports CC‑Link remote I/O for extended system capacity (up to 256 points).

• Programmed using GX Works2 (English) or GX Developer (version 8.72A or higher) via built‑in RS‑422 port.

• Communication options: RS‑232C, RS‑422/485 via function expansion boards.

Product Status:
Discontinued as of December 1, 2015. Recommended successor: FX3G‑40MR/ES (same I/O configuration, backward‑compatible terminal layout, removal of existing terminal blocks from FX1N and placement on FX3G is supported without additional wiring). For new installations, use the recommended successor.

Related Products:

• FX3G‑40MR/ES – Recommended replacement for new installations

• FX2N‑16EX – 8‑point DC input expansion unit (sink)

• FX2N‑16EYR – 8‑point relay output expansion unit

• FX1N‑232‑BD – RS‑232C communication board

• FX1N‑485‑BD – RS‑422/485 communication board

• FX1N‑EEPROM‑16L – EEPROM memory cassette (16,000 steps)