Mitsubishi FX1N-24MT-001 – 24-Point Transistor Output Programmable Logic Controller | MELSEC FX1N Series
Engineering Background
The Mitsubishi MELSEC FX1N series represents one of the most widely deployed compact PLC platforms in Asian and global manufacturing environments. Engineered by Mitsubishi Electric’s FA (Factory Automation) division in Japan, the FX1N line was designed to bridge the gap between entry-level micro-PLCs and full-featured mid-range controllers — delivering deterministic scan times, robust I/O expansion capability, and native communication support in a DIN-rail-mountable form factor.
Product Positioning
The FX1N-24MT-001 is the 24-point transistor-output base unit of the FX1N family. With 14 DC inputs and 10 transistor (NPN sink) outputs, it is purpose-built for high-speed pulse output applications including servo drives, stepper motor positioning, and frequency-controlled conveyors. It is the preferred choice for procurement engineers sourcing a compact, expandable PLC for OEM machine builders and system integrators operating in East Asian industrial ecosystems.
Complete Technical Specifications
| Model | FX1N-24MT-001 |
| Manufacturer | Mitsubishi Electric (三菱電機) |
| Series / Platform | MELSEC FX1N |
| Total I/O Points | 24 (14 Inputs + 10 Outputs) |
| Input Type | DC 24V Sink/Source (X0–X013) |
| Output Type | Transistor NPN Sink (Y0–Y011) |
| Max Output Current | 0.5 A per point; 0.8 A per common |
| High-Speed Pulse Output | Up to 100 kHz (Y0, Y1, Y2) |
| Program Memory | 8,000 Steps (EEPROM) |
| Instruction Set | 209 Basic + Applied Instructions |
| Scan Time | 0.55–0.7 μs per basic instruction |
| Power Supply | AC 100–240V, 50/60 Hz |
| Power Consumption | 30 VA max |
| Built-in Communication | RS-422 (Programming port) |
| Expandable I/O | Up to 128 points via FX1N expansion modules |
| Special Function Modules | Analog, positioning, communication (FX2N-compatible) |
| RTC (Real-Time Clock) | Optional (FX1N-8AW-BD or battery backup) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -25°C to +75°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Vibration Resistance | 10–55 Hz, 0.5 mm amplitude (IEC 60068-2-6) |
| Enclosure Rating | IP20 (panel-mount) |
| Dimensions (W×H×D) | 130 × 90 × 75 mm |
| Weight | Approx. 650 g |
| Certifications | CE, UL, cUL, KC |
| Country of Origin | Japan |
| Part Number / SKU | FX1N-24MT-001 |
Proven Application Environments
- Servo & Stepper Positioning: High-speed pulse output (Y0/Y1/Y2 up to 100 kHz) enables precise single- and dual-axis motion control without external pulse generators.
- Conveyor & Material Handling: Deterministic scan times and robust NPN outputs drive VFDs and solenoid valves reliably in continuous-duty environments.
- Injection Molding Machines: Widely deployed in Chinese OEM molding equipment for sequence control and alarm management.
- Packaging & Labeling Lines: Compact footprint and DIN-rail mounting suit space-constrained control panels.
- HVAC & Building Automation: Expandable I/O and optional analog modules support multi-zone control applications.
- Water Treatment & Pump Control: Proven in municipal and industrial water systems across Southeast Asia.
Engineering Advantages
- Transistor Output Reliability: Solid-state NPN outputs eliminate contact wear, enabling >10 million switching cycles — critical for high-cycle OEM machinery.
- Native Expansion Architecture: Seamlessly integrates FX1N/FX2N expansion I/O and special function modules (analog, positioning, CC-Link) without gateway hardware.
- GX Developer / GX Works2 Compatible: Full programming support in Mitsubishi’s standard IEC 61131-3 toolchain — no proprietary licensing surprises.
- EEPROM Program Retention: No battery required for program storage; retains logic through power cycles and transport.
- Compact DIN-Rail Form Factor: 130 mm width fits standard 35 mm DIN rail in space-constrained panels.
- Proven Long-Term Availability: FX1N has been in production since 2000; spare parts and replacements are globally stocked.
System Architecture & Signal Flow
The FX1N-24MT-001 operates on a cyclic scan architecture: Input Refresh → Program Execution → Output Refresh → Peripheral Service. The CPU reads all 14 digital inputs into the input image register at the start of each scan, executes the user ladder program (up to 8,000 steps), then writes output states to the 10 NPN transistor output drivers. High-speed counters (C235–C255) and pulse output instructions (PLSY, PLSR, DDRVI) bypass the scan cycle and operate via dedicated hardware interrupt channels, enabling sub-millisecond response for motion control tasks.
Communication is handled via the built-in RS-422 port (programming/HMI) and optionally extended via FX1N-232-BD, FX1N-485-BD, or FX1N-CNV-BD adapter boards for Modbus RTU, RS-232C, or CC-Link integration.
Sourcing & Quality Verification
- Origin: Genuine Mitsubishi Electric product, manufactured in Japan.
- Inspection: Each unit undergoes visual inspection, label verification (holographic Mitsubishi seal), and functional power-on test prior to shipment.
- Packaging: Ships in original Mitsubishi anti-static packaging with factory documentation where available.
- Traceability: Serial number and date code recorded at dispatch; available upon request for MRO and OEM procurement records.
- Warranty: 12-month Konmask operational warranty against manufacturing defects.
Procurement Process
- Confirm Quantity & Lead Time: Contact us via the form below or email [email protected] with your required quantity and delivery timeline.
- Quotation: We issue a formal quotation (PDF) within 1 business day, including unit price, shipping cost, and estimated delivery.
- Order Confirmation: Submit purchase order or proceed to checkout. Bank transfer (T/T), PayPal, and major credit cards accepted.
- Inspection & Dispatch: Units are inspected, photographed, and dispatched within 2–3 business days via DHL Express, FedEx, or EMS.
- After-Sales Support: Technical support available via email and WhatsApp for installation, wiring, and GX Works2 programming queries.
Technical FAQ
Q: What is the difference between FX1N-24MT-001 and FX1N-24MR-001?
A: The -24MT variant uses transistor (NPN) outputs suitable for high-speed pulse and DC load switching. The -24MR variant uses relay outputs, which support AC loads but cannot perform high-speed pulse output.
Q: Can the FX1N-24MT-001 control a servo drive directly?
A: Yes. Y0 and Y1 support up to 100 kHz pulse output via PLSY/DDRVI instructions, compatible with most Mitsubishi MR-J4/MR-JE servo amplifiers and third-party pulse-input drives.
Q: Is GX Works3 compatible with FX1N?
A: No. FX1N requires GX Developer or GX Works2. GX Works3 supports only iQ-R, iQ-F (FX5U), and L-series CPUs.
Q: What expansion modules are compatible?
A: FX1N supports FX1N-EX, FX2N-EX expansion I/O blocks, and FX2N special function modules (analog, positioning, communication) via the right-side expansion bus.
Q: Can I add Ethernet communication?
A: Not natively. Ethernet requires an FX3U-ENET-ADP or a third-party Modbus TCP gateway connected via the RS-485 board (FX1N-485-BD).
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