Temperature Measurement Solution – Mitsubishi FX2N-4AD-PT | FX2N Series
Where This Product Is Used
The Mitsubishi FX2N-4AD-PT is a dedicated 4-channel RTD (Resistance Temperature Detector) analog input module designed for the FX2N PLC series. It is widely deployed across industries where precise, multi-point temperature monitoring is critical to process quality and safety:
- HVAC & Building Automation – Multi-zone temperature monitoring in commercial buildings, clean rooms, and data centers.
- Food & Beverage Processing – Pasteurization lines, cold chain monitoring, and oven/kiln temperature control requiring ±0.5°C accuracy.
- Pharmaceutical Manufacturing – Autoclave and sterilization process control with GMP-compliant temperature logging.
- Plastics & Injection Molding – Barrel and mold temperature regulation for consistent part quality.
- Chemical & Petrochemical Plants – Reactor vessel and pipeline temperature supervision in hazardous environments.
- Water Treatment Facilities – Monitoring influent/effluent temperatures across multiple process stages.
- Metal Heat Treatment – Furnace zone control for annealing, tempering, and hardening processes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | FX2N-4AD-PT |
| Manufacturer | Mitsubishi Electric |
| Series | MELSEC FX2N |
| Input Channels | 4 channels (independent) |
| Sensor Type | PT100 / PT1000 RTD (3-wire) |
| Temperature Range | -100°C to +600°C (PT100); -100°C to +200°C (PT1000) |
| Resolution | 0.1°C |
| Accuracy | ±0.5°C (at 25°C ambient) |
| Conversion Speed | 15 ms/channel (60 ms for 4 channels) |
| Power Consumption | 5 VDC: 30 mA; 24 VDC: 55 mA |
| Occupied I/O Points | 8 points |
| Compatible PLC | FX2N, FX2NC (with adapter) |
| Weight | Approx. 200 g |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -25°C to +75°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Mounting | DIN rail / direct panel mount |
Why Engineers Specify This Model
- Native PT100/PT1000 Support – No external signal conditioner required; direct 3-wire RTD connection eliminates lead resistance errors.
- 4 Independent Channels – Monitor four separate temperature points simultaneously with a single compact module, reducing panel space and wiring cost.
- High Resolution (0.1°C) – Enables tight process control loops that voltage/current analog modules cannot achieve.
- Seamless FX2N Integration – Plug-and-play with the FX2N bus; configured via FROM/TO instructions with no special programming hardware needed.
- Proven Reliability – Mitsubishi Electric’s MELSEC FX series has a global installed base exceeding 20 million units, with documented MTBF >100,000 hours.
- Compact Form Factor – Fits standard FX2N expansion slots without additional mounting hardware.
Complete System Bill of Materials
For a complete FX2N temperature monitoring system, engineers typically specify:
- FX2N-32MR / FX2N-64MR – Base PLC unit (relay output)
- FX2N-4AD-PT – This module (RTD analog input)
- FX2N-CNV-IF – Conversion interface (if using FX2NC base)
- FX2N-8EYR – Expansion output module for control relays
- SC-09 / USB-SC09-FX – Programming cable
- GX Works2 / GX Developer – Programming software
- PT100 3-wire RTD sensors – Application-specific probes (immersion, surface, or air)
- 24 VDC DIN rail power supply – 2A minimum recommended
Compliance & Industry Standards
- CE Marking – EMC Directive 2014/30/EU compliant
- UL Listed – UL 508 (Industrial Control Equipment)
- RoHS Compliant – Directive 2011/65/EU
- IEC 61131-2 – Programmable Controllers standard
- IP20 enclosure rating (module body)
Quality Assurance & Sourcing
All Mitsubishi Electric modules supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes:
- Visual inspection for label authenticity and housing integrity
- Functional power-on verification prior to dispatch
- Anti-static packaging with humidity indicator cards
- Serial number traceability documentation available on request
We supply both new original and tested surplus stock. Condition is clearly stated on each listing. Warranty: 12 months from date of shipment.
How to Source This Part
- In-stock orders – Ships within 1–3 business days via DHL Express / FedEx International Priority.
- Bulk / project orders – Contact us for volume pricing and lead time confirmation.
- Urgent requirements – Same-day dispatch available for orders placed before 14:00 CST.
- OEM / integrator accounts – Apply for a trade account for net-30 terms and dedicated support.
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Application-Specific FAQ
Q: Can the FX2N-4AD-PT accept thermocouple inputs?
A: No. This module is designed exclusively for PT100 and PT1000 RTD sensors. For thermocouple inputs, specify the FX2N-4AD-TC module instead.
Q: Is it compatible with the FX3U or FX5U PLC?
A: The FX2N-4AD-PT is not directly compatible with FX3U/FX5U. For those platforms, use the FX3U-4AD-PT-ADP or FX5-4AD-PT respectively.
Q: How many FX2N-4AD-PT modules can be connected to one FX2N base unit?
A: Up to 8 special function modules can be connected to a single FX2N CPU, subject to the total I/O point limit of 256 points.
Q: What is the wiring configuration for PT100 sensors?
A: The module uses 3-wire RTD connection. Terminals are labeled V+, I+, and COM per channel. Refer to Mitsubishi manual JY992D65801 for detailed wiring diagrams.
Q: Can I read the temperature data in Fahrenheit?
A: The module outputs data in 0.1°C units (digital value). Fahrenheit conversion (°F = °C × 9/5 + 32) must be implemented in the PLC ladder program.
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