{"product_id":"fx2n-4ad-pt-genuine-mitsubishi-fx2n4adpt-plc-analog-module","title":"FX2N-4AD-PT Genuine Mitsubishi FX2N4ADPT PLC Analog Module","description":"\u003ch2 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eMitsubishi FX2N-4AD-PT — 4-Channel PT100 RTD Temperature Input Module for FX2N \/ FX3U PLCs | Genuine New\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBefore specifying this module, there's one thing worth clarifying upfront: the \u003cstrong\u003eFX2N-4AD-PT is not a general-purpose analog input module\u003c\/strong\u003e. It does one specific job — reading \u003cstrong\u003ePT100 platinum resistance thermometers (RTDs)\u003c\/strong\u003e — and it does that job very well. If your application involves temperature measurement with PT100 sensors and you're running an FX2N or FX3U system, this is exactly the module you need. If you're looking for voltage or current analog inputs (0–10V, 4–20mA), that's a different product entirely — the \u003cstrong\u003eFX2N-4AD\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe distinction matters because the two modules are occasionally confused in procurement. The catalog suffix tells you everything: \u003cstrong\u003e\"PT\" = PT100 temperature input\u003c\/strong\u003e. The FX2N-4AD-PT provides \u003cstrong\u003e4 independent PT100 RTD input channels\u003c\/strong\u003e, measuring temperatures from \u003cstrong\u003e–200°C to +600°C\u003c\/strong\u003e with 12-bit resolution, connecting directly to the FX2N or FX3U extension bus without any external signal conditioning or transmitters.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e✅ \u003cstrong\u003eGenuine Mitsubishi Electric. New original factory sealed. One-year warranty. In stock — ships worldwide.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eWhy PT100 Rather Than a Thermocouple Module?\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEngineers choosing between PT100 (RTD) and thermocouple temperature measurement often face this question at the sensor selection stage. The FX2N-4AD-PT is purpose-built for \u003cstrong\u003ePT100 RTDs\u003c\/strong\u003e, which have characteristics that make them preferable in certain situations:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePT100 sensors deliver \u003cstrong\u003ehigher accuracy and better repeatability\u003c\/strong\u003e than most thermocouple types — typically ±0.1°C at the sensor versus ±1–2°C for Type K thermocouples. They don't require cold-junction compensation, which removes a source of measurement drift common in thermocouple systems. The downside is a narrower temperature range (–200 to +600°C for PT100, versus up to 1200°C+ for some thermocouples) and slightly higher sensor cost.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFor applications in food processing, pharmaceutical manufacturing, HVAC, and industrial ovens operating below 600°C, PT100 is often the more accurate and stable choice. The FX2N-4AD-PT directly interfaces with standard 3-wire PT100 sensors and handles the linearization internally — the PLC program receives a digital value in BFM (buffer memory) that directly represents the temperature in 0.1°C increments.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e⚙️ Technical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eParameter\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMitsubishi Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N-4AD-PT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eModule Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSpecial function module — PT100 RTD temperature input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eInput Channels\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e4 (independent, all channels active simultaneously)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSensor Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\n\u003cstrong\u003ePT100 platinum resistance thermometer (RTD)\u003c\/strong\u003e only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eWiring\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e3-wire PT100 connection (lead resistance compensation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e–200°C to +600°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eResolution\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e12-bit → 0.1°C per digit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e±1°C or better (within specified operating range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eConversion Speed\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e~15ms per channel (60ms for all 4 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBFM Address\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBFM #0–#3: Channel 1–4 temperature data (×10, in 0.1°C units)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eExtension Bus\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDirect right-side bus connection to FX2N \/ FX3U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e5VDC from extension bus, 30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCompatible PLCs\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N, FX2NC (adapter required), FX3U, FX3UC (adapter required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDIN Rail Mounting\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e35mm standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCondition\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eGenuine New \/ Factory Sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eReading Data from the FX2N-4AD-PT in Your PLC Program\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe FX2N-4AD-PT is a \u003cstrong\u003especial function module\u003c\/strong\u003e — unlike standard I\/O extension modules, its data is not automatically mapped to X\/Y addresses. Temperature readings are stored in the module's \u003cstrong\u003ebuffer memory (BFM)\u003c\/strong\u003e and must be read using the \u003cstrong\u003eFROM instruction\u003c\/strong\u003e in the FX2N ladder program (or the equivalent in GX Works2\/3).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHere's the practical programming approach:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eStep 1 — Identify the module's unit number.\u003c\/strong\u003e Special function modules are numbered from the leftmost position as Unit 0, 1, 2... The FROM instruction requires this unit number.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eStep 2 — Read channel data using FROM.\u003c\/strong\u003e Each channel's temperature is stored in a dedicated BFM register:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBFM #0  →  Channel 1 temperature (value in 0.1°C — so 245 = 24.5°C)\u003cbr\u003eBFM #1  →  Channel 2 temperature\u003cbr\u003eBFM #2  →  Channel 3 temperature\u003cbr\u003eBFM #3  →  Channel 4 temperature\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eA typical FROM instruction to read Channel 1 into data register D10:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFROM  K0  K0  D10  K1\u003cbr\u003e             │   │    │      └── Read 1 word\u003cbr\u003e             │   │    └─────── Store in D10\u003cbr\u003e             │   └─────────── Start from BFM #0 (CH1)\u003cbr\u003e             └─────────────── Unit number 0 (first special function module)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eStep 3 — Scale the value.\u003c\/strong\u003e The raw BFM value is in \u003cstrong\u003e0.1°C units\u003c\/strong\u003e. To display 24.5°C, D10 will hold the value 245. Divide by 10 for display on an HMI, or work with the raw 0.1°C value in your control logic for finer resolution.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eStep 4 — Check error flags.\u003c\/strong\u003e BFM #29 contains error status bits. A value of H0000 (all zeros) indicates normal operation. Non-zero bits indicate sensor open-circuit, over-range, or module fault conditions.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e🆚 Choosing the Right FX2N Analog \/ Temperature Module\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePlenty of engineers have ordered the wrong module because the naming looks similar. Here's a quick reference to avoid that mistake:\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eModule\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eInput Type\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eSensor \/ Signal\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eRange\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eUse When...\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\n\u003cstrong\u003eFX2N-4AD-PT\u003c\/strong\u003e ← \u003cem\u003eThis unit\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003eTemperature (RTD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003ePT100 only\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e–200 to +600°C\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYou have PT100 RTD sensors wired in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N-4AD-TC\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eTemperature (thermocouple)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eType K \/ J thermocouple\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e–100 to +1200°C\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYou have thermocouple sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N-4AD\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAnalog voltage\/current\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0–10V, 0–20mA, 4–20mA\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e12-bit ADC\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYou need voltage or current analog inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N-2AD\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAnalog voltage\/current\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0–10V, 4–20mA\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e2 channels\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eLower channel count analog input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFX2N-4DA\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAnalog output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0–10V, 4–20mA\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e12-bit DAC\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYou need analog outputs (not inputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe most common ordering mistake: specifying \u003cstrong\u003eFX2N-4AD\u003c\/strong\u003e when the application actually uses PT100 sensors (and vice versa). Always match the module suffix to the sensor type on your drawing before purchasing.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e🏭 Where the FX2N-4AD-PT Gets Used\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFood processing and cold chain\u003c\/strong\u003e — monitoring oven temperatures, blast chiller zones, and fermentation vessel temperatures where PT100's accuracy advantage over thermocouples directly impacts product quality and regulatory compliance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePharmaceutical manufacturing\u003c\/strong\u003e — cleanroom temperature mapping, autoclave cycle monitoring, and API synthesis reactor temperature feedback where ±1°C measurement accuracy is a process validation requirement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHVAC and building management\u003c\/strong\u003e — chiller plant supply\/return temperature differential measurement, air handling unit coil temperature monitoring, and underfloor heating zone control using standard PT100 duct and immersion sensors.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePlastic injection molding\u003c\/strong\u003e — mold temperature zone monitoring (separate from the mold temperature controller's own sensors) providing independent temperature data to the FX2N PLC for alarm and process logging.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eLaboratory and test equipment\u003c\/strong\u003e — environmental chamber control, material testing furnace feedback, and calibration bath temperature monitoring where PT100 accuracy and stability are preferred over thermocouple drift.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIndustrial boiler and heat exchanger control\u003c\/strong\u003e — feedwater temperature measurement, economizer performance monitoring, and condensate return temperature logging on process heating systems.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e📦 Procurement \u0026amp; Stock Information\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e🔒 Genuine Mitsubishi Electric — not refurbished, not compatible replacement, not third-party\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e✅ New original — factory sealed with Mitsubishi Electric packaging and labels\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e📋 One-year warranty\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e📦 Original Mitsubishi factory box, securely packed for international transit\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e🌍 Worldwide express shipping (DHL \/ FedEx \/ UPS)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e⚡ In stock — dispatches within 1–2 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e❓ FAQ — Mitsubishi FX2N-4AD-PT PT100 Temperature Input Module\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ1: What's the difference between FX2N-4AD-PT and FX2N-4AD — can I use them interchangeably?\u003c\/strong\u003e No, they are completely different modules for different sensor types and cannot substitute for each other. The \u003cstrong\u003eFX2N-4AD-PT reads PT100 RTD temperature sensors only\u003c\/strong\u003e — it expects the resistance change of a platinum element as its input signal. The \u003cstrong\u003eFX2N-4AD is a general-purpose analog input module\u003c\/strong\u003e that reads voltage (0–10V, ±10V) and current (0–20mA, 4–20mA) signals from transmitters and other analog devices. Connecting a PT100 sensor to an FX2N-4AD will not produce temperature readings. Connecting a 4–20mA transmitter to an FX2N-4AD-PT will likely damage the module. Always match the module to the sensor type in your wiring design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ2: Does the FX2N-4AD-PT work with FX3U PLCs, or is it FX2N-only?\u003c\/strong\u003e The FX2N-4AD-PT is mechanically and electrically compatible with the \u003cstrong\u003eFX3U extension bus\u003c\/strong\u003e and can be connected directly to the right side of an FX3U base unit alongside FX3U-native special function modules. The FROM\/TO instructions for reading BFM data work identically on the FX3U. For \u003cstrong\u003eFX2NC and FX3UC\u003c\/strong\u003e compact-format base units, a bus conversion adapter (FX2NC-CNV-IF or similar) is required due to the different connector format on those units. The FX2N-4AD-PT is not compatible with older FX0N, FX1S, or FX1N systems, which have a different extension architecture.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ3: The module accepts \"3-wire PT100\" — what does the third wire do and can I use 2-wire sensors?\u003c\/strong\u003e The third wire in a 3-wire PT100 connection is used for \u003cstrong\u003elead resistance compensation\u003c\/strong\u003e. PT100 sensors measure resistance, and the resistance of the wires connecting the sensor to the module introduces a small but measurable error — typically 0.4Ω per meter of copper wire, which equates to roughly 1°C of measurement error per meter of wire length each way. The 3-wire connection allows the module to measure the lead resistance of one wire and subtract twice that value from the total measured resistance, effectively canceling the lead resistance error. You can connect 2-wire PT100 sensors by shorting the two negative (B) terminals together, but you lose lead resistance compensation and will have a fixed offset error proportional to wire length. For accurate measurements over any significant cable run, 3-wire PT100 sensors are strongly recommended.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ4: How do I read the temperature value in my GX Works2 ladder program?\u003c\/strong\u003e Use the \u003cstrong\u003eFROM instruction\u003c\/strong\u003e to read BFM (buffer memory) data from the module. The basic syntax is \u003ccode class=\"bg-text-200\/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]\"\u003eFROM [unit number] [BFM start address] [destination register] [number of words]\u003c\/code\u003e. Temperature data is stored in BFM #0 (Channel 1) through BFM #3 (Channel 4), with each value representing temperature in \u003cstrong\u003e0.1°C units\u003c\/strong\u003e as a signed 16-bit integer. So a BFM value of 253 means 25.3°C, and –150 means –15.0°C. The unit number is determined by the module's physical position on the extension bus — the first special function module from the left is Unit 0, the second is Unit 1, and so on. Standard I\/O extension modules (like FX2N-16EX, FX2N-16EYR) do not count as special function modules for unit numbering purposes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ5: One channel is reading an obviously wrong temperature — how do I diagnose it?\u003c\/strong\u003e Start by reading \u003cstrong\u003eBFM #29\u003c\/strong\u003e using a FROM instruction or the GX Works2 device monitor — this is the module's error status register. Each bit corresponds to a specific error condition: bit 0 = Channel 1 error, bit 1 = Channel 2 error, etc. A set bit indicates that channel has detected a fault, most commonly an \u003cstrong\u003eopen-circuit sensor\u003c\/strong\u003e (disconnected or broken PT100 wire) or an \u003cstrong\u003eout-of-range reading\u003c\/strong\u003e (temperature outside –200 to +600°C, which can indicate a wrong sensor type or wiring fault). If the error bit is clear but the reading is still incorrect, check: (1) correct 3-wire connection at the module terminals; (2) PT100 sensor resistance at room temperature — a genuine PT100 should measure approximately 100Ω at 0°C and about 109Ω at 23°C; (3) that the sensor is actually a PT100 and not a PT1000 or Ni100 (different resistance curves, incompatible with this module).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ6: Is the FX2N-4AD-PT still available new, or has it been discontinued by Mitsubishi?\u003c\/strong\u003e The FX2N product family is a mature product line — Mitsubishi Electric has progressively migrated to FX5U as the current-generation platform. However, \u003cstrong\u003eFX2N-4AD-PT units continue to be available as new original stock\u003c\/strong\u003e through authorized and specialist distributors, as there remains significant installed base of FX2N and FX3U systems in production worldwide. This unit ships as new original factory sealed stock. For new machine designs, engineers should evaluate whether the \u003cstrong\u003eFX3U-4AD-PT-ADP\u003c\/strong\u003e (the FX3U-native PT100 adapter block) would be more appropriate, as it supports newer GX Works3 features. For replacement and maintenance of existing FX2N or FX3U systems, the FX2N-4AD-PT remains the correct and direct replacement part.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ7: How many FX2N-4AD-PT modules can I connect to a single FX2N base unit?\u003c\/strong\u003e The FX2N system supports up to \u003cstrong\u003e8 special function modules\u003c\/strong\u003e per system, and each FX2N-4AD-PT counts as one special function module. With 4 input channels per module, a fully expanded system could theoretically monitor up to 32 PT100 sensors from a single FX2N CPU — though in practice, the total I\/O point budget (maximum 256 points across all extension devices) and the extension bus power budget also apply. Each FX2N-4AD-PT draws 30mA from the 5VDC extension bus. Check your FX2N base unit's extension power specifications against the total current draw of all connected extension modules before commissioning a fully loaded system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0635\/6516\/8701\/files\/MitsubishiFX2N-4AD-PT_2_800x800_9352df9e-ffe3-4daa-bee6-c7ded7304654.jpg?v=1772773612\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"topsdevice","offers":[{"title":"Default Title","offer_id":42782150492221,"sku":null,"price":68.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/6516\/8701\/files\/Mitsubishi_FX2N-4AD-PT.jpg?v=1773720012","url":"https:\/\/topsdevice.com\/products\/fx2n-4ad-pt-genuine-mitsubishi-fx2n4adpt-plc-analog-module","provider":"topsdevice","version":"1.0","type":"link"}