{"product_id":"mitsubishi-electric-fx2n-128mr-es-ul-fx2n-series-plc-base-unit","title":"Mitsubishi Electric FX2N-128MR-ES\/UL FX2N Series PLC Base Unit","description":"\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eExecuting high-density control sequences across manufacturing lines, the \u003cstrong\u003eMitsubishi Electric FX2N-128MR-ES\/UL\u003c\/strong\u003e functions as the primary processing base unit within the legacy MELSEC FX2N architecture. This controller integrates processing, power supply, and extensive digital I\/O within a single compact chassis, making it a reliable choice for medium-to-large industrial automation applications requiring robust relay outputs and high-speed execution.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eIntegrated 128 local I\/O points (64 inputs and 64 relay outputs) expandable up to 256 points via extension blocks.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in 100-240V AC power supply with integrated 24V DC auxiliary power output for field sensors.\u003c\/li\u003e\n  \u003cli\u003eElectromechanical relay output contacts rated for 2A per point, allowing direct control of contactors and solenoids.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed processing capability with a basic instruction execution time of 0.08 microseconds.\u003c\/li\u003e\n  \u003cli\u003eRemovable terminal blocks that facilitate rapid field replacement and minimize downtime during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eConveyor systems and material handling sorting lines.\u003c\/li\u003e\n  \u003cli\u003ePackaging machinery, wrapping stations, and automated assembly lines.\u003c\/li\u003e\n  \u003cli\u003eWater treatment facilities, pump station control panels, and fluid management.\u003c\/li\u003e\n  \u003cli\u003eHVAC systems, environmental control chambers, and building automation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFX2N-128MR-ES\/UL\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMELSEC FX2N\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInput Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e64 Points (24V DC, Sink\/Source selectable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOutput Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e64 Points (Relay)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOutput Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2A per point, 8A per common terminal (250V AC \/ 30V DC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSupply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e100 to 240V AC (+10% \/ -15%), 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePower Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e100 VA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eAuxiliary Power Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e24V DC, 460 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProgram Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e8k steps (expandable to 16k steps with memory cassette)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0 to 55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e-20 to 70 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 380 x 110 x 110 mm;\"\u003e380 x 110 x 110 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eTerminal \/ Port\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eFunction \/ Circuit Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eL, N\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAC Power Supply Input (100 to 240V AC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eGround Terminal\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eProtective Earth (PE) ground connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003e24+, 24-\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e24V DC Auxiliary Power Output (for sensor excitation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eS\/S\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eInput Common Terminal (Sink\/Source configuration selection)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eX0 to X77\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e24V DC Digital Inputs (Octal numbering system)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCOM0 to COM7\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIsolated Relay Output Common Terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eY0 to Y77\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRelay Output Terminals (Octal numbering system)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe FX2N series is a legacy product line. For modern system retrofits, the \u003cstrong\u003eFX3U-128MR\/ES-A\u003c\/strong\u003e serves as the direct physical and functional successor. It utilizes the same mounting footprint and terminal block layout, though program conversion via GX Works2 or GX Developer is required to compile the legacy FX2N instruction set to the newer FX3U architecture.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eInductive loads such as solenoids, contactor coils, and magnetic valves generate significant back-EMF when switched off. To prevent premature contact welding and contact resistance degradation on the internal relays, always install external RC suppressors for AC loads or flyback diodes for DC loads. Additionally, ensure the total current drawn from the auxiliary 24V DC terminal does not exceed 460 mA, as overloading this terminal will trigger the internal overcurrent protection and shut down the input circuits.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen wiring the digital inputs, configure the S\/S terminal based on your sensor type. Connect the S\/S terminal to the 24V terminal for Sink input configuration (NPN sensors) or to the 0V terminal for Source input configuration (PNP sensors). Avoid running I\/O signal cables in the same conduit or wire duct as high-voltage power lines to prevent electromagnetic interference from corrupting the input signals.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; font-weight: bold; margin: 0 0 0.5rem 0;\"\u003eCRITICAL WARNING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate all external power sources before attempting installation, wiring, or module replacement. Residual charges in the internal capacitors can present a shock hazard. Ensure the unit is mounted in a well-ventilated enclosure to prevent thermal buildup.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the PLC base unit securely onto a 35mm DIN rail or directly to the backplate of the enclosure using the integrated mounting screw holes.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the protective ground (PE) terminal to the main system ground busbar using a wire with a cross-section of at least 2.0 mm².\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eWire the AC power supply lines (100-240V AC) to the L and N terminals using crimped bootlace ferrules to prevent loose strands from shorting.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eVerify the S\/S terminal jumper configuration matches your field sensor logic (NPN or PNP) before applying power to the unit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102151401835,"sku":"FX2N-128MR-ES\/UL","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/FX2N-128MR-ESUL-qoc525x42zc.png?v=1776137523","url":"https:\/\/www.plcprotech.com\/ms\/products\/mitsubishi-electric-fx2n-128mr-es-ul-fx2n-series-plc-base-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}