{"product_id":"mitsubishi-electric-fx2n-48mr-ds-fx2n-series-plc-base-unit","title":"Mitsubishi Electric FX2N-48MR-DS FX2N Series PLC Base Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAssembling reliable industrial control architectures requires robust processing cores, and the \u003cstrong\u003eMitsubishi Electric FX2N-48MR-DS\u003c\/strong\u003e PLC Base Unit delivers exactly that with its high-density input\/output configuration and compact form factor. This controller operates on a \u003cstrong\u003e24 VDC\u003c\/strong\u003e power supply, making it an ideal choice for mobile, marine, or battery-backed industrial control systems. It integrates \u003cstrong\u003e24 digital inputs\u003c\/strong\u003e and \u003cstrong\u003e24 relay outputs\u003c\/strong\u003e within a single chassis, facilitating comprehensive local control without requiring immediate extension modules. Built on the proven MELSEC FX2N architecture, this base unit supports high-speed processing, comprehensive instruction sets, and expandable memory structures to handle mid-range manufacturing and process automation tasks with absolute reliability.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24 VDC Power Input:\u003c\/strong\u003e Tailored for standard industrial DC control loops, eliminating the need for AC mains step-down transformers at the controller level.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Input Configuration:\u003c\/strong\u003e 24 digital inputs designed to accept both sink (NPN) and source (PNP) sensor configurations via adjustable terminal wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Relay Outputs:\u003c\/strong\u003e 24 electromagnetically isolated relay output channels capable of driving AC or DC actuator loads up to 2A per point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Processing:\u003c\/strong\u003e Features integrated high-speed counters and interrupt inputs to accurately track fast-moving industrial pulses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModular Expandability:\u003c\/strong\u003e Connects seamlessly with FX2N and FX3U expansion blocks, special function modules, and network interfaces for scaling I\/O counts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eAutomated packaging and cartoning equipment operating on 24V bus architectures.\u003c\/li\u003e\n  \u003cli\u003eConveyor tracking, sorting systems, and specialized material handling machinery.\u003c\/li\u003e\n  \u003cli\u003ePumping stations, remote telemetry units (RTUs), and localized water treatment plant controls.\u003c\/li\u003e\n  \u003cli\u003eMarine control systems and auxiliary engine monitoring units demanding direct DC power compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eValue\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: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFX2N-48MR-DS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMELSEC FX2N\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSupply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 VDC (+20% \/ -15%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e30 W\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eTotal Integrated I\/O\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e48 points\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDigital Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 points (24 VDC, Sink\/Source selectable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDigital Outputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 points (Relay, 2A\/point, 8A\/common max)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Switching Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMax. 250 VAC, Max. 30 VDC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eResponse Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eApprox. 10 ms (relay contact mechanical delay)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProgram Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e8,000 steps (expandable to 16,000 steps with RAM\/EEPROM cassettes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProgramming Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eRS-422 (8-pin Mini-DIN)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eJapan\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.85 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e190 x 110 x 100 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe FX2N series is a legacy workhorse. For modern retrofit configurations where direct replacement stock is limited, the FX3G or FX5U series are suitable functional upgrades. However, note that physical footprint differences and instruction-set updates require code conversion inside GX Works2 or GX Works3. For direct drop-in replacement without modifying the mounting layout, preserving an exact FX2N-48MR-DS unit is critical to avoiding wiring alterations and ensuring compatibility with existing memory cassettes.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen switching inductive loads (such as solenoid valves or contactor coils) with the integrated relay outputs, back-EMF spikes can cause contact erosion and premature failure. Always install external RC snubbers across AC loads and flyback diodes across DC loads to protect the internal relays. Additionally, ensure the cabinet's 24 VDC power supply capacity is sized to account for both the 30W PLC draw and the inrush current of all connected field sensors.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo configure the digital inputs, locate the \"S\/S\" terminal. Wiring 24V to \"S\/S\" configures the inputs as Sink (NPN type), while wiring 0V to \"S\/S\" configures them as Source (PNP type). To minimize electromagnetic interference on high-speed inputs (X0 through X5), use shielded twisted-pair cables for signal paths and ground the shield only at the PLC chassis grounding terminal.\u003c\/p\u003e\n\n\u003ch3\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; font-size: 0.95rem;\"\u003eDisconnect all primary power sources before performing any mounting, wiring, or maintenance procedures on the PLC. Verify complete physical de-energization and confirm no residual capacitive charges remain. Failure to isolate power can result in electrical shock, equipment destruction, or erratic machine startup.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eMount the controller horizontally onto a standard 35mm DIN rail or directly to the enclosure backplane using the integrated mounting screw holes. Ensure a minimum 50mm clearance on all sides to allow proper convective cooling.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the 24 VDC supply power to the dedicated L+ and M terminals on the power supply terminal block. Verify polarity before energizing to prevent input protection fuse failures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eEnsure the PLC grounding terminal (Class D grounding, 100 ohms or less resistance) is bonded directly to the main system earth ground point using a heavy-gauge copper conductor.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eWire input and output signal lines through the integrated terminal blocks. Keep high-voltage AC lines completely segregated from low-voltage DC signals and communication lines to prevent signal coupling.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102146060651,"sku":"FX2N-48MR-DS","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/FX2N-48MR-DS-vynyuqnrel3.png?v=1776137529","url":"https:\/\/www.plcprotech.com\/products\/mitsubishi-electric-fx2n-48mr-ds-fx2n-series-plc-base-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}