{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-128MT/ESS","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-128MT-ESS","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-128MT-ESS","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-128MT%2FESS","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSEC-F Series, FX3U-128MT/ESS, PLC base unit, 64 DC inputs + 64 transistor source outputs, 256 local I/O, 100-240 VAC, 64K steps, IP10.","salesMarkdown":"The Mitsubishi FX3U-128MT/ESS is a MELSEC-F series PLC base unit with 64 DC 24 V inputs and 64 transistor source outputs, handling up to 256 local I/O points (384 with remote expansion). It runs on 100-240 VAC, consuming 65 W, and offers a 64K step program memory with a cycle time of 65 ns for LD instructions and 642 ns for MOV. Built-in RS-422 is standard; USB is an option. The unit is expandable via the MELSEC-F extension bus, accepts buffer battery-backed RAM, and is rated IP10 for basic environmental protection. Its operating range is 0–55 °C. The closest functional peer within the current Mitsubishi PLC line is the FX5U-64MT/DS, which is part of the newer iQ-F series. The FX3U-128MT/ESS offers 64 inputs and 64 outputs, while the FX5U-64MT/DS provides 32 inputs and 32 outputs.","metaTitle":"Mitsubishi FX3U-128MT/ESS PLC, 64 inputs 64 transistor outpu","metaDescription":"Mitsubishi MELSEC-F FX3U-128MT/ESS PLC: 64 DC inputs, 64 transistor source outputs, 256 local I/O, 384 with remote. Cycle time 65 ns. Mature lifecycle; sourced via cross-border cha","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"USB":"OPTION","Type":"FX3U","RS-422":"1","Series":"MELSEC-F SERIES","Weight":"1,499 kg","Expandable":"YES","Output Type":"TRANSISTOR","Current Type":"AC","Manufacturer":"Mitsubishi Electric","Output Logic":"SOURCE","Buffer Battery":"YES","Program Memory":"64K STEPS","Shipping Weight":"2.5 Kg","lifecycle_stage":"mature","Local I/O Points":"256","Power Supply (V)":"100-240","Protection Class":"IP10","Cycle Time LD (ns)":"65","Cycle Time MOV (ns)":"642","Estimated Lead Time":"1 - 10 Working Days","Program Memory Unit":"RAM","Power Consumption (W)":"65","Integrated Digital Inputs":"64","Local + Remote I/O Points":"384","Integrated Digital Outputs":"64","Max. Ambient Temperature (°C)":"55","Min. Ambient Temperature (°C)":"0","PLC, FX3U Base Unit AC 100-240 V":"64 inputs DC 24 V; 64 transistor outputs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$454.00 – $1,109.73","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30baf0ab34deb802b300bd52f20fe84b.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/FX3U-128MT%2FESS/alternatives.json"},"ai":{"faq":[{"question":"Does the FX3U-128MT/ESS have a USB port?","answer":"USB is an option (listed as OPTION). The standard port is RS-422. Verify whether your unit has the USB board installed or if you need to order it separately."},{"question":"What type of PLC is this?","answer":"It is a Mitsubishi MELSEC-F series FX3U base unit, model FX3U-128MT/ESS, with 64 DC inputs and 64 transistor source outputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-128MT-ESS","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/mitsubishi/FX3U-128MT-ESS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}