{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"QJ71MT91","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"QJ71MT91","canonicalUrl":"https://aoctrl.com/mitsubishi/QJ71MT91","factsUrl":"https://aoctrl.com/api/mcp/products/QJ71MT91","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi QJ71MT91 Modbus/TCP Network Module, 64k points coil/input/register, 64 slaves, RJ45, 0.52 A.","salesMarkdown":"## Lifecycle and certifications The QJ71MT91: This module is in the mature stage of its product lifecycle, meaning it remains in ongoing production and support. It holds UL, cUL, and CE certifications, covering the typical compliance requirements for panel-mounted industrial automation gear in North America and Europe. ## Sourcing posture QJ71MT91 is available for quoted orders; typical lead time runs 1–10 working days from order confirmation. No official replacement or successor has been announced, so this module remains the current fit for new builds and spares alike. Submit an RFQ to confirm fit and availability against your BOM line.","metaTitle":"Mitsubishi QJ71MT91 Modbus/TCP Module, 64k points, 64 slaves","metaDescription":"Mitsubishi QJ71MT91 Modbus/TCP network module for MELSEC Q-series. Supports 64 slaves, 64k points each for coil/input/holding register. Mature lifecycle, UL/cUL/CE certified. Sourc","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Communication Modules"],"specifications":{"Coil":"64k points","Input":"64k points","title":"QJ71MT91","Weight":"0.11 Kg","Product No.":"QJ71MT91","description":"Modbus/TCP Network Module","Product Type":"Modbus/TCP Network Module","Certification":"UL • cUL • CE","Input Register":"64k points","Input Area Size":"Max. 253 bytes per instruction","Shipping Weight":"1.5 Kg","lifecycle_stage":"mature","Holding Register":"64k points","Output Area Size":"Max. 253 bytes per instruction","MODBUS Device Size":"Coil : 64k points Input : 64k points Input Register : 64k points","Estimated Lead Time":"Usually ships in 1-10 working days.","Dedicated Instruction":"Number of Instructions That Can Be Executed Concurrently (*4) : Up to 8 instructions Input Area Size : Max. 253 bytes per instruction Output Area Size : Max. 253 bytes per instruction","Number of Slaves (*3)":"64 slaves","Extenden File Register":"Max. 4086k points","I/O Device Points Occupied":"32 points","Maximum Segment Length (*1)":"100m","Maximum Node-To-Node Distance":"200m","Automatic Communication Function":"Number of Slaves (*3) : 64 slaves Input Area Size : 4k words Output Area Size : 4k words","5VDC Internal Current Consumption":"0.52A","Number of Routers That Can Be Set":"1 default router + any 8 routers","Maximum Number of Connections (*2)":"64 connections","Connector Applicable For External Wiring":"RJ45","Number of Simultaneously Connectable MELSOFT PCs":"Max. 8","No. of Simultaneously Acceptable Request Messages":"64","Number of Instructions That Can Be Executed Concurrently (*4)":"Up to 8 instructions"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$570.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f8a72d5f009e6cae90043281c11feb05.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the Modbus data sizes supported?","answer":"The module supports 64k points each for coils, inputs, and holding registers."},{"question":"What certifications does it carry?","answer":"UL, cUL, and CE certifications are listed."},{"question":"How many Modbus slaves can be connected?","answer":"Up to 64 slaves are supported per module."},{"question":"What is the maximum cable segment length?","answer":"100 meters per segment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/QJ71MT91","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/QJ71MT91 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}