{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"140NOM21200","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"140NOM21200","canonicalUrl":"https://aoctrl.com/schneider/140NOM21200","factsUrl":"https://aoctrl.com/api/mcp/products/140NOM21200","rawCanonicalId":null},"summary":{"shortDescription":"Schneider 140NOM21200 Plc Expansion Modules — now discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.","salesMarkdown":"## Overview The 140NOM21200 is a Schneider Modicon Quantum DIO head-end adaptor, order code 140NOM21200, handling 30 input and 32 output words over a single Modbus RS232 twisted-pair port and two Modbus Plus RS485 twisted-pair ports at 1 Mbit/s. It draws 4.0 W, mounts on a chassis, and carries UL 508 and California Proposition 65 compliance marks. This module acts as a DIO head-end adaptor for the Modicon Quantum platform, bridging remote I/O drops to the controller over Modbus Plus at 1 Mbit/s. The 30 input and 32 output words define the I/O capacity it can map — enough for medium-density distributed racks with discrete and analog signals. The single Modbus RS232 port handles point-to-point programming or connection to legacy serial devices, while the two Modbus Plus RS485 ports support redundant twisted-pair cabling for fault-tolerant fieldbus networks. The checks field (RAM Processor RAM address Checksum) indicates the module performs internal memory integrity verification on startup. ## Applications Modicon Quantum DIO head-end adaptors like the 140NOM21200 are used in process and hybrid automation — oil and gas skids, water treatment plants, power generation balance-of-plant, and material handling systems — where remote I/O racks are distributed across a plant floor and communicate over Modbus Plus to a central Quantum controller.","metaTitle":"Schneider 140NOM21200 Modicon Quantum DIO Head-End, 30 I/32 O","metaDescription":"Schneider Modicon Quantum 140NOM21200 DIO head-end adaptor: 30 I/32 O words, 1 Modbus RS232 + 2 Modbus Plus RS485, 1 Mbit/s, 4.0 W, UL 508, discontinued.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Checks":"RAM Processor RAM address Checksum","Category":"US1PC2118150","I/O words":"30 I/32 O","Standards":"UL 508","Number of port":"1 Modbus RS232 twisted pair redundant copper 2 Modbus Plus RS485 twisted pair redundant copper","lifecycle_stage":"eol_hot","Range of Product":"Modicon Quantum automation platform","Relative Humidity":"95 % without condensation","Transmission Rate":"1 Mbit/s","Operating altitude":"<= 16404.2 ft (5000 m)","Nbr. of units in pkg.":"1","Power dissipation in W":"4 W","Bus current requirement":"780 mA","Product or Component Type":"DIO head-end adaptor","Ambient Air Temperature for Storage":"-40...185 °F (-40...85 °C)","Resistance to electromagnetic fields":"9.1 V/m (10 V/m) 80...2000 MHz IEC 801-3","Ambient Air Temperature for Operation":"32...140 °F (0...60 °C)","Resistance to electrostatic discharge":"4 kV contact IEC 801-2 8 kV on air IEC 801-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4,805.49 – $5,139.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1e3b0ee80bc9600ed4503ddf5f0ee496.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/140NOM21200/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/140NOM21200","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/140NOM21200 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}