{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"140NOM21200C","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"140NOM21200C","canonicalUrl":"https://aoctrl.com/schneider/140NOM21200C","factsUrl":"https://aoctrl.com/api/mcp/products/140NOM21200C","rawCanonicalId":null},"summary":{"shortDescription":"Schneider 140NOM21200C Plc Expansion Modules — now discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.","salesMarkdown":"## Overview The 140NOM21200C is a Schneider Modicon Quantum automation platform DIO head-end adaptor, order code 140NOM21200C, handling 30 input and 32 output words of I/O data. It carries one Modbus RS232 port and two Modbus Plus RS485 twisted-pair redundant copper ports, all running at 1 Mbit/s. The module draws 4.0 W, includes conformal coating (Humiseal 1A33), and is certified to UL 508. As a DIO head-end adaptor, the 140NOM21200C sits at the front of a distributed I/O drop, converting the Modbus Plus fieldbus into a local backplane for Quantum I/O modules. The 30 input words and 32 output words define the total data payload the adaptor can exchange with the controller — enough for a medium-sized drop of digital and analog modules. The dual Modbus Plus ports provide redundant cabling paths; a break on one twisted pair does not drop the drop. The separate Modbus RS232 port is available for local commissioning or connection to a serial HMI or gateway. ## Applications This DIO head-end adaptor is used in Modicon Quantum control systems to connect remote I/O racks over Modbus Plus, a deterministic fieldbus common in process plants, water treatment facilities, and material handling lines. The redundant twisted-pair ports suit installations where cable fault tolerance is required without a separate media redundancy protocol.","metaTitle":"Schneider 140NOM21200C Modicon Quantum DIO Head-End Adaptor","metaDescription":"Schneider Modicon Quantum 140NOM21200C DIO head-end adaptor, 30 I/32 O words, 2 Modbus Plus RS485 ports, 1 Modbus RS232, 1 Mbit/s, 4.0 W, conformal coated, UL 508.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Checks":"RAM RAM address Processor 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)","Protective treatment":"Conformal coating Humiseal 1A33","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":"$8,136.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bc8634271503ba4a574713230e1ee5f6.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/140NOM21200C/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/140NOM21200C","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/140NOM21200C 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}}