{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"140CPU67261","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"140CPU67261","canonicalUrl":"https://aoctrl.com/schneider/140CPU67261","factsUrl":"https://aoctrl.com/api/mcp/products/140CPU67261","rawCanonicalId":null},"summary":{"shortDescription":"Schneider 140CPU67261 Plc Expansion Modules — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The 140CPU67261: It supports up to 31 remote I/O stations over S908 or Ethernet Quantum remote I/O, and integrates an Ethernet router with single-mode fiber optic interconnection for primary-secondary PLC links up to 16 km. Schneider discontinued the 140CPU67261 on 2018-07-09. Compared to the 140CPU67861, the 140CPU67261 has 3072 kB internal RAM versus 11264 kB, and expandable program memory of 7168 kB versus 8 MB file storage. Both support hot standby and process control, but the 140CPU67861 provides more headroom for larger programs and data logging. The 140CPU67261 is the right choice when the BOM matches the lower memory budget and the panel is already wired for the Quantum backplane.","metaTitle":"Schneider 140CPU67261 Modicon Quantum Unity processor, discontinued","metaDescription":"Schneider 140CPU67261 Modicon Quantum Unity processor: 266 MHz, 3072 kB RAM, hot standby, Ethernet router, discontinued since 2018-07-09. RFQ for surplus.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Checks":"Hot standby Process control","Category":"18150-QUANTUM CONTROLLERS,HSBY,COMM.","Standards":"HazLoc","Clock frequency":"266 MHz","Number of racks":"2 - local","Number of slots":"16 10 6 2 4","Switch Function":"Key switch memory port on/off","System overhead":"0.2 ms fast task 1 ms master task","lifecycle_stage":"eol_hot","Local signalling":"1 LED (green) for Ethernet activity (COM) 1 LED (red) for Ethernet collision","Range of Product":"Modicon Quantum automation platform","Memory description":"Expandable 7168 kB - program with PCMCIA card Expandable 8 MB - file storage with PCMCIA card Internal RAM 3072 kB - 1536 kB for data","Analogue I/O number":"500 inputs, 500 outputs - distributed - per network Modbus Plus Unlimited (31 drops of 28 slots max) - ethernet remote I/O 1984 inputs,1984 outputs - remote 0 - local - forbidden in Hot Standby application","Discrete I/O number":"31744 inputs, 31744 outputs - remote 8000 inputs, 8000 outputs - distributed - per network Modbus Plus Unlimited (31 drops of 28 slots max) - ethernet remote I/O 0 - local - forbidden in Hot Standby application","Mode of Transmission":"Single mode","Application structure":"1 periodic fast task - forbidden in Hot Standby application 128 I/O interrupt tasks - forbidden in Hot Standby application 128 interrupt tasks - forbidden in Hot Standby application 32 timer interrupt tasks - forbidden in Hot Standby application 4 auxiliary tasks - forbidden in Hot Standby application 1 cyclic/periodic master task -","Communication Service":"Ethernet router","Electrical connection":"1 female connector SUB-D 9 for connecting to the Modbus Plus network 1 connector RJ45 for connecting Modbus bus 1 connector LC (single mode fiber optic) for interconnecting primary and secondary PLCs up to 16 km","Nbr. of units in pkg.":"1","Bus current requirement":"2760 mA","Application specific I/O":"Serial link Accurate time stamping High-speed interrupt inputs Counter","Product or Component Type":"Unity processor","Integrated connection type":"1 Modbus Plus 1 Modbus 1 USB 1 optic fibre Hot Standby","Number of optional modules":"6 Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max)","Number of remote I/O station":"31 - 2 S908 remote I/O 31 - 2 ethernet Quantum remote I/O 31 - 2 ethernet X80 remote I/O","Maximum number of connections":"1 USB 2 AS-Interface - distributed 4 AS-Interface - remote 6 Ethernet TCP/IP - local 6 Modbus Plus - local 6 Profibus DP - local 1 Modbus RS232/485 Modbus/ASCII)","Number of instructions per ms":"10.28 Kinst/ms 100 % Boolean 10.07 Kinst/ms 65 % Boolean and 35 % numerical","Number of distributed I/O station":"63 1 3 Modbus Plus"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11,127.00 – $20,606.22","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6891fb44880557061b2006d9bd094eb0.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/140CPU67261/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/140CPU67261","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/140CPU67261 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}}