{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"140CPU67861C","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"140CPU67861C","canonicalUrl":"https://aoctrl.com/schneider/140CPU67861C","factsUrl":"https://aoctrl.com/api/mcp/products/140CPU67861C","rawCanonicalId":null},"summary":{"shortDescription":"Schneider 140CPU67861C Modicon Quantum — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The 140CPU67861C is a Modicon Quantum Unity Hot Standby processor running at 266 MHz with 3072 kB internal RAM, designed for redundant process control over a single-mode fiber optic link reaching up to 16 km between primary and secondary PLCs. It carries conformal coating (Humiseal 1A33) for harsh environments, supports HazLoc certification, and integrates an Ethernet router protocol with Modbus Plus, Modbus, and USB connections. An RFQ confirms available quantity and lead time for this exact build code. Compared to the 140CPU67261C, the 140CPU67861C has 3072 kB internal RAM versus 11264 kB, and its program memory is expandable to 7168 kB via PCMCIA card, while the 140CPU67261C has no program expansion slot. The 140CPU67861C also includes conformal coating, which the 140CPU67261C lacks.","metaTitle":"Schneider 140CPU67861C Modicon Quantum Unity Hot Standby processor, 266 MHz, coa","metaDescription":"Schneider 140CPU67861C Modicon Quantum Unity Hot Standby processor: 266 MHz, 3072 kB RAM, single-mode fiber link up to 16 km, conformal coated, discontinued since 2018.","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 6 2 10 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","Protective treatment":"Conformal coating Humiseal 1A33","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":"High-speed interrupt inputs Counter Serial link Accurate time stamping","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":"$29,926.26","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cbd60fba1ffb6b6e043554f73816e643.pdf","sourceUrl":"https://www.se.com/ie/en/product/140CPU67861C/unity-hot-standby-processor-with-single-mode-ethernet-11-mb-266-mhz-coated/","alternativesUrl":"https://aoctrl.com/api/mcp/products/140CPU67861C/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/140CPU67861C","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/140CPU67861C 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}}