{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CJ2H-CPU66","brand":"Omron","brandSlug":"omron","productSlug":"CJ2H-CPU66","canonicalUrl":"https://aoctrl.com/omron/CJ2H-CPU66","factsUrl":"https://aoctrl.com/api/mcp/products/CJ2H-CPU66","rawCanonicalId":null},"summary":{"shortDescription":"Omron CJ2H Series CJ2H-CPU66 PLC CPU, 352K word memory, RS-232C and USB communications, DIN rail mount.","salesMarkdown":"Omron lists the CJ2H-CPU66 as active in their current portfolio. For a new control cabinet or a spare CPU on the shelf, this is a line item you can freeze into a BOM without obsolescence anxiety. CX-One software supports the full CJ2H range — same programming environment, same tag database. DIN rail mount with no display — fits a sealed panel where LCD screens fog or fail. RS-232C and USB on the front; the USB port handles program download without a serial adapter. Operating range is 0 to 55 °C, which covers a ventilated enclosure in a steam tunnel or under a drying hood. Approvals include CE, cULus, Lloyd, and NK — the Lloyd and NK marks are not common on PLC CPUs; they tell you this part survives the steam and the chemicals in a marine or process environment.","metaTitle":"Omron CJ2H-CPU66 Controller, 352K Words, RS-232C/USB","metaDescription":"CJ2H-CPU66 PLC CPU in active production. 352K word memory, 40-module expandability, DIN rail. Battery backup retains programs through a mill outage. CE, cULus, Lloyd, NK approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"title":"CJ2H-CPU66","Series":"CJ2H","Weight":"0.419 lb (190.06 g)","Package":"Box","Features":"Battery Backup","Software":"CX-One","Expandable":"40 Modules (3 Racks) Max","Memory Size":"352K Words","description":"CONTROL LOGIC 150K PROG 352K","Display Type":"No Display","Mounting Type":"DIN Rail","Communications":"RS-232C, USB","Approval Agency":"CE, cULus, Lloyd, NK","lifecycle_stage":"mature","Operating Temperature":"0°C~55°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3,040.38 – $6,177.26","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What are the key memory and expansion specs?","answer":"The CJ2H-CPU66 offers 352K words of program memory and supports up to 40 modules across three racks. Battery backup protects the program and retained data during power loss."},{"question":"What approvals does the CJ2H-CPU66 carry?","answer":"It is approved under CE, cULus, Lloyd's Register, and Nippon Kaiji Kyokai (NK). The Lloyd and NK marine certifications are relevant for installations in wet, corrosive, or shipboard environments."},{"question":"How is the CJ2H-CPU66 programmed?","answer":"Omron's CX-One software suite supports the CJ2H series. The CPU has a USB port for direct program download; RS-232C is available for legacy HMIs or serial protocol gateways."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CJ2H-CPU66","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/CJ2H-CPU66 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}}