{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CJ1M-CPU13","brand":"Omron","brandSlug":"omron","productSlug":"CJ1M-CPU13","canonicalUrl":"https://aoctrl.com/omron/CJ1M-CPU13","factsUrl":"https://aoctrl.com/api/mcp/products/CJ1M-CPU13","rawCanonicalId":null},"summary":{"shortDescription":"Omron CJ1M-CPU13, CJ1 series, CPU unit, 20K program steps, 32K words data memory, RS-232C, DIN-rail mount, battery backup.","salesMarkdown":"## Memory budget and scan cycle constraints The CJ1M-CPU13 allocates 20K program steps and 32K words of data memory — the data area is the tighter constraint for applications with large recipe tables or array-based sequencing. With the 32K-word ceiling, expect to budget roughly 8–10K words for I/O mapping and system flags before the application logic starts, leaving about 22K words for user data. ## I/O expansion ceiling for system sizing One rack supports up to 20 modules — that is the physical limit before a second CPU rack or a CJ1W-IC101 inter-rack connection is needed. The RS-232C port handles programming downloads and peripheral connections (operator interface or serial barcode reader), but it is not a fieldbus master — an expansion module is required for DeviceNet, Profibus, or EtherNet/IP. DIN-rail mounting per EN 50022 — the unit snaps onto the standard 35 mm rail and occupies one CPU slot width in the CJ1 backplane. No display on the CPU — status is read from the RUN/ERR/COMM LEDs on the front bezel. ## Lifecycle and sourcing — obsolete, not a dead end Omron lists the CJ1M-CPU13 as obsolete — no official successor part number is published for this exact CPU variant. No stock-holding claim — quantities are lot-specific.","metaTitle":"Omron CJ1M-CPU13 CJ1 PLC CPU, 20K Prog 32K Data, Obsolete","metaDescription":"Omron CJ1M-CPU13 CJ1-series PLC CPU with 20K program steps, 32K words data memory, RS-232C, DIN-rail mount. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Series":"CJ1","Weight":"11 lbs (5 kg)","Package":"Bulk","Features":"Battery Backup","Software":"CX-One","Expandable":"20 Modules (1 Rack) Max","Memory Size":"32K Words","Display Type":"No Display","Mounting Type":"DIN Rail","Communications":"RS-232C","lifecycle_stage":"eol_hot","Operating Temperature":"0°C~55°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$292.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/CJ1M-CPU13/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CJ1M-CPU13","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/CJ1M-CPU13 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}