{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CS1G-CPU42H","brand":"Omron","brandSlug":"omron","productSlug":"CS1G-CPU42H","canonicalUrl":"https://aoctrl.com/omron/CS1G-CPU42H","factsUrl":"https://aoctrl.com/api/mcp/products/CS1G-CPU42H","rawCanonicalId":null},"summary":{"shortDescription":"Omron CS1G series, CS1G-CPU42H, control logic CPU with 64K words program memory, RS-232C and USB communications, backplane mounted, CE/cULus/Lloyd/NK approved.","salesMarkdown":"## CPU capacity and expansion limits The CS1G-CPU42H holds 64K words of program memory. Expansion tops out at 30 modules across two racks. Mounts on the CS1 backplane, same footprint as the higher-end CS1G units. RS-232C and USB ports are physically identical across the CS1G family, so a swap from a 42H to a 45H doesn't rewire the panel — just watch the module count if the build exceeds 30. Product status is active per Omron's lifecycle records; no end-of-life announcement on file. Carries CE, cULus, Lloyd's Register, and NK (Korean Register of Shipping) approvals — covers European, North American, and marine applications without separate certification runs. ## Sourcing and fit for BOM line Active part, no known PCN. Available for immediate quoting against your BOM requirement. Approvals (CE, cULus, Lloyd, NK) already listed on the spec plate — no additional certification paperwork needed for most industrial and marine panels.","metaTitle":"Omron CS1G-CPU42H PLC CPU, 64K words, 2 racks, RS-232C/USB","metaDescription":"Omron CS1G-CPU42H PLC CPU in CS1G series, 64K words memory, expandable to 30 modules with 2 racks, backplane mount, RS-232C + USB, active production. For BOM fit and sourcing, requ","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"title":"CS1G-CPU42H","Series":"CS1G","Package":"Bulk","Software":"CX-One","Expandable":"30 Modules (2 Racks) Max","Memory Size":"64K Words","description":"CONTROL LOGIC CPU 64K PROG","Mounting Type":"Backplane","Communications":"RS-232C, USB","Approval Agency":"CE, cULus, Lloyd, NK","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$513.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c42a3b59869e077945dabc1a8c5a87d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What approvals does the CS1G-CPU42H carry?","answer":"CE, cULus, Lloyd's Register, and NK (Korean Register of Shipping)."},{"question":"Can the CS1G-CPU42H drop into a panel designed for the CS1G-CPU45H?","answer":"Physically yes — same backplane and communications ports. However, the 42H is limited to 30 modules and two racks, so the panel must not require more than that. Rewiring is not needed if the module count fits."},{"question":"What software is used to program the CS1G-CPU42H?","answer":"CX-One, the Omron integrated software suite. Programs written for other CS1G CPUs are compatible as long as they fit within 64K words."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CS1G-CPU42H","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/CS1G-CPU42H 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}}