{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CS1W-CORT21","brand":"Omron","brandSlug":"omron","productSlug":"CS1W-CORT21","canonicalUrl":"https://aoctrl.com/omron/CS1W-CORT21","factsUrl":"https://aoctrl.com/api/mcp/products/CS1W-CORT21","rawCanonicalId":null},"summary":{"shortDescription":"Omron CS1W series, Communications Module, CS1W-CORT21, Backplane mount, Screw Terminal, 0°C~55°C, CE/CSA/UL.","salesMarkdown":"## Backplane communications module for CS1/CJ1 racks The Omron CS1W-CORT21 is a Communications Module that mounts into a CS1 or CJ1 series PLC backplane, adding a dedicated serial or protocol interface without consuming a CPU slot. It carries CE, CSA, and UL approvals, so it passes panel-level certification for machinery shipped into North American and European markets. Rated for 0°C to 55°C ambient — the cabinet ventilation must keep the interior below that ceiling, typical for a sealed IP54 enclosure with a fan or heat exchanger. ## Lifecycle — last-time-buy window open The CS1W-CORT21 is flagged eol_hot — the manufacturer has issued end-of-life notice, meaning the last-time-buy window is active and the part will not be restocked once current inventory clears. For a BOM that requires this exact module, secure the quantity now through the remaining supply channel; once exhausted, the only path is surplus or a system migration to a newer Omron communications platform. ## Field wiring and integration Termination is screw terminal — field wiring lands directly on the module without a separate breakout board, saving a DIN-rail position. The module includes a display for local status indication, useful during commissioning to confirm link state without a programming laptop.","metaTitle":"Omron CS1W-CORT21 Communications Module, Backplane, EOL","metaDescription":"Omron CS1W-CORT21 Communications Module for CS1/CJ1 PLC backplane. CE/CSA/UL. EOL lifecycle — sourced to order against RFQ. Confirm BOM position.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Type":"Communications Module","Series":"CS1W","Weight":"0.26 lb (117.93 g)","Package":"Bulk","Features":"Display","Mounting Type":"Backplane","Approval Agency":"CE, CSA, UL","lifecycle_stage":"eol_hot","Termination Style":"Screw Terminal","Operating Temperature":"0°C~55°C","For Use With/Related Products":"CJ Series"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/CS1W-CORT21/alternatives.json"},"ai":{"faq":[{"question":"Does the CS1W-CORT21 work with the Omron CJ1 series?","answer":"Yes — the CS1W-CORT21 is listed for use with CJ Series PLCs, meaning it mounts in a CJ1 backplane and communicates over the same backplane bus as the CPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CS1W-CORT21","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/CS1W-CORT21 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}}