{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CS1W-BC102","brand":"Omron","brandSlug":"omron","productSlug":"CS1W-BC102","canonicalUrl":"https://aoctrl.com/omron/CS1W-BC102","factsUrl":"https://aoctrl.com/api/mcp/products/CS1W-BC102","rawCanonicalId":null},"summary":{"shortDescription":"Omron CS1W-BC102 Backplane, 10-slot module-only, for CS1 Series PLCs, Bulk package.","salesMarkdown":"## 10-slot backplane for CS1 racks The Omron CS1W-BC102 is a 10-slot module-only backplane that mounts into the CS1 Series rack. It provides the passive bus and mechanical support for up to ten CS1-series I/O, CPU, or special-function modules — no power supply or CPU is integrated into the backplane itself. The backplane is the structural spine of the rack: it carries the backplane bus between modules and provides the DIN-rail or panel-mounting footprint. The 10-slot count means you can fit a CPU plus nine I/O or communication modules in a single chassis, which is typical for mid-size machine control where you need a mix of discrete, analog, and network slices. ## Compatibility and slot count The CS1W-BC102 is designed for the CS1 Series PLC family. It accepts any CS1-series module that fits the rack form factor. Slot count directly governs the I/O capacity of the chassis. With 10 slots, you can populate a CPU in slot 0 and still have nine slots for field I/O or network interfaces, which is enough for a machine with a couple of remote I/O drops and a few analog loops. If you need more than 10 slots, you either cascade a second rack via the CS1W-BI0xx bus interface module or step up to the CS1D redundant chassis. For a backplane that is part of a mature PLC platform, the eol_hot flag is a signal to plan a migration path if you are specifying a new design. The CS1 Series has been succeeded by the CJ2 and NX/NJ platforms, but for existing installed base the CS1W-BC102 remains available.","metaTitle":"Omron CS1W-BC102 Backplane, 10-Slot, for CS1 Series PLCs","metaDescription":"Omron CS1W-BC102 backplane, 10-slot module-only, for CS1 Series PLCs. Active production, sourced to order. Check compatibility with CS1D CPUs.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Series":"CS1W","Package":"Bulk","Accessory Type":"Backplane","lifecycle_stage":"eol_hot","For Use With/Related Products":"CS1 Series"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$438.15 – $921.54","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c42a3b59869e077945dabc1a8c5a87d9.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/CS1W-BC102/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for Omron CS1W-BC102?","answer":"No official direct replacement order code is listed for the CS1W-BC102. For new designs, consider migrating to the CJ2 or NX/NJ platforms which use different backplane architectures. For existing CS1 racks, the CS1W-BC102 remains available as an active spare part."},{"question":"Is CS1W-BC102 compatible with CS1D CPUs?","answer":"The CS1W-BC102 is designed for the CS1 Series, not the CS1D redundant series. CS1D CPUs require the CS1D-BCxx backplane which has a different bus architecture for dual-CPU redundancy. The CS1W-BC102 will not mechanically or electrically accept a CS1D CPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CS1W-BC102","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-BC102 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}}