{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7223-1BL21-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7223-1BL21-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7223-1BL21-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7223-1BL21-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-200 EM223, 6ES7223-1BL21-0XA0, digital I/O expansion module, 16 inputs 24 VDC sink/source, 16 outputs 24 VDC source 0.75 A/point.","salesMarkdown":"## What the 0.75 A per point means for your load wiring The 6ES7223-1BL21-0XA0 is a SIMATIC S7-200 EM223 expansion module delivering 16 digital inputs (24 V DC, sink/source configurable) and 16 digital outputs (24 V DC, source type) rated 0.75 A per point. That per-channel ceiling covers most solenoid valves, contactor coils, and indicator banks directly without an interposing relay — but a multi-point group driving a single load needs the total draw kept under the module's backplane current budget. ## Compatibility — S7-22X CPUs only This module is built for the S7-22X CPU family only — it connects via the side-expansion bus and is not electrically or mechanically compatible with the S7-1200 or S7-1500 form factor. The 16 inputs accept both sink and source field wiring (PNP or NPN sensors) without a rewire; the 16 source outputs switch 24 V DC loads referenced to the same supply rail. The 6ES7223-1BL21-0XA0 carries a current lifecycle stage.","metaTitle":"Siemens 6ES7223-1BL21-0XA0 EM223 16DI 16DO, 0.75 A/point","metaDescription":"Siemens SIMATIC S7-200 EM223 digital I/O module, 16 inputs 24 VDC sink/source, 16 outputs 24 VDC source 0.75 A/point. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Part #":"6ES7223-1BL21-0XA0","Weight":"0.13 kgs","Category":"PLCs and Accessories","Sub Category":"PLC Expansion Modules","Top Category":"PLCs & HMIs","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$217.17","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4244e6711ca4776ca4f58c20846e85d2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=372601&mlfb=6ES7223-1BL21-0XA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7223-1BL21-0XA0/alternatives.json"},"ai":{"faq":[{"question":"Is 6ES7223-1BL21-0XA0 compatible with all S7-200 CPU models?","answer":"The module is designated for S7-22X CPUs only. It connects via the side-expansion bus and is not compatible with S7-1200 or S7-1500 platforms."},{"question":"What is the output current per point of 6ES7223-1BL21-0XA0?","answer":"Each of the 16 source outputs is rated 0.75 A at 24 V DC. This covers direct switching of most solenoid valves, contactor coils, and indicator loads without an interposing relay."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7223-1BL21-0XA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7223-1BL21-0XA0 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}}