{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7321-1BL80-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7321-1BL80-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7321-1BL80-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7321-1BL80-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 SM 321 digital input module, 6ES7321-1BL80-0AA0, 32 optically isolated inputs at 24 VDC, expanded temperature range, 40-pin front connector, end-of-life.","salesMarkdown":"## 32 inputs, expanded temperature range, end-of-life The Siemens 6ES7321-1BL80-0AA0 is a SIMATIC S7-300 SM 321 digital input module providing 32 optically isolated inputs at 24 VDC, designed for the expanded temperature range variant of the S7-300 family. ## Input ratings and derating The 32 digital inputs are rated for signal '1' from 13 to 30 V, with a typical current draw of 7 mA per input at the rated 24 VDC. At ambient temperatures up to 40 °C, all 32 inputs are available; above 40 °C up to 60 °C, the module derates to 16 inputs maximum. Input filtering is specified with a minimum turn-on time of 1.2 ms and a maximum of 4.8 ms from signal '0' to '1'. It requires a 40-pin front connector for field wiring, and the backplane bus draws a maximum of 15 mA from the 5 V DC rail. Optocoupler isolation is provided between the channels and the backplane bus, with 500 V DC tested isolation.","metaTitle":"Siemens 6ES7321-1BL80-0AA0 Digital Input Module, 32 DI, EOL","metaDescription":"Siemens SIMATIC S7-300 SM 321 digital input module, 32 inputs at 24 VDC, expanded temperature range. End-of-life — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"Depth":"120 mm","Width":"40 mm","Height":"125 mm","2-Wire Sensor":"Yes","For Signal \"0\"":"-30 to +5 V","For Signal \"1\"":"13 to 30V","Shielded, Max.":"1 000 m","Weight, approx.":"260 g","lifecycle_stage":"eol_hot","Power loss, typ.":"6.5 W","Rated value (DC)":"24 V","Unshielded, Max.":"600 m","up to 40 °C, max.":"32","up to 60 °C, max.":"16","At \"0\" To \"1\", Max.":"4.8 ms","At \"0\" To \"1\", Min.":"1.2 ms","For Signal \"1\", Typ.":"7 mA","Isolation tested with":"500 V DC","Number of digital inputs":"32","Required Front Connector":"40-pin","from backplane bus 5 V DC, max.":"15 mA","Between The Channels, In Groups Of":"16","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Between The Channels And Backplane Bus":"Yes; Optocoupler","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$312.42","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=381976&mlfb=6ES7321-1BL80-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7321-1BL80-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7321-1BL80-0AA0","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/6ES7321-1BL80-0AA0 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}}