{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7312-5AC81-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7312-5AC81-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7312-5AC81-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7312-5AC81-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 CPU 312 IFM for expanded temperature range, 6ES7312-5AC81-0AB0, central processing unit with 10 DI/6 DO, 6 KB working memory, integrated 24V DC power supply, EOL lifecycle stage.","salesMarkdown":"## CPU 312 IFM — Integrated I/O for Harsh Environments The Siemens 6ES7312-5AC81-0AB0 is a SIMATIC S7-300 CPU 312 IFM designed for expanded temperature range applications, packing 10 digital inputs and 6 digital outputs directly on the CPU along with a counter and frequency measurement function. With 6 KB of working memory and an integrated 24V DC power supply, this CPU handles compact control tasks without needing a separate I/O module for basic digital signals — useful in enclosures where space is tight. ## What the Integrated I/O Means for Your Panel The 10 digital inputs and 6 digital outputs are wired through a single 20-pin front connector, which simplifies the I/O wiring compared to a CPU plus separate I/O module — the 20-pin connector carries both input and output field wiring. The expanded temperature range variant means this CPU is rated for environments outside the standard 0–60 °C envelope, so it fits in unheated enclosures or near process equipment where ambient temperatures climb.","metaTitle":"Siemens 6ES7312-5AC81-0AB0 CPU 312 IFM, EOL","metaDescription":"Siemens 6ES7312-5AC81-0AB0 SIMATIC S7-300 CPU 312 IFM with expanded temperature range, 10 DI/6 DO, 6 KB memory. EOL lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=383734&mlfb=6ES7312-5AC81-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7312-5AC81-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What are the exact specifications of Siemens 6ES7312-5AC81-0AB0?","answer":"It is a SIMATIC S7-300 CPU 312 IFM for expanded temperature range, with 10 digital inputs, 6 digital outputs, a 20-pin front connector, integrated counter and frequency measurement, 6 KB working memory, and an integrated 24V DC power supply."},{"question":"Where can I buy 6ES7312-5AC81-0AB0 and what is the price?","answer":"This part is in EOL lifecycle stage and is sourced to order. Availability and pricing are confirmed at quote time against your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7312-5AC81-0AB0","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/6ES7312-5AC81-0AB0 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}}