{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7357-4AH03-3AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7357-4AH03-3AE0","canonicalUrl":"https://aoctrl.com/siemens/6ES7357-4AH03-3AE0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7357-4AH03-3AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300, firmware L incl. config. package for FM357-2, for positioning and path control of stepper and servo motors, form of delivery: memory card and CD.","salesMarkdown":"The 6ES7357-4AH03-3AE0: The part comprises a memory card and CD containing firmware L and the configuration package for positioning and path control of stepper and servo motors on the SIMATIC S7-300 platform. ## Sourcing a discontinued firmware package Because this is an eol_hot item, it is sourced through independent distribution and surplus channels. If you need to replace the FM357-2 firmware in an existing S7-300 rack, verify the CPU firmware revision and the stepper/servo drive interface.","metaTitle":"Siemens 6ES7357-4AH03-3AE0 FM357-2 Firmware L, EOL Hot","metaDescription":"Siemens 6ES7357-4AH03-3AE0 firmware L config package for FM357-2. EOL hot stage. Sourced to order against RFQ. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$822.96","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5c534f7f7539741ec795ae5bc0663b95.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=501096&mlfb=6ES7357-4AH03-3AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7357-4AH03-3AE0/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for 6ES7357-4AH03-3AE0?","answer":"No official replacement order code is listed on the record for this firmware L configuration package. For a functional replacement, you would need to assess the FM357-2 module itself and the specific stepper/servo control requirements."},{"question":"Is 6ES7357-4AH03-3AE0 compatible with S7-300 CPUs?","answer":"Yes, this firmware package is designed for the FM357-2 positioning module, which is part of the SIMATIC S7-300 family. It supports positioning and path control of stepper and servo motors when used with compatible S7-300 CPUs."},{"question":"How can I order 6ES7357-4AH03-3AE0?","answer":"This EOL hot item is sourced to order against your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7357-4AH03-3AE0","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/6ES7357-4AH03-3AE0 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}}