{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7357-4BH03-3AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7357-4BH03-3AE0","canonicalUrl":"https://aoctrl.com/siemens/6ES7357-4BH03-3AE0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7357-4BH03-3AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300, firmware LX incl. config package for FM357-2, for positioning and path control of stepper and servo motors, form of delivery: memory card and CD, lifecycle eol_hot.","salesMarkdown":"## What this firmware package does on the S7-300 rack The 6ES7357-4BH03-3AE0 is a firmware LX delivery package — a memory card and CD — for the Siemens FM357-2 positioning module on the S7-300 platform. It provides the configuration and runtime firmware for multi-axis positioning and path control of stepper and servo motors. This is not a hardware I/O module; it is the software layer that turns the FM357-2 into a motion controller. The form of delivery — memory card plus CD — means the firmware is pre-loaded onto the card and the CD holds the configuration package for the engineering station. ## Lifecycle reality — eol_hot and what it means for procurement For a line that depends on the FM357-2 firmware, this status flags a last-time-buy window that has already closed. ## What is actually in the box The delivery contents are a memory card carrying the firmware LX and a CD with the configuration package. The firmware LX is the licensed runtime for the FM357-2; the configuration package is the engineering tooling needed to set up axis parameters, cam profiles, and path programs. Because this is firmware tied to a specific hardware module (FM357-2), it is not a general-purpose S7-300 firmware update. It applies only to the positioning and path-control function of that module, for stepper and servo motor axes.","metaTitle":"Siemens 6ES7357-4BH03-3AE0 FM357-2 Firmware LX, EOL Hot","metaDescription":"Siemens 6ES7357-4BH03-3AE0 SIMATIC S7-300 firmware LX with config package for FM357-2, stepper/servo positioning. Lifecycle: eol_hot. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"title":"6ES7357-4BH03-3AE0","description":"SIMATIC S7-300,FIRMWARE LX INCL. CONFIG. PACKAGE FOR FM357-2, FOR POSITIONING AND PATH CONTROL OF STEPPER AND SERVO MOTORS, FORM OF DELIVERY: MEMORY CARD AND CD","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,431.29","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/37f59a807382070ccfe926705c78121a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=456700&mlfb=6ES7357-4BH03-3AE0"},"ai":{"faq":[{"question":"What does the 6ES7357-4BH03-3AE0 firmware package contain?","answer":"It contains firmware LX on a memory card plus a configuration package on CD for the SIMATIC S7-300 FM357-2 positioning module. It is used for positioning and path control of stepper and servo motors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7357-4BH03-3AE0","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/6ES7357-4BH03-3AE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}