{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7338-7UH00-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7338-7UH00-0AC0","canonicalUrl":"https://aoctrl.com/siemens/6ES7338-7UH00-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7338-7UH00-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SM 338 ultrasonic position decoder module, 6ES7338-7UH00-0AC0, EOL hot lifecycle stage, measures position via start/stop interface with Balluff or MTS ultrasonic measuring devices.","salesMarkdown":"## SM 338 ultrasonic position decoder for S7-300 racks The Siemens 6ES7338-7UH00-0AC0 SM 338 is an ultrasonic position decoder module for the S7-300 family. It reads position from ultrasonic measuring devices that use a start/stop interface, such as those from Balluff or MTS. This module decodes the time-of-flight signal from the ultrasonic transducer into a position value the PLC can process — no separate counter card or external converter needed for that interface type. ## EOL hot — sourcing window narrows For a replacement path, the buyer needs to evaluate the current S7-1200 or S7-1500 technology modules that accept incremental encoder or SSI inputs, and map the ultrasonic sensor interface accordingly.","metaTitle":"6ES7338-7UH00-0AC0 Siemens SM 338 Ultrasonic Position","metaDescription":"Siemens 6ES7338-7UH00-0AC0 SM 338 ultrasonic position decoder module. EOL hot lifecycle stage.","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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=179503&mlfb=6ES7338-7UH00-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7338-7UH00-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Is the 6ES7338-7UH00-0AC0 still available for purchase?","answer":"The module is in eol_hot lifecycle stage, meaning production has ended or is ending. Availability is confirmed at quote time."},{"question":"What is the replacement for 6ES7338-7UH00-0AC0?","answer":"A technology migration to a current S7-1200 or S7-1500 technology module that accepts incremental encoder or SSI inputs is the typical replacement path, with the ultrasonic sensor interface mapped accordingly."},{"question":"Does the 6ES7338-7UH00-0AC0 work with Balluff or MTS ultrasonic sensors?","answer":"Yes. The SM 338 is specifically designed to measure position via ultrasonic measuring devices with a start/stop interface, such as those from Balluff or MTS."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7338-7UH00-0AC0","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/6ES7338-7UH00-0AC0 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}}