{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7241-1AH32-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7241-1AH32-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7241-1AH32-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7241-1AH32-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1200 serial communication module, RS232C, Modbus RTU master/slave, 24 V DC, IP20, 70 °C max, -40 °C min.","salesMarkdown":"The Siemens 6ES7241-1AH32-0XB0 is a single-port RS232C (V.24) serial communication module for the S7-1200 family, supporting both Modbus RTU master and slave protocols. It draws up to 200 mA from the 5 V DC backplane bus and runs on a 24 V DC rated supply, with a typical power loss of 1.1 W. Pressure tolerance from 795 hPa to 1080 hPa covers most non-sealed enclosures. IP20 protection means it lives inside a panel. Handles standard Modbus addressing from 1 to 49,999, supports up to 247 slaves per network segment (practical limit 32 devices per segment without repeaters), transmits telegrams up to 1 kbyte. Cable length limited to 10 m. Given its active status, lead times are predictable through normal Siemens supply. ## Compliance & Approvals Carries CE, cULus, CSA, FM, KC, Marine, and RCM (C-TICK) approvals. UL and FM approvals are documented. Diagnostics functions are built in, including a status output for outputs, which simplifies fault isolation during commissioning or line-down events.","metaTitle":"Siemens 6ES7241-1AH32-0XB0 RS232C Modbus Module, 70 °C","metaDescription":"Siemens 6ES7241-1AH32-0XB0 RS232C Modbus RTU master/slave module. Rated 70 °C max, -40 °C min, 24 V DC, IP20. cULus, CE, FM, CSA, Marine. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Communication Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","ASCII":"Yes; Available as library function","Depth":"75 mm","Width":"30 mm","cULus":"Yes","Height":"100 mm","Parity":"No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0)","CE mark":"Yes","Freeport":"Yes","FM approval":"Yes","KC approval":"Yes","UL approval":"Yes","Address area":"1 through 49 999 (Standard Modbus addressing)","CSA approval":"Yes","Marine approval":"Yes","Operation, max.":"1 080 hPa","Operation, min.":"795 hPa","Weight, approx.":"150 g","lifecycle_stage":"current","MODBUS RTU slave":"Yes","Power loss, typ.":"1.1 W","Rated value (DC)":"24 V","Fall height, max.":"0.3 m; five times, in product package","Modbus RTU master":"Yes","Bits per character":"7 or 8","Cable length, max.":"10 m","Interfaces/bus type":"RS 232C (V.24)","Number of stop bits":"1 (Standard), 2","Diagnostics function":"Yes","Number of interfaces":"1","RCM (formerly C-TICK)":"Yes","Telegram length, max.":"1 kbyte","Number of slaves, max.":"247; slave numbers 1 through 247, per MODBUS network segment maximum 32 devices, additional repeaters needed to expand the network to maximum configuration","IP degree of protection":"IP20","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","Current consumption, max.":"200 mA; From backplane bus 5 V DC","For Status Of The Outputs":"Yes","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-20 °C","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-20 °C","Permissible Temperature Change":"5°C to 55°C, 3°C / minute","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Operation at 25 °C without condensation, max.":"95 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.00 – $253.48","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6d8bdd486d66051a6d73ce58a9762190.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=75966&mlfb=6ES7241-1AH32-0XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7241-1AH32-0XB0/alternatives.json"},"ai":{"faq":[{"question":"What are the key temperature ratings?","answer":"The module operates from -40 °C to 70 °C, with a derated maximum of 50 °C for vertical installation."},{"question":"What approvals does it carry?","answer":"It carries CE, cULus, CSA, FM, KC, Marine, and RCM (C-TICK) approvals, plus UL."},{"question":"What is the maximum number of Modbus slaves supported?","answer":"Up to 247 slaves per network, with a segment limit of 32 devices before repeaters are needed."},{"question":"What is the power draw from the backplane?","answer":"It draws up to 200 mA from the 5 V DC backplane bus, with a typical power loss of 1.1 W."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7241-1AH32-0XB0","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/6ES7241-1AH32-0XB0 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}}