{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7241-1CH32-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7241-1CH32-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7241-1CH32-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7241-1CH32-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens CM 1241 RS422/485 communication module, 6ES7241-1CH32-0XB0, for S7-1200, Modbus RTU master/slave, USS, ASCII, 24 VDC, 1.1 W, -40 to 70 °C, IP20.","salesMarkdown":"## What serial protocols does this module actually run? The 6ES7241-1CH32-0XB0 is a CM 1241 RS422/485 communication module that drops into the S7-1200 rack and handles Modbus RTU as both master and slave, plus USS and ASCII via library function blocks. The RS 422 / 485 (X.27) interface gives you one port with a max cable length of 1000 m, addressing up to 247 slaves on a Modbus segment (though the network segment limit is 32 devices before you need repeaters). ## Does it fit the existing S7-1200 slot and panel? Power comes from the 24 VDC backplane — no separate supply needed. Typical power loss is 1.1 W, so it won't cook the adjacent modules even in a densely packed rail. ## Lifecycle and sourcing — still a current part Storage range is even wider: 660 to 1080 hPa.","metaTitle":"Siemens 6ES7241-1CH32-0XB0 CM 1241 RS422/485, Modbus RTU","metaDescription":"Siemens CM 1241 RS422/485 communication module for S7-1200. Supports Modbus RTU master/slave and USS. Active production, sourced to order. -40 to 70 °C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Communication Modules"],"specifications":{"USS":"Yes; Available as library function","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.":"155 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.":"1 000 m","Interfaces/bus type":"RS 422 / 485 (X.27)","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.":"220 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":"$102.87 – $253.48","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/38f14eddd0d81ea56bfb39d835c7b198.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=59426&mlfb=6ES7241-1CH32-0XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7241-1CH32-0XB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7241-1CH32-0XB0","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/6ES7241-1CH32-0XB0 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}}