{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7231-4HF50-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7231-4HF50-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7231-4HF50-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7231-4HF50-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SM 1231 analog input module, 6ES7231-4HF50-0XB0, 8 analog inputs, 14-bit ADC, voltage and current ranges, S7-1200 G2 series.","salesMarkdown":"## Active production, S7-1200 G2 analog front end The 6ES7231-4HF50-0XB0 is an active-production SM 1231 analog input module from Siemens, part of the S7-1200 G2 family. It provides 8 analog inputs with a 14-bit ADC, configurable for voltage ranges (±10 V, ±5 V, ±2.5 V) or current loops (0–20 mA / 4–20 mA). ## Input configuration and field wiring Each of the 8 channels can be independently set via the engineering software for voltage or current mode. The 14-bit resolution gives a raw count of 0–16384 over the selected span — enough for process signals like 4–20 mA transmitters or ±10 V speed references. The module snaps onto the S7-1200 G2 DIN-rail backplane. The group code is R132 and the product group is 4508, which are Siemens internal classification codes used for logistics and spare-parts ordering. ## Compliance and documentation The module is export-controlled under ECCN EAR99H and AL: N, meaning no special export license is needed for most destinations. Under REACH Article 33, Siemens declares lead (CAS 7439-92-1) above 0.1% w/w in the product — this triggers a duty to inform downstream users but does not restrict normal industrial use.","metaTitle":"Siemens 6ES7231-4HF50-0XB0 SM 1231 Analog Input, 8 AI","metaDescription":"Siemens 6ES7231-4HF50-0XB0 SM 1231 analog input module, 8 AI, 14-bit ADC, active production. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog Input Modules"],"specifications":{"title":"6ES7231-4HF50-0XB0","Group Code":"R132","description":"SIMATIC S7-1200 G2: SM 1231 analog input, 8 AI; inputs: 8x AI 14 bit ADC (+/-10 V, +/-5 V, +/-2.5 V or 0-20 mA/4-20 mA)","Product Group":"4508","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SM 1231 analog input modules","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : EAR99H","Packaging dimensions (L x W x H)":"150.00 x 47.00 x 110.00 mm","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cfdbc95c9c431e7b6d9efb53109833d5.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/6ES7231-4HF50-0XB0?tree=CatalogTree"},"ai":{"faq":[{"question":"What input types does 6ES7231-4HF50-0XB0 support?","answer":"The module supports 8 analog inputs configurable for ±10 V, ±5 V, ±2.5 V, 0–20 mA, or 4–20 mA, with a 14-bit ADC resolution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7231-4HF50-0XB0","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/6ES7231-4HF50-0XB0 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}}