{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7231-7PB22-0XA8","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7231-7PB22-0XA8","canonicalUrl":"https://aoctrl.com/siemens/6ES7231-7PB22-0XA8","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7231-7PB22-0XA8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-200 CN analog input EM 231, 2 AI for Pt100/Ni100/Resistance, 16-bit resolution, spare part.","salesMarkdown":"## What this module is — and what it is for The Siemens 6ES7231-7PB22-0XA8 is an analog input module from the SIMATIC S7-200 CN family, specifically the EM 231 spare part that works only with the S7-22X CPU. It carries two analog inputs designed for resistance thermometers (Pt100, Pt200, Pt500, Pt1000, Pt10000, Ni100, Ni120, Ni1000, Cu10) and plain resistance measurement up to 150, 300, or 600 ohm. Resolution reaches 16 bit with overrange (15 bit + sign), giving 0.1 °C or 0.1 °F per step on temperature types. ## Key ratings that govern fit The module fits the S7-200 CN backplane and draws 1.8 W from the bus, plus 1 mW for the sensor excitation — a light load that leaves headroom for other modules in the rack. Physical footprint is 71.2 mm wide, 62 mm deep, and 80 mm tall, consistent with the standard EM form factor. Critically, this part carries CE approval only; no UL or CSA marks are on file, so if your panel requires those for the local inspection, plan for a documented risk assessment or a separate compliance path.","metaTitle":"Siemens 6ES7231-7PB22-0XA8 Analog Input, 2 AI RTD","metaDescription":"SIMATIC S7-200 CN analog input EM 231, spare part. 2 AI for Pt100/Ni100/Resistance, 16-bit resolution, current production. Width 71.2 mm, depth 62 mm. Only CE approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Analog Input Modules"],"specifications":{"Depth":"62 mm","Width":"71.2 mm","title":"6ES7231-7PB22-0XA8","Height":"80 mm","Current":"No","Voltage":"No","Resistance":"Yes","description":"*** spare part *** SIMATIC S7-200 CN analog input EM 231, only for S7-22X CPU, 2 AI, Pt100/200/500/1000/10000, NI100/120/1000, CU10, Resistance 150/300/600 ohm, 15 bit+sign this S7-200 CN product only has CE approval","Thermocouple":"No","lifecycle_stage":"current","Power loss, typ.":"1.8 W; Sensor: 1 mW","Resistance thermometer":"Yes","Number of analog inputs":"2","Resolution with overrange (bit including sign), max.":"16 bit; Temperature 0.1 °C / 0.1 °F"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$236.00 – $506.39","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e1b047c88d7a611c8aaabc85bee0854.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=99111&mlfb=6ES7231-7PB22-0XA8"},"ai":{"faq":[{"question":"What are the physical dimensions of this module?","answer":"Width is 71.2 mm, depth is 62 mm, height is 80 mm, matching the standard S7-200 EM series footprint."},{"question":"What compliance documentation does this brand provide for this module?","answer":"The product listing states CE approval only. No UL, CSA, or other marks are mentioned."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7231-7PB22-0XA8","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/6ES7231-7PB22-0XA8 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}}