{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7231-0HC22-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7231-0HC22-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7231-0HC22-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7231-0HC22-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-200 EM 231 analog input module, 6ES7231-0HC22-0XA0, 4 differential inputs, 0-10V DC, 12-bit converter.","salesMarkdown":"## What this spare part fits The Siemens 6ES7231-0HC22-0XA0 is the EM 231 analog input module for the S7-22X CPU family — a spare part, not a current-production expansion module. It provides 4 differential analog inputs, each configurable for 0-10V DC, with a 12-bit converter and a conversion time of 250 µs per channel. The 12-bit resolution (with overrange, including sign) means the module digitizes the analog signal into 4096 steps, plus sign for bipolar ranges. The input resistance is 10 MΩ across all voltage and current ranges, so it loads the sensor minimally. The destruction limits are 30 V for voltage inputs and 32 mA for current inputs — exceeding those damages the input stage. The module draws up to 20 mA from the backplane bus at 5 V DC and up to 60 mA from the load voltage L+ (without load). Power loss is 2 W typical. The lifecycle stage is current, meaning Siemens still lists it as an active spare part for the S7-200 platform.","metaTitle":"Siemens 6ES7231-0HC22-0XA0 Analog Input Module, 4 AI, 12-bit","metaDescription":"Siemens 6ES7231-0HC22-0XA0 EM 231 analog input module for S7-22X CPUs. 4 differential inputs, 0-10V DC, 12-bit converter. Sourced to order; confirm BOM fit.","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","Height":"80 mm","Current":"Yes","Voltage":"Yes","0 to +5 V":"Yes","0 to +10 V":"Yes","0 to 20 mA":"Yes","Resistance":"No","-5 V to +5 V":"Yes","Thermocouple":"No","Shielded, Max.":"100 m; to the sensor","Bipolar Signals":"-32 000 to +32 000","Parameterizable":"No","Weight, approx.":"183 g","lifecycle_stage":"current","-2.5 V to +2.5 V":"Yes","Power loss, typ.":"2 W","Unipolar Signals":"0 to 32 000","Plug-in I/O terminals":"No","Resistance thermometer":"No","Number of analog inputs":"4; Difference","Common mode voltage, max.":"12 V","external fault EXTF (red)":"Yes","Input resistance (0 to 5 V)":"10 MΩ","Input resistance (0 to 10 V)":"10 MΩ","Conversion time (per channel)":"250 µs","Input resistance (0 to 20 mA)":"10 MΩ","Input resistance (-5 V to +5 V)":"10 MΩ","from backplane bus 5 V DC, max.":"20 mA","Potential separation analog inputs":"No","Input resistance (-2.5 V to +2.5 V)":"10 MΩ","from load voltage L+ (without load), max.":"60 mA","Resolution with overrange (bit including sign), max.":"12 bit","Interference voltage suppression for interference frequency f1 in Hz":"40 dB, DC to 60 V for interference frequency 50 / 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"32 mA","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"30 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$205.11 – $334.00","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=492086&mlfb=6ES7231-0HC22-0XA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7231-0HC22-0XA0/alternatives.json"},"ai":{"faq":[{"question":"Is 6ES7231-0HC22-0XA0 compatible with S7-200 CPU?","answer":"Yes, the EM 231 module is designed for S7-22X CPUs only. It connects via the backplane bus and provides 4 differential analog inputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7231-0HC22-0XA0","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/6ES7231-0HC22-0XA0 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}}