{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7331-7HF00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7331-7HF00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7331-7HF00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7HF00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SM 331 analog input module, 6ES7331-7HF00-0AB0, 8 analog inputs, 52 µs per channel conversion time, 24 V DC rated supply.","salesMarkdown":"## 8 analog inputs, 52 µs conversion — what it means on the line The Siemens 6ES7331-7HF00-0AB0 SM 331 module gives you 8 analog inputs with a basic conversion time of 52 µs per channel — fast enough to catch 50 Hz ripple on a 4–20 mA loop without aliasing. It accepts voltage ranges from ±1 V up to ±10 V and current ranges from 0–20 mA, 4–20 mA, and ±20 mA, with input resistance of 50 Ω on current loops and 100 kΩ on the ±10 V range. Rated supply is 24 V DC with reverse-polarity protection; the module draws up to 100 mA from the 5 V backplane bus and dissipates 1.5 W typical. The module measures 40 mm wide, 125 mm high, and 117 mm deep — it occupies one slot in a S7-300 rack and requires a 20-pin front connector (sold separately).","metaTitle":"Siemens 6ES7331-7HF00-0AB0 SM 331 Analog Input Module, 8 AI","metaDescription":"Siemens 6ES7331-7HF00-0AB0 SM 331 analog input module, 8 inputs, 52 µs/ch conversion, 24 V DC. End-of-life — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Analog Input Modules"],"specifications":{"Depth":"117 mm","Width":"40 mm","Height":"125 mm","Current":"Yes","Voltage":"Yes","0 to 20 mA":"Yes","1 V to 5 V":"Yes","1 V to 10 V":"Yes","-1 V to +1 V":"Yes","-5 V to +5 V":"Yes","4 mA to 20 mA":"Yes","-10 V to +10 V":"Yes","Shielded, Max.":"200 m","Weight, approx.":"230 g","lifecycle_stage":"eol_hot","-20 mA to +20 mA":"Yes","Diagnostic alarm":"Yes","Power loss, typ.":"1.5 W","Rated value (DC)":"24 V","Limit value alarm":"Yes","Between The Channels":"No","Group error SF (red)":"Yes","Isolation tested with":"500 V DC","For Voltage Measurement":"Yes","Number of analog inputs":"8","Required Front Connector":"20-pin","Basic conversion time (ms)":"52 µs per channel","Reverse polarity protection":"Yes","Input resistance (0 to 20 mA)":"50 Ω","Input resistance (1 V to 5 V)":"100 kΩ","Input resistance (1 V to 10 V)":"100 kΩ","Diagnostic information readable":"Yes","Input resistance (-1 V to +1 V)":"10 MΩ","Input resistance (-5 V to +5 V)":"100 kΩ","from backplane bus 5 V DC, max.":"100 mA","Input resistance (4 mA to 20 mA)":"50 Ω","Input resistance (-10 V to +10 V)":"100 kΩ","Integration time, parameterizable":"Yes","Input resistance (-20 mA to +20 mA)":"50 Ω","Between The Channels And Backplane Bus":"Yes","Current, relative to input range, (+/-)":"0.2 %","Voltage, relative to input range, (+/-)":"0.25 %","from load voltage L+ (without load), max.":"50 mA","For Current Measurement As 2-Wire Transducer":"Yes","For Current Measurement As 4-Wire Transducer":"Yes","Resolution with overrange (bit including sign), max.":"14 bit","Between The Channels And The Power Supply Of The Electronics":"Yes","Interference voltage suppression for interference frequency f1 in Hz":"none / 400 / 60 / 50 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"40 mA","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"20 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=524613&mlfb=6ES7331-7HF00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7HF00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the pinout for Siemens 6ES7331-7HF00-0AB0?","answer":"The module uses a 20-pin front connector. The pinout assigns each of the 8 analog inputs to a pair of pins (signal and return), with the remaining pins for 24 V DC supply, ground, and shield connection. Refer to the Siemens SM 331 manual for the exact terminal assignment."},{"question":"How can I order 6ES7331-7HF00-0AB0 or check stock?","answer":"We source the 6ES7331-7HF00-0AB0 to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7331-7HF00-0AB0","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/6ES7331-7HF00-0AB0 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}}