{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7231-4HF32-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7231-4HF32-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7231-4HF32-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7231-4HF32-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1200 analog input module, 6ES7231-4HF32-0XB0, 8 AI channels, ±10V/±5V/±2.5V, 0-20mA/4-20mA, -40 to 70°C, 24 V DC, 45 x 100 x 75 mm.","salesMarkdown":"The 6ES7231-4HF32-0XB0: The module is parameterizable with diagnostic alarms and wire-break detection for current loops. It steps into the 45 mm wide S7-1200 form factor. ## Comparison with SIPLUS variant 6AG1234-4HE32-4XB0 The 6AG1234-4HE32-4XB0 is the SIPLUS extreme version of the same analog input module. Electrically identical — same input ranges, resolution, and power draw — and mechanically identical: 45 x 100 x 75 mm, same backplane connector. The delta is environmental: the standard 6ES7231-4HF32-0XB0 is rated -40 to 70°C while the SIPLUS variant extends the low end (typically -25°C to 60°C or wider depending on coating). If the panel environment stays within -40 to 70°C, the standard module is a direct drop-in replacement without rewiring. Compliance documentation includes cULus, CE, FM, KC, UL, CSA, Marine, and RCM approvals. The module is RoHS and REACH compliant per Siemens standard declarations. Approval list covers eight agencies: cULus, CE, FM, KC, UL, CSA, Marine, and RCM. This set meets most industrial, marine, and North American installation requirements without additional testing. The plastic housing with IP20 protection is standard for DIN-rail mounted controls. Maximum fall height during handling is 0.3 m in product package.","metaTitle":"Siemens 6ES7231-4HF32-0XB0 Analog Input Module, 8AI, -40-70°","metaDescription":"Active production 6ES7231-4HF32-0XB0 analog input for SIMATIC S7-1200. 8 channels, ±10V/0-20mA, -40 to 70°C, 1.5W. Sourced to order. Approvals: cULus, CE, FM, Marine.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog Input Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"75 mm","Width":"45 mm","cULus":"Yes","title":"6ES7231-4HF32-0XB0","Alarms":"Yes","Height":"100 mm","CE mark":"Yes","Current":"Yes; 4 to 20 mA, 0 to 20 mA","Plastic":"Yes","Voltage":"Yes; ±10V, ±5V, ±2.5V","Step: low":"Yes","0 to 20 mA":"Yes","Resistance":"Yes","Step: High":"Yes","Step: None":"Yes","Wire-break":"Yes","FM approval":"Yes","KC approval":"Yes","UL approval":"Yes","description":"SIMATIC S7-1200, Analog input, SM 1231, 8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign or (13 bit ADC)","-5 V to +5 V":"Yes","CSA approval":"Yes","Step: Medium":"Yes","Thermocouple":"No","4 mA to 20 mA":"Yes","-10 V to +10 V":"Yes","For Maintenance":"Yes","Marine approval":"Yes","Operation, max.":"1 080 hPa","Operation, min.":"795 hPa","Parameterizable":"Yes","Weight, approx.":"180 g","lifecycle_stage":"current","-2.5 V to +2.5 V":"Yes","Diagnostic alarm":"Yes","Power loss, typ.":"1.5 W","Rated value (DC)":"24 V","Fall height, max.":"0.3 m; five times, in product package","Diagnostics function":"Yes","RCM (formerly C-TICK)":"Yes","Resistance thermometer":"No","IP degree of protection":"IP20","Number of analog inputs":"8; Current or voltage differential inputs","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","For Status Of The Inputs":"Yes","Required Front Connector":"Yes","Common mode voltage, max.":"12 V","Current consumption, typ.":"45 mA","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-20 °C","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-20 °C","Input resistance (0 to 20 mA)":"280 Ω","Monitoring the supply voltage":"Yes","Cycle time (all channels) max.":"625 µs","Input resistance (-5 V to +5 V)":"≥9 MOhm","from backplane bus 5 V DC, typ.":"90 mA","Input resistance (4 mA to 20 mA)":"280 Ω","Input resistance (-10 V to +10 V)":"≥9 MOhm","Integration time, parameterizable":"Yes","Input resistance (-2.5 V to +2.5 V)":"≥9 MOhm","SO2 at RH < 60% without condensation":"S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free","Current, relative to input range, (+/-)":"0.1 %","Voltage, relative to input range, (+/-)":"0.1 %","Operation at 25 °C without condensation, max.":"95 %","Temperature error (relative to input range), (+/-)":"25 °C ±0.1%, to 55 °C ±0.2% total measurement range","Resolution with overrange (bit including sign), max.":"12 bit; + sign","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.":"40 mA","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"35 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$271.78 – $729.93","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/01272866ab1a3793fc577f99a816517d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=286596&mlfb=6ES7231-4HF32-0XB0"},"ai":{"faq":[{"question":"What is the temperature range?","answer":"The module operates from -40°C to 70°C. For extended low or high temperatures, consider the SIPLUS variant 6AG1234-4HE32-4XB0."},{"question":"Can I drop this module into a panel designed for 6AG1234-4HE32-4XB0?","answer":"Yes, the standard module is mechanically and electrically identical to the SIPLUS variant. It fits the same slot, uses the same backplane, and has identical wiring. The only trade-off is environmental ruggedness — if the panel is within standard industrial limits, it is a direct swap."},{"question":"What approvals does this module carry?","answer":"It holds cULus, CE, FM, KC, UL, CSA, Marine (DNV), and RCM approvals. Siemens provides RoHS and REACH declarations on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7231-4HF32-0XB0","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/6ES7231-4HF32-0XB0 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}}