{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1231-4HF32-4XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1231-4HF32-4XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1231-4HF32-4XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1231-4HF32-4XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1231-4HF32-4XB0 SIPLUS S7-1200 analog input module, 8 differential inputs, -40 to 70 °C, 24 V DC, 625 µs cycle.","salesMarkdown":"The 6AG1231-4HF32-4XB0 is the SIPLUS extended-temperature version of the S7-1200 8-channel analog input module. It accepts current (4 to 20 mA, 0 to 20 mA) and voltage (±10 V, ±5 V, ±2.5 V) differential inputs with a common-mode limit of 12 V. Cycle time across all channels is 625 µs. Diagnostics include wire-break detection and configurable alarms per channel. Rated operating range spans -40 °C to 70 °C, compared to the standard 0 °C to 55 °C of the 6ES7231-4HF32-0XB0. This makes it the direct choice for ambient-conditioned panels or outdoor cabinets. ## Functional equivalent: 6ES7231-4HF32-0XB0 The standard version 6ES7231-4HF32-0XB0 is electrically and mechanically identical but limited to 0 °C to 55 °C. For a BOM line requiring -40 °C operation or extended life in high-ambient environments, the SIPLUS variant is the qualified part. No other changes in wiring, front connector assignment, or configuration are needed. ## Integration notes This module mounts on an S7-1200 rail and connects via the required front connector (not included). The 8 differential inputs share a common reference; wire-break diagnostics are parameterizable per channel. Supply voltage 24 V DC. Power consumption is 1.5 W typical. Current draw from the backplane is 45 mA.","metaTitle":"Siemens 6AG1231-4HF32-4XB0 SIPLUS S7-1200 8AI, -40..70°C","metaDescription":"Siemens 6AG1231-4HF32-4XB0 SIPLUS analog input module, 8 differential inputs, 4 to 20 mA / ±10V, -40 to 70°C, 625 µs cycle, current production. Sourced to order.","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","title":"6AG1231-4HF32-4XB0","Alarms":"Yes","Height":"100 mm","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","description":"SIPLUS S7-1200 SM 1231 8AI based on 6ES7231-4HF32-0XB0 with conformal coating, -20…+60 °C, 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","Step: Medium":"Yes","Thermocouple":"No","-10 V to +10 V":"Yes","For Maintenance":"Yes","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","Resistance thermometer":"No","IP degree of protection":"IP20","Number of analog inputs":"8; Current or voltage differential inputs","For Status Of The Inputs":"Yes","Required Front Connector":"Yes","Common mode voltage, max.":"12 V","Current consumption, typ.":"45 mA","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 (-10 V to +10 V)":"≥9 MOhm","Integration time, parameterizable":"Yes","Input resistance (-2.5 V to +2.5 V)":"≥9 MOhm","Current, relative to input range, (+/-)":"0.1 %","Voltage, relative to input range, (+/-)":"0.1 %","Installation altitude above sea level, max.":"5 000 m","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","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","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)","Resolution with overrange (bit including sign), max.":"12 bit; + sign","Resistant to commercially available coolants and lubricants":"Yes; Incl. diesel and oil droplets in the air","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","Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04":"Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)","Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$377.19 – $1,010.29","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a20ea9ef2d2fa65242ed0b61d970716b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=552320&mlfb=6AG1231-4HF32-4XB0"},"ai":{"faq":[{"question":"Can this module replace a 6ES7231-4HF32-0XB0 in an existing panel?","answer":"Yes. The SIPLUS variant is a drop-in replacement — same dimensions, same wiring, same configuration. The only difference is the wider temperature range, which does not restrict operation at standard temperatures."},{"question":"What is the minimum and maximum ambient temperature for this module?","answer":"Operates from -40 °C to 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1231-4HF32-4XB0","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/6AG1231-4HF32-4XB0 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}}