{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1231-5QF32-4XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1231-5QF32-4XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1231-5QF32-4XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1231-5QF32-4XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS S7-1200 SM 1231 analog input module, 4 thermocouple inputs, -40 to 70 °C, 24 VDC, IP20.","salesMarkdown":"## Four thermocouple inputs, wide temperature range The Siemens 6AG1231-5QF32-4XB0 is a SIPLUS variant of the SM 1231 analog input module for the S7-1200 system, providing four analog inputs specifically for thermocouple measurement. It covers thermocouple types J, K, T, E, R, S, B, N, C, and TXK/XK(L) per GOST, with a voltage measurement range of ±80 mV. The integrating measurement principle and built-in cold-junction compensation make it a direct fit for temperature loops in process and HVAC applications. ## Rated for the cold and the heat That -40 °C floor means it can live in a refrigerated warehouse or an unheated enclosure in a northern climate without a heater. The 70 °C ceiling covers most cabinet interiors near motors or ovens, though the 1.5 W typical power dissipation means the module itself adds little heat to the enclosure. ## Diagnostics and wiring The module reports wire-break and diagnostic alarms, and the supply voltage is monitored on-board. It requires a front connector (sold separately) and draws 40 mA from the 24 VDC backplane supply. The 45 mm width fits a standard S7-1200 rack slot; the IP20 rating means it belongs in a clean, dry enclosure, not on the machine frame.","metaTitle":"Siemens 6AG1231-5QF32-4XB0 Analog Input Module, 4 TC","metaDescription":"Siemens 6AG1231-5QF32-4XB0 analog input module with 4 thermocouple inputs, supports types J, K, T, E, R, S, B, N, C. Operating range -40 to 70 °C.","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":"6AG1231-5QF32-4XB0","Alarms":"Yes","Height":"100 mm","Type B":"Yes","Type C":"Yes","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type N":"Yes","Type R":"Yes","Type S":"Yes","Type T":"Yes","Current":"No","Plastic":"Yes","Voltage":"No","Resistance":"No","Wire-break":"Yes","description":"SIPLUS S7-1200 SM 1231 TC 8 AI based on 6ES7231-5QF32-0XB0 with conformal coating, -20…+60 °C, analog input, SM 1231 TC 8 AI thermocouples","Thermocouple":"Yes; J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV","For Maintenance":"Yes","Parameterizable":"Yes","Weight, approx.":"220 g","lifecycle_stage":"current","-80 mV to +80 mV":"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; Can be read out","Measurement principle":"integrating","Resistance thermometer":"No","IP degree of protection":"IP20","Number of analog inputs":"4; Thermocouples","Type TXK/TXK(L) to GOST":"Yes","For Status Of The Inputs":"Yes","Required Front Connector":"Yes","Current consumption, typ.":"40 mA","Monitoring the supply voltage":"Yes","Common mode interference, min.":"120 dB","from backplane bus 5 V DC, typ.":"80 mA","Integration time, parameterizable":"No","Input resistance (-80 mV to +80 mV)":"≥1 MOhm","Installation altitude above sea level, max.":"5 000 m","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","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.":"15 bit; + sign","Technical unit for temperature measurement adjustable":"Degrees Celsius/degrees Fahrenheit","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":"85 dB at 50 / 60 / 400 Hz","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"±35 V","Repeat accuracy in steady state at 25 °C (relative to output range), (+/-)":"0.5 %","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":"$1,266.87","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/29876343f33872f3d8baed8c552c6557.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=552875&mlfb=6AG1231-5QF32-4XB0"},"ai":{"faq":[{"question":"Where can I buy 6AG1231-5QF32-4XB0 and how is it quoted?","answer":"Submit an RFQ with your target quantity and delivery window."},{"question":"What is the difference between 6AG1231-5QF32-4XB0 and 6ES7231-5QF32-0XB0?","answer":"The SIPLUS version also includes conformal coating for protection against condensation and aggressive atmospheres."},{"question":"What thermocouple types does 6AG1231-5QF32-4XB0 support?","answer":"The module supports types J, K, T, E, R, S, B, N, C, and TXK/XK(L) per GOST. The voltage input range is ±80 mV, covering all common industrial thermocouple signals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1231-5QF32-4XB0","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/6AG1231-5QF32-4XB0 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}}