{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7231-5QD30-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7231-5QD30-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7231-5QD30-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7231-5QD30-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1200, analog input module SM 1231, 4 thermocouple inputs, -40 to 70 °C, IP20, 24 V DC, CE, FM.","salesMarkdown":"The 6ES7231-5QD30-0XB0: The four analog inputs cover the full set of standard thermocouples—J, K, T, E, R, S, N, and C—plus the Russian-standard TXK/XK(L). That range handles most process temperature applications from furnace monitoring to cryogenic storage. The ±80 mV voltage span matches the output of Type R/S (noble-metal) couples at high temperature. The 1.5 W typical power consumption keeps the backplane budget well within the S7-1200 CPU's available 24 V capacity. Diagnostic alarms and wire-break detection are built in. When a TC opens or a measurement goes out of range, the module reports via the backplane—no extra wiring. That cuts fault-finding time on a line down to minutes. Mounts directly on an S7-1200 DIN rail, 45 mm wide, 100 mm tall, 75 mm deep. The IP20 enclosure is suited for clean, dry control panels. CE marking and FM approval are confirmed; no other certs appear on record. The module is self-contained—no external power supply beyond the backplane 24 V DC needed.","metaTitle":"Siemens 6ES7231-5QD30-0XB0 4-Channel TC Module, -40 to 70°C","metaDescription":"Active production 4-input thermocouple module for S7-1200. Accepts J/K/T/E/R/S/N/C types, ±80 mV range. CE, FM approved. RFQ for BOM commitment.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Analog Input Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"75 mm","Width":"45 mm","title":"6ES7231-5QD30-0XB0","Alarms":"Yes","Height":"100 mm","Type C":"Yes","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type N":"Yes","Type R":"Yes","Type S":"Yes","Type T":"Yes","CE mark":"Yes","Plastic":"Yes","Resistance":"Yes","Wire-break":"Yes","FM approval":"Yes","description":"***Spare part*** SIMATIC S7-1200, Analog input, SM 1231 TC, 4 AI thermocouples","Thermocouple":"Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV","For Maintenance":"Yes","Operation, max.":"1 080 hPa","Operation, min.":"795 hPa","Parameterizable":"Yes","Weight, approx.":"180 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","RCM (formerly C-TICK)":"Yes","Resistance thermometer":"No","IP degree of protection":"IP20","Number of analog inputs":"4; Thermocouples","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","Type TXK/TXK(L) to GOST":"Yes","For Status Of The Inputs":"Yes","Required Front Connector":"Yes","Current consumption, typ.":"40 mA","Vertical Installation, Max.":"45 °C","Vertical Installation, Min.":"0 °C","Horizontal Installation, Max.":"55 °C","Horizontal Installation, Min.":"0 °C","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","SO2 at RH < 60% without condensation":"S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free","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.":"15 bit; + sign","Technical unit for temperature measurement adjustable":"Degrees Celsius/degrees Fahrenheit","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 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=61838&mlfb=6ES7231-5QD30-0XB0"},"ai":{"faq":[{"question":"What is the operating temperature range?","answer":"-40 °C to 70 °C ambient, covering standard industrial environments and cold storage applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7231-5QD30-0XB0","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/6ES7231-5QD30-0XB0 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}}