{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1331-7SF00-4AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1331-7SF00-4AB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1331-7SF00-4AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1331-7SF00-4AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS SM 331 analog input module, 8 AI, thermocouple/RTD, -40 to 70 °C, 24 VDC, 20-pin front connector, UL File E239877.","salesMarkdown":"## Extended-temperature analog acquisition The 6AG1331-7SF00-4AB0: Eight channels accept thermocouples (types B, E, J, K, L, N, R, S, T, U) or resistance thermometers (Pt 100, Pt 200, Ni 100), configurable per channel. The module draws 0.6 W typ from the 24 VDC backplane supply, so the thermal budget inside a crowded IP20 enclosure stays manageable even when the cabinet sits next to a steam line. ## Channel configuration and wiring constraints The 20-pin front connector (ordered separately) terminates all eight analog inputs plus the shield connection. For thermocouple inputs the maximum shielded cable run is 50 m; for RTD or resistance measurements the limit extends to 200 m, provided the cable capacitance and loop resistance stay within the module's input stage compliance. The module reports group fault via the red SF LED and supports overrange and diagnostic functions — a commissioning engineer can map the channel status directly into the safety CPU's fault word without external signal conditioners.","metaTitle":"Siemens 6AG1331-7SF00-4AB0 SIPLUS SM 331, 8 AI, -40 to 70 °C","metaDescription":"Siemens SIPLUS SM 331 analog input module, 8 channels, thermocouple/RTD, -40 to 70 °C, 24 VDC, UL approved. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"120 mm","Width":"40 mm","title":"6AG1331-7SF00-4AB0","Height":"125 mm","Ni 100":"Yes","Pt 100":"Yes","Pt 200":"Yes","Type B":"Yes","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type L":"Yes","Type N":"Yes","Type R":"Yes","Type S":"Yes","Type T":"Yes","Type U":"Yes","CE mark":"Yes","Current":"No","Voltage":"Yes","EN 50155":"No","Overrange":"Yes","Resistance":"Yes","KC approval":"Yes","UL approval":"Yes; File E239877","description":"SIPLUS S7-300 SM 331 AI 20-pole based on 6ES7331-7SF00-0AB0 with conformal coating, 0…+60 °C, without PTB approval","Thermocouple":"Yes","Shielded, Max.":"200 m; TC: 50 m","Weight, approx.":"210 g","lifecycle_stage":"current","Power loss, typ.":"0.6 W","Rated value (DC)":"24 V","Diagnostics function":"Yes","Group error SF (red)":"Yes","EAC (formerly Gost-R)":"Yes","RCM (formerly C-TICK)":"Yes","Resistance thermometer":"Yes","Number of analog inputs":"8; 8x thermocouples; 4x RTD thermoresistors","Po (power output), max.":"41.4 mW","Required Front Connector":"20-pin","Input resistance (Ni 100)":"10 MΩ","Input resistance (Pt 100)":"10 MΩ","Input resistance (Pt 200)":"10 MΩ","Input resistance (Type B)":"10 MΩ","Input resistance (Type E)":"10 MΩ","Input resistance (Type K)":"10 MΩ","Input resistance (Type L)":"10 MΩ","Input resistance (Type N)":"10 MΩ","Input resistance (Type R)":"10 MΩ","Input resistance (Type S)":"10 MΩ","Input resistance (Type T)":"10 MΩ","Input resistance (Type U)":"10 MΩ","Input resistance (type J)":"10 MΩ","Uo (no-load voltage), max.":"5.9 V","Module for Ex(i) protection":"Yes","Channel fault indicator F (red)":"Yes","Diagnostic information readable":"Yes","from backplane bus 5 V DC, max.":"120 mA","Io (short-circuit current), max.":"28.8 mA","Integration time, parameterizable":"Yes; 2.5 to 100 ms","Wire-break in signal transmitter cable":"Yes","Co (permissible external capacity), max.":"43 µF","Short-circuit of the signal encoder cable":"Yes","Installation altitude above sea level, max.":"5 000 m","Lo (permissible external inductivity), max.":"40 mH","For Current Measurement As 2-Wire Transducer":"Yes","For Current Measurement As 4-Wire Transducer":"Yes","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.":"16 bit; 10 bit to 15 bit + sign","Resistance thermometer, relative to input range, (+/-)":"0.1 %","Interference voltage suppression for interference frequency f1 in Hz":"10 to 400 Hz","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)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/40ed06659b253208f8e17823e14e4163.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=426870&mlfb=6AG1331-7SF00-4AB0"},"ai":{"faq":[{"question":"Is 6AG1331-7SF00-4AB0 the same as 6ES7331-7SF00-0AB0?","answer":"No. The 6AG1331-7SF00-4AB0 is the SIPLUS extended-temperature variant of the standard 6ES7331-7SF00-0AB0. Functionally the channel count, input types, and backplane interface are identical, but the environmental qualification differs."},{"question":"Where can I buy 6AG1331-7SF00-4AB0?","answer":"No stock-holding claim is made here; the procurement posture is quoted per BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1331-7SF00-4AB0","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/6AG1331-7SF00-4AB0 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}}