{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7331-7KF02-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7331-7KF02-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7331-7KF02-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7KF02-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-300 analog input module, 8 channels, 6ES7331-7KF02-0AB0, supports thermocouples, RTDs, voltage, current, and resistance inputs, 40 x 125 x 117 mm.","salesMarkdown":"## 8-channel analog input for S7-300 racks The Siemens 6ES7331-7KF02-0AB0 is an 8-channel analog input module for the S7-300 programmable logic controller family. It accepts thermocouple, RTD, voltage, current, and resistance signals, making it a universal front-end for process and machine analog I/O. ## Thermocouple and RTD input coverage This module directly reads thermocouple types E, J, K, N, and L, covering the most common industrial temperature ranges for exhaust gas, furnace, and process monitoring. RTD support includes Pt100 and Ni100 standard curves. For current-loop signals, the module accepts 0 to 20 mA and 4 mA to 20 mA ranges, plus bipolar voltage spans from -10 V to +10 V and -5 V to +5 V. Resistance measurement is supported from 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms. The module measures 40 mm wide, 125 mm high, and 117 mm deep, fitting a single S7-300 slot width on the standard DIN rail. The compact 40 mm width allows dense channel packing in multi-rack configurations.","metaTitle":"Siemens 6ES7331-7KF02-0AB0 Analog Input Module, 8 AI","metaDescription":"Siemens 6ES7331-7KF02-0AB0 analog input module for S7-300. 8 channels, supports thermocouples (E, J, K, N, L), RTDs (Pt100, Ni100), voltage, current","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Analog Input Modules"],"specifications":{"Cu 10":"No","Depth":"117 mm","Width":"40 mm","Height":"125 mm","Ni 100":"Yes; Standard","Ni 120":"No","Ni 200":"No","Ni 500":"No","Pt 100":"Yes; Standard","Pt 200":"No","Pt 500":"No","Type B":"No","Type C":"No","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type L":"Yes","Type N":"Yes","Type R":"No","Type S":"No","Type T":"No","Type U":"No","Current":"Yes","Ni 1000":"No","Pt 1000":"No","Voltage":"Yes","0 to +10 V":"No","0 to 20 mA":"Yes","1 V to 5 V":"Yes","LG-Ni 1000":"No","Resistance":"Yes","1 V to 10 V":"No","-1 V to +1 V":"Yes","-5 V to +5 V":"Yes","Thermocouple":"Yes","0 To 150 Ohms":"Yes","0 To 300 Ohms":"Yes","0 To 600 Ohms":"Yes","4 mA to 20 mA":"Yes","-10 V to +10 V":"Yes","0 To 6000 Ohms":"No","Shielded, Max.":"200 m; 50 m at 80 mV and thermocouples","Parameterizable":"Yes","Weight, approx.":"250 g","lifecycle_stage":"eol_hot","-10 mA to +10 mA":"Yes","-2.5 V to +2.5 V":"Yes","-20 mA to +20 mA":"Yes","-50 mV to +50 mV":"No","-80 mV to +80 mV":"Yes","Diagnostic alarm":"Yes; Parameterizable, channels 0 and 2","Power loss, typ.":"1 W","Rated value (DC)":"24 V","For Thermocouples":"Type E, J, K, L, N","Limit value alarm":"Yes; Parameterizable","-250 mV to +250 mV":"Yes","-3.2 mA to +3.2 mA":"Yes","-500 mV to +500 mV":"Yes","Between The Channels":"No","Diagnostics function":"Yes; Parameterizable","Group error SF (red)":"Yes","Isolation tested with":"500 V DC","Resistance thermometer":"Yes","For Voltage Measurement":"Yes","Number of analog inputs":"8","Type TXK/TXK(L) to GOST":"No","Required Front Connector":"20-pin","Input resistance (Ni 100)":"10 MΩ","Input resistance (Pt 100)":"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 J)":"10 MΩ","Basic conversion time (ms)":"3 / 17 / 22 / 102 ms","For Resistance Thermometer":"Pt100 (standard, climatic range), Ni100 (standard, climatic range)","For resistance measurement":"4","Reverse polarity protection":"Yes","Input resistance (0 to 20 mA)":"25 Ω","Input resistance (1 V to 5 V)":"100 kΩ","Diagnostic information readable":"Yes","Input resistance (-1 V to +1 V)":"10 MΩ","Input resistance (-5 V to +5 V)":"100 kΩ","from backplane bus 5 V DC, max.":"50 mA","Input resistance (0 to 150 ohms)":"10 MΩ","Input resistance (0 to 300 ohms)":"10 MΩ","Input resistance (0 to 600 ohms)":"10 MΩ","Input resistance (4 mA to 20 mA)":"25 Ω","Input resistance (-10 V to +10 V)":"100 kΩ","Integration time, parameterizable":"Yes; 2,5 / 16,67 / 20 / 100 ms","Internal Temperature Compensation":"Yes","Input resistance (-10 mA to +10 mA)":"25 Ω","Input resistance (-2.5 V to +2.5 V)":"100 kΩ","Input resistance (-20 mA to +20 mA)":"25 Ω","Input resistance (-80 mV to +80 mV)":"10 MΩ","Input resistance (-250 mV to +250 mV)":"10 MΩ","Input resistance (-3.2 mA to +3.2 mA)":"25 Ω","Input resistance (-500 mV to +500 mV)":"10 MΩ","Between The Channels And Backplane Bus":"Yes","Current, relative to input range, (+/-)":"0.5 %; 3.2 to 20 mA","Voltage, relative to input range, (+/-)":"0.6 %; ±0.4 % (250 mV to 1 000 mV); ±0.6 % (2.5 mV to 10 mV); ±0.7 % (80 mV)","from load voltage L+ (without load), max.":"30 mA","For Definable Comparison Point Temperature":"Yes","Resistance, relative to input range, (+/-)":"0.5 %; 150, 300, 600 Ohm","For Current Measurement As 2-Wire Transducer":"Yes","For Current Measurement As 4-Wire Transducer":"Yes","Thermocouple, relative to input range, (+/-)":"0.7 %; Type E, N, J, K, L","For Resistance Measurement With Two-Wire Connection":"Yes","For Resistance Measurement With Four-Wire Connection":"Yes","Resolution with overrange (bit including sign), max.":"15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign","For Resistance Measurement With Three-Wire Connection":"Yes","Resistance thermometer, relative to input range, (+/-)":"0.6 %; ±0.5% (Pt100/ Ni100), ±0.6% (Pt100 climate)","External Temperature Compensation With Compensations Socket":"Yes","Between The Channels And The Power Supply Of The Electronics":"Yes","Constant measurement current for resistance-type transmitter, typ.":"1.67 mA","Interference voltage suppression for interference frequency f1 in Hz":"400 / 60 / 50 / 10 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"40 mA","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$66.66","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a2e6289bfb35ec25f6b65effeffa68d1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=511937&mlfb=6ES7331-7KF02-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7KF02-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Does 6ES7331-7KF02-0AB0 support thermocouples?","answer":"Yes, the module reads thermocouple types E, J, K, N, and L directly, covering common industrial temperature sensing applications."},{"question":"What RTD types does 6ES7331-7KF02-0AB0 accept?","answer":"The module accepts Pt100 and Ni100 standard RTD curves. It does not support Pt200, Pt500, Pt1000, Ni120, Ni200, Ni500, Ni1000, or LG-Ni1000."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7331-7KF02-0AB0","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/6ES7331-7KF02-0AB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}