{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7531-7PF00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7531-7PF00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7531-7PF00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7531-7PF00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1500, AI 8xU/I/RTD/TC ST, 6ES7531-7PF00-0AB0, analog input module, 8 channels, MSI Yes, PTC Yes, depth 129 mm.","salesMarkdown":"This is the Siemens S7-1500 channel-isolated analog input module (6ES7531-7PF00-0AB0) that takes eight universal inputs: voltage, current, RTD, or thermocouple. It covers Pt100, Pt1000, Ni100, Cu10, and a dozen thermocouple types — B, C, E, J, K, N, R, S, T — but skips Type L. Both MSI (module-side isolation) and PTC sensor support are on the spec sheet, so you get galvanic separation for the field side and can connect PTC thermistors for motor thermal monitoring. For three-wire RTDs, the conductor compensation alternates with the measurement — that means a complete reading takes two module cycles. It’s not a high-speed point; plan your scan time accordingly if you’re using three-wire Pt100 on every channel. ## Commissioning note: status and wiring The RUN LED (green) and ERROR LED (red) give immediate field-side feedback. I&M data (I&M0 to I&M3) is present, so the module identifies itself to TIA Portal and supports maintenance records. Dimensions: 35 mm wide, 147 mm tall, 129 mm deep — standard S7-1500 form factor, snaps onto the DIN rail alongside other U-racks.","metaTitle":"Siemens 6ES7531-7PF00-0AB0 AI 8xU/I/RTD/TC ST, MSI PTC","metaDescription":"Siemens S7-1500 analog input module 6ES7531-7PF00-0AB0 supports RTD/TC sensors with MSI and PTC. Depth 129 mm. Specify an RFQ for lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog Input Modules"],"specifications":{"MSI":"Yes","PTC":"Yes","Cu 10":"Yes; Standard/climate","Cu 50":"Yes; Standard/climate","Depth":"129 mm","Ni 10":"Yes; Standard/climate","Note:":"for the R/RDT three-wire measurement, the conductor compensation is made alternating with the measurement; this then requires two module cycles for a measured value","Pt 10":"Yes; Standard/climate","Pt 50":"Yes; Standard/climate","Width":"35 mm","title":"6ES7531-7PF00-0AB0","Cu 100":"Yes; Standard/climate","Height":"147 mm","Ni 100":"Yes; Standard/climate","Ni 120":"Yes; Standard/climate","Ni 200":"Yes; Standard/climate","Ni 500":"Yes; Standard/climate","Pt 100":"Yes; Standard/climate","Pt 200":"Yes; Standard/climate","Pt 500":"Yes; Standard/climate","Type B":"Yes","Type C":"Yes","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type L":"No","Type N":"Yes","Type R":"Yes","Type S":"Yes","Type T":"Yes","Ni 1000":"Yes; Standard/climate","Pt 1000":"Yes; Standard/climate","RUN LED":"Yes; green LED","I&M data":"Yes; I&M0 to I&M3","0 to +5 V":"No","ERROR LED":"Yes; red LED","Step: low":"Yes","0 to +10 V":"No","0 to 20 mA":"No","1 V to 5 V":"No","LG-Ni 1000":"Yes; Standard/climate","Step: High":"Yes","Step: None":"Yes","Wire-break":"Yes; Only with TC, R, RTD","description":"SIMATIC S7-1500 analog input module AI 8xU/R/RTD/TC HF, 16 bit resolution, up to 21 bit Resolution at RT and TC, accuracy 0.1%, 8 channels in groups of 1; common mode voltage: 30 V AC/60 V DC, Diagnostics; Hardware interrupts Scalable temperature measuring range, thermocouple type C, Calibrate in RUN; Delivery including infeed element, shield bracket and shield terminal: Front connector (screw terminals or push-in) to be ordered separately","-1 V to +1 V":"Yes","-5 V to +5 V":"No","Oversampling":"No","Step: Medium":"Yes","0 To 150 Ohms":"Yes","0 To 300 Ohms":"Yes","0 To 600 Ohms":"Yes","4 mA to 20 mA":"No","-10 V to +10 V":"No","0 To 3000 Ohms":"No","0 To 6000 Ohms":"Yes","Shielded, Max.":"800 m; at U; 200 m at R/RTD/TC","Parameterizable":"Yes","Weight, approx.":"290 g","lifecycle_stage":"current","-2.5 V to +2.5 V":"No","-20 mA to +20 mA":"No","-25 mV to +25 mV":"Yes","-50 mV to +50 mV":"Yes","-80 mV to +80 mV":"Yes","Diagnostic alarm":"Yes","Firmware version":"V1.1.0","Isochronous mode":"No","Power loss, typ.":"1.9 W","Rated value (DC)":"24 V","Limit value alarm":"Yes; two upper and two lower limit values in each case","-250 mV to +250 mV":"Yes","-500 mV to +500 mV":"Yes","FW update possible":"Yes","Overflow/underflow":"Yes","Prioritized startup":"Yes","Between The Channels":"Yes","Diagnostics function":"Yes","HW functional status":"FS01","Integration time (ms)":"Fast mode: 2.5 / 16.67 / 20 / 100 ms, standard mode: 7.5 / 50 / 60 / 300 ms","Isolation tested with":"2 000 V DC between the channels and the supply voltage L+; 2 000 V DC between the channels and the backplane bus; 2 000 V DC between the channels; 707 V DC (type test) between the supply voltage L+ and the backplane bus","Channel status display":"Yes; green LED","For Module Diagnostics":"Yes; red LED","Input resistance (PTC)":"10 MΩ","Cu 10 according to GOST":"Yes; Standard/climate","Cu 50 according to GOST":"Yes; Standard/climate","For Channel Diagnostics":"Yes; red LED","For Voltage Measurement":"Yes","For voltage measurement":"8; Plus one additional RTD (reference) channel","Ni 10 according to GOST":"Yes; Standard/climate","Number of analog inputs":"8; Plus one additional RTD (reference) channel","Pt 10 according to GOST":"Yes; Standard/climate","Pt 50 according to GOST":"Yes; Standard/climate","Type TXK/TXK(L) to GOST":"Yes","Cu 100 according to GOST":"Yes; Standard/climate","Input resistance (Cu 10)":"10 MΩ","Input resistance (Cu 50)":"10 MΩ","Input resistance (Ni 10)":"10 MΩ","Input resistance (Pt 10)":"10 MΩ","Input resistance (Pt 50)":"10 MΩ","Measuring range scalable":"Yes","Ni 100 according to GOST":"Yes; Standard/climate","Ni 120 according to GOST":"Yes; Standard/climate","Ni 200 according to GOST":"Yes; Standard/climate","Ni 500 according to GOST":"Yes; Standard/climate","Pt 100 according to GOST":"Yes; Standard/climate","Pt 200 according to GOST":"Yes; Standard/climate","Pt 500 according to GOST":"Yes; Standard/climate","Scalable measured values":"No","Common mode voltage, max.":"60 V DC/30 V AC","Current consumption, max.":"55 mA; with 24 V DC supply","Input resistance (Cu 100)":"10 MΩ","Input resistance (Ni 100)":"10 MΩ","Input resistance (Ni 120)":"10 MΩ","Input resistance (Ni 200)":"10 MΩ","Input resistance (Ni 500)":"10 MΩ","Input resistance (Pt 100)":"10 MΩ","Input resistance (Pt 200)":"10 MΩ","Input resistance (Pt 500)":"10 MΩ","Input resistance (Type B)":"10 MΩ","Input resistance (Type C)":"10 MΩ","Input resistance (Type E)":"10 MΩ","Input resistance (Type K)":"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 J)":"10 MΩ","Ni 1000 according to GOST":"Yes; Standard/climate","Pt 1000 according to GOST":"Yes; Standard/climate","Between Different Circuits":"60 V DC/30 V AC; insulation rated for 120 V AC basic insulation: between the channels and the supply voltage L+; between the channels and the backplane bus; between the channels","Input resistance (Ni 1000)":"10 MΩ","Input resistance (Pt 1000)":"10 MΩ","Calibration possible in RUN":"Yes","Reverse polarity protection":"Yes","Vertical Installation, Max.":"40 °C","Vertical Installation, Min.":"0 °C","For thermocouple measurement":"8; Plus one additional RTD (reference) channel","Adjustment of measuring range":"No","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"0 °C","Input resistance (LG-Ni 1000)":"10 MΩ","Monitoring the supply voltage":"Yes","Common mode interference, min.":"80 dB","Input resistance (-1 V to +1 V)":"10 MΩ","Reference channel of the module":"Yes; 9th channel that can be used as a genuine 9th RTD channel regardless of the parameterization of the other channels, or that can be used for compensation in the case of TC measurement","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 (0 to 6000 ohms)":"10 MΩ","Integration time, parameterizable":"Yes","Internal Temperature Compensation":"Yes","Between The Channels, In Groups Of":"1","Crosstalk between the inputs, max.":"-80 dB","Reparameterization possible in RUN":"Yes","Input resistance (-25 mV to +25 mV)":"10 MΩ","Input resistance (-50 mV to +50 mV)":"10 MΩ","Input resistance (-80 mV to +80 mV)":"10 MΩ","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Input resistance (-250 mV to +250 mV)":"10 MΩ","Input resistance (-500 mV to +500 mV)":"10 MΩ","Between The Channels And Backplane Bus":"Yes","PROFIBUS from GSD version/GSD revision":"V1.0 / V5.1","PROFINET from GSD version/GSD revision":"V2.3 / -","Power available from the backplane bus":"0.85 W","Voltage, relative to input range, (+/-)":"0.05 %","external temperature compensation via RTD":"Yes","Input resistance (Cu 10 according to GOST)":"10 MΩ","Input resistance (Cu 50 according to GOST)":"10 MΩ","Input resistance (Ni 10 according to GOST)":"10 MΩ","Input resistance (Pt 10 according to GOST)":"10 MΩ","Input resistance (Pt 50 according to GOST)":"10 MΩ","Input resistance (Type TXK/TXK(L) to GOST)":"10 MΩ","Monitoring of the supply voltage (PWR-LED)":"Yes; green LED","Resistance, relative to input range, (+/-)":"0.05 %","Temperature error of internal compensation":"±1,5 °C","Input resistance (Cu 100 according to GOST)":"10 MΩ","Input resistance (Ni 100 according to GOST)":"10 MΩ","Input resistance (Ni 120 according to GOST)":"10 MΩ","Input resistance (Ni 200 according to GOST)":"10 MΩ","Input resistance (Ni 500 according to GOST)":"10 MΩ","Input resistance (Pt 100 according to GOST)":"10 MΩ","Input resistance (Pt 200 according to GOST)":"10 MΩ","Input resistance (Pt 500 according to GOST)":"10 MΩ","STEP 7 configurable/integrated from version":"V5.5 SP3 / -","For Current Measurement As 2-Wire Transducer":"No","For Current Measurement As 4-Wire Transducer":"No","Input resistance (Ni 1000 according to GOST)":"10 MΩ","Input resistance (Pt 1000 according to GOST)":"10 MΩ","Suitable for applications according to CQI-9":"Yes; Based on AMS 2750 E","Thermocouple, relative to input range, (+/-)":"Type B: > 600 °C ±1 K, Type E: > -200 °C ±0.5 K, Type J: > -210 °C ±0.5 K, Type K: > -200 °C ±1 K, Type N: > -200 °C ±1 K, Type R: > 0 °C ±1 K, Type S: > 0 °C ±1 K, Type T: > -200 °C ±0.5 K, Type C: ±2 K, Type TXK/TXK(L): ±0.5 K","Suitable for applications according to AMS 2750":"Yes; Declaration of Conformity, see online support entry 109757262","Linearity error (relative to input range), (+/-)":"0.02 %","For resistance/resistance thermometer measurement":"8; Plus one additional RTD (reference) channel","Compensation for 0 °C reference point temperature":"Yes; fixed value can be set","Temperature error (relative to input range), (+/-)":"0.005 %/K","For Resistance Measurement With Two-Wire Connection":"Yes","Additional Conversion Time For Wire-Break Monitoring":"Thermocouples, 150 Ohm, 300 Ohm, 600 Ohm, Cu10, Cu50, Cu100, Ni10, Ni100, Ni120, Ni200, Pt10, Pt50, Pt100: 4 ms; 6 kOhm, Ni500, Ni1000, LG-Ni1000, Pt200, Pt500, Pt1000: 13 ms","For Resistance Measurement With Four-Wire Connection":"Yes; All measuring ranges except PTC","Resolution with overrange (bit including sign), max.":"21 bit; For measuring mode RTC and TC when using the function \"Scalable temperature measuring range\" (32 bit REAL format); 16 bit for measuring mode R and U; 16 bit for all measuring modes when using the S7 format (16 bit INTEGER)","For Resistance Measurement With Three-Wire Connection":"Yes; All measuring ranges except PTC; internal compensation of the cable resistances","Technical unit for temperature measurement adjustable":"Yes; °C/°F/K","Basic conversion time, including integration time (ms)":"Fast mode: 4 / 18 / 22 / 102 ms; Standard mode: 9 / 52 / 62 / 302 ms","Resistance thermometer, relative to input range, (+/-)":"Cuxxx Standard: ±0.3 K, Cuxxx Klima: ±0.2 K, Ptxxx Standard: ±0.5 K, Ptxxx Klima: ±0.2 K, Nixxx Standard: ±0.3 K, Nixxx Klima: ±0.15 K","STEP 7 TIA Portal configurable/integrated from version":"V14 / -","Basic execution time of the module (all channels released)":"Corresponds to the channel with the highest basic conversion time","Between The Channels And The Power Supply Of The Electronics":"Yes","Constant measurement current for resistance-type transmitter, typ.":"150 Ohm, 300 Ohm, 600 Ohm, Cu10, Cu50, Cu100, Ni10, Ni100, Ni120, Ni200, Pt10, Pt50, Pt100, Pt200 climate: 1 mA; 6 kOhm, Ni500, Ni1000, LG-Ni1000, Pt200 standard, Pt500, Pt1000, PTC: 0.25 mA","Interference voltage suppression for interference frequency f1 in Hz":"400 / 60 / 50 / 10 Hz","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"20 V","Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)":"0.02 %","Series mode interference (peak value of interference < rated value of input range), min.":"80 dB; in the Standard operating mode, 40 dB in the Fast operating mode"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$659.13","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/21fcc1ab5b4ff866001970f9f31c6635.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=689602&mlfb=6ES7531-7PF00-0AB0"},"ai":{"faq":[{"question":"Does the 6ES7531-7PF00-0AB0 support MSI?","answer":"Yes, the module is listed with MSI (module-side isolation) enabled."},{"question":"Does the 6ES7531-7PF00-0AB0 support PTC?","answer":"Yes, PTC sensor input is confirmed on this module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7531-7PF00-0AB0","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/6ES7531-7PF00-0AB0 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}}