{"product_id":"siemens-6es7231-4hf32-0xb0-s7-1200-sm1231-8ai-module","title":"Siemens 6ES7231-4HF32-0XB0 SIMATIC S7-1200 SM 1231 AI 8x13-Bit Analog Input Module","description":"\u003cp\u003eThe Siemens 6ES7231-4HF32-0XB0 is a SIMATIC S7-1200 SM 1231 analog input module with 8 channels, configurable for +\/-10 V, +\/-5 V, +\/-2.5 V, 0-20 mA, or 4-20 mA, at 12-bit + sign (13-bit ADC) resolution. It runs on 24 V DC and draws 60 mA typical from the supply.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7231-4HF32-0XB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSM 1231, AI 8x13 bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 (current\/voltage differential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12-bit + sign (13-bit ADC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Ranges (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-10 V, +\/-5 V, +\/-2.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Ranges (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 mA typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCycle Time (all channels)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e625 microseconds max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasic Error Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% (voltage\/current, 25C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (WxHxD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 x 100 x 75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCE mark\u003c\/li\u003e\n\u003cli\u003eCSA approval\u003c\/li\u003e\n\u003cli\u003eUL approval\u003c\/li\u003e\n\u003cli\u003ecULus\u003c\/li\u003e\n\u003cli\u003eFM approval\u003c\/li\u003e\n\u003cli\u003eRCM\u003c\/li\u003e\n\u003cli\u003eKC approval\u003c\/li\u003e\n\u003cli\u003eMarine approval\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eAll 8 channels are software-selectable between +\/-2.5 V and +\/-10 V or 0\/4-20 mA, so this module covers most process transmitters without hardware changes -- the 4-channel SM 1231 variant is the better fit when a station only needs half the input count and rack space is tight. A 625 microsecond cycle time across all 8 channels handles moderate-speed loops like pressure or flow; a dedicated high-speed analog module suits faster measurement needs. The basic error limit of +\/-0.1% at 25C on both voltage and current ranges is tight enough for most process-monitoring loops without external calibration.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eProcess signal acquisition from 4-20 mA transmitters and pressure, level, or flow sensors on SIMATIC S7-1200 stations; machine monitoring and potentiometer or voltage feedback inputs.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960781037851,"sku":"6ES7231-4HF32-0XB0","price":502.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7231-4hf32-0xb0-s7-1200-sm1231-analog-input.png?v=1789663083","url":"https:\/\/stoklink.com\/products\/siemens-6es7231-4hf32-0xb0-s7-1200-sm1231-8ai-module","provider":"Stoklink","version":"1.0","type":"link"}