{"product_id":"siemens-6es7431-7kf10-0ab0-sm-431-8ai-pt100","title":"Siemens 6ES7431-7KF10-0AB0 SIMATIC S7-400 SM 431 8AI Resistance\/PT100 16-Bit PLC I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7431-7KF10-0AB0 is a SIMATIC S7-400 SM 431 analog input module with 8 isolated resistance\/PT100\/NI100 channels at 16-bit resolution and a 20 ms conversion time. It supports Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni1000 resistance thermometers with three- or four-wire connection and parameterizable diagnostic and limit-value alarms.\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\u003e6ES7431-7KF10-0AB0\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 S7-400\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 431, 8AI, resistance\/PT100, 16-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, for resistance measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution, max.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 bit (with overrange, incl. sign)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasic conversion time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 \/ 23 \/ 25 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegration time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 ms at 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported RTD types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePt100, Pt200, Pt500, Pt1000, Ni100, Ni1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-wire or 4-wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstant measurement current, typ.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput resistance, all RTD ranges\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 10000 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperational error limit, RTD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 1 degrees C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasic error limit at 25 degrees C, RTD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.2 degrees C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable length, shielded, max.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 m (50 m with thermocouples\/+\/-80mV ranges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation tested with\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent consumption from backplane bus, max.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e650 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower loss, typ.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 x 290 x 210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight, approx.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e650 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eUse the four-wire connection over three-wire when lead resistance must be fully compensated for the tightest accuracy; the module holds +\/-0.2 degrees C basic error at 25 degrees C but that widens to +\/-1 degrees C operational error across the full temperature range, so budget accordingly for close-tolerance process loops. All six RTD types (Pt100 through Ni1000) are parameterizable per channel independently, so mixed sensor types can share one module rather than requiring separate cards per RTD class.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eFits precision temperature monitoring on rack-based S7-400 systems using RTD sensors: motor winding temperature, furnace and oven zone control, and process temperature loops where 16-bit resolution and multi-RTD-type support reduce the number of module types needed on one rack.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960603664667,"sku":"6ES7431-7KF10-0AB0","price":1726.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7431-7kf10-0ab0-sm-431-8ai-pt100-module.png?v=1789680603","url":"https:\/\/stoklink.com\/products\/siemens-6es7431-7kf10-0ab0-sm-431-8ai-pt100","provider":"Stoklink","version":"1.0","type":"link"}