{"product_id":"siemens-6es7231-5pb50-0xb0-s7-1200-sb-1231-rtd-signal-board","title":"Siemens 6ES7231-5PB50-0XB0 SIMATIC S7-1200 SB 1231 RTD AI 2x RTD Signal Board","description":"\u003cp\u003eThe Siemens 6ES7231-5PB50-0XB0 is a SIMATIC S7-1200 SB 1231 RTD signal board with 2 analog inputs for Pt100, Pt1000, Ni100, Ni1000, and other resistance-thermometer types, offering 15-bit plus sign resolution and +\/-0.1% accuracy at 25 C. It supports cable runs up to 100 m shielded, provides 707 V DC isolation, carries an IP20 rating, and weighs only 29 g, mounting directly on the CPU's signal-board slot.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7231-5PB50-0XB0\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\u003eAnalog Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2, resistance thermometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15-bit + sign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePt10\/50\/100\/200\/500\/1000, Ni100\/120\/200\/500\/1000, Cu10\/50\/100, LG-Ni1000, 150\/300\/600 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Error (25 C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full-scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Error (-20 to 60 C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.2% of full-scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRepeat Accuracy (25 C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 m shielded to sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Current (backplane)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mA typ.\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\u003e0.1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e707 V DC, type test\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIP Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP20\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\u003e15 x 62 x 63 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCE mark\u003c\/li\u003e\n\u003cli\u003eUL approval\u003c\/li\u003e\n\u003cli\u003ecULus\u003c\/li\u003e\n\u003cli\u003eRCM\u003c\/li\u003e\n\u003cli\u003eKC approval\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSelection Notes\u003c\/h2\u003e\n\u003cp\u003eThe board reads 15 resistance-transmitter types (Pt, Ni, Cu, and raw resistance ranges) under a single ordering number, so the same board covers Pt100 and Pt1000 sensors without a separate SKU per sensor type - the type is selected in the hardware configuration, not at purchase. At 15 x 62 x 63 mm it mounts directly on the CPU's signal-board slot, adding RTD inputs without consuming a base-unit expansion slot or DIN-rail space. +\/-0.1% accuracy at 25 C fits process-temperature monitoring rather than laboratory-grade calibration work.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUsed for direct RTD temperature sensing - motor winding temperature, bearing temperature, process fluid temperature - on compact S7-1200 CPUs where a full I\/O module isn't justified for two channels.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960781201691,"sku":"6ES7231-5PB50-0XB0","price":144.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7231-5pb50-0xb0-s7-1200-sb-1231-rtd-board.png?v=1789678488","url":"https:\/\/stoklink.com\/products\/siemens-6es7231-5pb50-0xb0-s7-1200-sb-1231-rtd-signal-board","provider":"Stoklink","version":"1.0","type":"link"}