{"product_id":"siemens-6es7231-5qd50-0xb0-s7-1200-sb-1231-tc","title":"Siemens 6ES7231-5QD50-0XB0 SIMATIC S7-1200 SB 1231 TC AI 4x Thermocouple 16-bit Signal Board PLC I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7231-5QD50-0XB0 is a SIMATIC S7-1200 SB 1231 TC signal board with 4 thermocouple analog inputs supporting types J, K, T, E, R, S, B, N and TXK\/XK(L), plus a +\/-80mV voltage range, at 15-bit plus sign resolution. It mounts directly onto the CPU faceplate and draws 20 mA typical from the 5V backplane bus.\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\u003e6ES7231-5QD50-0XB0\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\u003eSB 1231, AI 4x 16-bit TC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4, thermocouple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermocouple types supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJ, K, T, E, R, S, B, N, C, TXK\/XK(L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage input range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-80 mV to +80 mV, input resistance \u0026gt;= 10 MOhm\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\u003eCold junction compensation error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-1.5 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.05% at 25 degC \/ +\/-0.1% from -20 to 60 degC (of full-scale range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRepeat accuracy at 25 degC\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\u003eCommon mode interference suppression, min.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterference voltage suppression\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85 dB at 10\/50\/60\/400 Hz\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\u003e100 m to sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation test voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e707 V DC (type test), 120 V AC between channels\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\u003eAmbient temperature, horizontal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient temperature, vertical\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20 to +50 degC\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\u003eCurrent consumption, backplane bus 5V, typ.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mA\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\u003eWeight, approx.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCE\u003c\/li\u003e\n\u003cli\u003eUL\u003c\/li\u003e\n\u003cli\u003ecULus\u003c\/li\u003e\n\u003cli\u003eRCM\u003c\/li\u003e\n\u003cli\u003eKC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eThe 8 supported thermocouple types (J, K, T, E, R, S, B, N) plus the raw +\/-80mV voltage range let one signal board serve almost any thermocouple type a process specifies, with the type set per channel in software rather than by hardware selection. Cold-junction compensation accuracy of +\/-1.5 degC sets the practical measurement floor - for tighter accuracy an external reference junction or RTD-based module is the better fit. As a Signal Board it consumes no extra CPU slot, mounting directly on the S7-1200 CPU faceplate, which matters when I\/O real estate on a compact machine panel is already tight.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eDirect temperature measurement on compact S7-1200 machines - oven, extruder, or drying-process temperature loops where adding a full analog input module isn't justified for just 4 channels.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960782119195,"sku":"6ES7231-5QD50-0XB0","price":169.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7231-5qd50-0xb0-s7-1200-sb-1231-tc-signal-board.png?v=1789664960","url":"https:\/\/stoklink.com\/products\/siemens-6es7231-5qd50-0xb0-s7-1200-sb-1231-tc","provider":"Stoklink","version":"1.0","type":"link"}