{"product_id":"siemens-6es7231-4hd50-0xb0-sb-1231-4ai-signal-board","title":"Siemens 6ES7231-4HD50-0XB0 SIMATIC S7-1200 SB 1231 4AI 14-Bit Signal Board PLC I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7231-4HD50-0XB0 SB 1231 is a signal board for the SIMATIC S7-1200 that adds 4 analog inputs with 13-bit plus sign resolution, selectable for +\/-10V, +\/-5V, +\/-2.5V, or 0\/4-20 mA per channel. It draws 24 V DC at 30 mA and mounts directly on the CPU faceplate without a backplane slot.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e6ES7231-4HD50-0XB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type Designation\u003c\/td\u003e\n\u003ctd\u003eSB 1231, AI 4x 14 bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Analog Inputs\u003c\/td\u003e\n\u003ctd\u003e4, current or voltage differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Ranges, Voltage\u003c\/td\u003e\n\u003ctd\u003e+\/-10V, +\/-5V, +\/-2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Ranges, Current\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e13 bit + sign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle Time (All Channels)\u003c\/td\u003e\n\u003ctd\u003e0.625 ms max. at 400 Hz rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBasic Error Limit at 25 degrees C\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full-scale (voltage or current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC (20.4-28.8 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e30 mA typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length, Shielded\u003c\/td\u003e\n\u003ctd\u003e100 m max., twisted pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Loss\u003c\/td\u003e\n\u003ctd\u003e1.4 W typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eWire-break detection, supply-voltage monitoring, diagnostic alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e15 x 62 x 63 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30 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\u003e13-bit-plus-sign resolution across four switchable voltage or current ranges lets the same board read a 4-20 mA pressure transmitter on one channel and a +\/-10V load cell amplifier on another, without separate hardware per signal type. Wire-break detection on the current ranges flags a disconnected 4-20 mA loop as a diagnostic alarm rather than a silent zero reading. Because it occupies the CPU's signal-board slot rather than a backplane position, adding analog sensing this way leaves the backplane's SM slots free for higher-channel-count I\/O modules.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eLow-channel-count analog sensing (temperature, pressure, level, load) on SIMATIC S7-1200 CPUs where a full SM 1234-class analog module isn't justified by the point count.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960781005083,"sku":"6ES7231-4HD50-0XB0","price":118.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7231-4hd50-0xb0-sb-1231-signal-board.png?v=1789664316","url":"https:\/\/stoklink.com\/products\/siemens-6es7231-4hd50-0xb0-sb-1231-4ai-signal-board","provider":"Stoklink","version":"1.0","type":"link"}