{"product_id":"siemens-6es7221-1bf32-0xb0-s7-1200-sm1221-8di-24vdc","title":"Siemens 6ES7221-1BF32-0XB0 SIMATIC S7-1200 SM 1221 8DI 24V DC Digital Input Module","description":"\u003cp\u003eThe Siemens 6ES7221-1BF32-0XB0 is a SIMATIC S7-1200 SM 1221 digital input module with 8 sink\/source inputs at 24 V DC, in groups of 2. Input delay is parameterizable from 0.2 to 12.8 ms per IEC 61131 type 1. It draws up to 105 mA from the backplane bus, reports diagnostic alarms, and mounts in a 45 mm wide housing rated IP20.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e6ES7221-1BF32-0XB0\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\u003eSM 1221, DI 8x24 V DC\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 (backplane bus, max)\u003c\/td\u003e\n\u003ctd\u003e105 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e8, in groups of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eIEC 61131 Type 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage, Signal '0'\u003c\/td\u003e\n\u003ctd\u003e5 V DC at 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage, Signal '1'\u003c\/td\u003e\n\u003ctd\u003e15 V DC at 2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay\u003c\/td\u003e\n\u003ctd\u003eParameterizable, 0.2-12.8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e500 m shielded \/ 300 m unshielded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Loss\u003c\/td\u003e\n\u003ctd\u003e1.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 60°C horizontal, -20 to 50°C vertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e45 x 100 x 75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e170 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\u003eCSA\u003c\/li\u003e\n\u003cli\u003eUL\u003c\/li\u003e\n\u003cli\u003ecULus\u003c\/li\u003e\n\u003cli\u003eFM\u003c\/li\u003e\n\u003cli\u003eRCM\u003c\/li\u003e\n\u003cli\u003eKC\u003c\/li\u003e\n\u003cli\u003eMarine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003e8 sink\/source-configurable inputs in groups of 2 let this module mix PNP and NPN field devices on the same S7-1200 station without separate sourcing\/sinking modules. Input delay is parameterizable per group from 0.2 to 12.8 ms, so fast digital inputs used for interrupts can run at the low end while noisy limit-switch wiring uses a longer filter time on the same module. At 45 mm width it's one of the wider S7-1200 signal modules — where panel space is tight, an equivalent SM 1221 with fewer channels in a narrower housing is worth checking.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eFits small S7-1200 machine controllers reading discrete sensors, limit switches and pushbuttons where sink\/source flexibility is needed on the same module.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960777302299,"sku":"6ES7221-1BF32-0XB0","price":150.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7221-1bf32-0xb0-s7-1200-sm1221-8di-24vdc.png?v=1789663617","url":"https:\/\/stoklink.com\/products\/siemens-6es7221-1bf32-0xb0-s7-1200-sm1221-8di-24vdc","provider":"Stoklink","version":"1.0","type":"link"}