{"product_id":"siemens-simatic-s7-1200-g2-digital-signal-modules-sm-1221-1222-1223","title":"Siemens SIMATIC S7-1200 G2 Digital Signal Modules SM 1221\/1222\/1223","description":"\u003cp class=\"ps-intro\"\u003eDigital input, output and input\/output signal modules for expanding the I\/O of SIMATIC S7-1200 G2 CPUs.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003eSM 1221: 16 digital inputs 24 V DC sink\/source\u003c\/li\u003e\n\u003cli\u003eSM 1222: 16 digital outputs, transistor 0.5 A or relay 2 A\u003c\/li\u003e\n\u003cli\u003eSM 1223: 8 DI\/8 DO or 16 DI\/16 DO, transistor (PNP\/NPN) or relay\u003c\/li\u003e\n\u003cli\u003eMounted to the right of the CPU on the DIN rail\u003c\/li\u003e\n\u003cli\u003eConfigured in STEP 7 (TIA Portal)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 class=\"ps-h\"\u003eSpecifications\u003c\/h4\u003e\u003ctable class=\"ps-kv\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eSIMATIC S7-1200 G2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModule type\u003c\/th\u003e\n\u003ctd\u003eDigital signal module (SM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput voltage\u003c\/th\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSource\u003c\/th\u003e\n\u003ctd\u003eSiemens Catalog ST 70 · 2026, p. 420-434\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"ps-src\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7221-1BH50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1221 | Inputs: 16 DI 24 V DC sink\/source | Outputs: -\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7222-5BH50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1222 | Inputs: - | Outputs: 16 DO 24 V DC 0.5 A sourcing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7222-5HH50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1222 | Inputs: - | Outputs: 16 DO relay 2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7223-5BH50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1223 | Inputs: 8 DI 24 V DC sink\/source | Outputs: 8 DO 24 V DC 0.5 A sourcing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7223-5PH50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1223 | Inputs: 8 DI 24 V DC sink\/source | Outputs: 8 DO relay 2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7223-5BL50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1223 | Inputs: 16 DI 24 V DC sink\/source | Outputs: 16 DO PNP transistor 0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7223-5BL50-1XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1223 | Inputs: 16 DI 24 V DC sink\/source | Outputs: 16 DO NPN transistor 0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6ES7223-5PL50-0XB0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eModule: SM 1223 | Inputs: 16 DI 24 V DC sink\/source | Outputs: 16 DO relay 2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67534370701602,"sku":"6ES7221-1BH50-0XB0","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-simatic-s7-1200-g2-digital-signal-modules-sm-1221-1222-1223.jpg?v=1792131801","url":"https:\/\/prosourcemro.com\/products\/siemens-simatic-s7-1200-g2-digital-signal-modules-sm-1221-1222-1223","provider":"ProSource MRO","version":"1.0","type":"link"}