{"product_id":"siemens-6es7321-1bh02-0aa0-module","title":"SIEMENS 6ES7321-1BH02-0AA0 SM 321 Digital Input Module 16DI 24VDC","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 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*,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none !important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\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\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e6ES7321-1BH02-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSM 321\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Digital Inputs\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage for Signal 1\u003c\/td\u003e\n\u003ctd\u003e13-30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage for Signal 0\u003c\/td\u003e\n\u003ctd\u003e-30 to +5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current for Signal 1\u003c\/td\u003e\n\u003ctd\u003e7 mA typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Characteristic\u003c\/td\u003e\n\u003ctd\u003eAccording to IEC 61131, Type 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay\u003c\/td\u003e\n\u003ctd\u003e1.2-4.8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Input Groups\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Loss\u003c\/td\u003e\n\u003ctd\u003e3.5 W typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront Connector\u003c\/td\u003e\n\u003ctd\u003e20-Pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e16 Digital Inputs\u003c\/h3\u003e\n\u003cp\u003eThe SM 321 provides 16 digital input channels for acquiring 24 VDC field signals in SIMATIC S7-300 automation systems.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e24 VDC Input Signals\u003c\/h3\u003e\n\u003cp\u003eThe module is designed for a rated input voltage of 24 VDC and uses input characteristics according to IEC 61131 Type 1.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eS7-300 Signal Module\u003c\/h3\u003e\n\u003cp\u003e6ES7321-1BH02-0AA0 belongs to the SIMATIC S7-300 SM 321 digital input module family.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003ePotential Isolation\u003c\/h3\u003e\n\u003cp\u003eThe digital inputs are electrically isolated from the S7-300 backplane bus for field signal acquisition.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e20-Pole Front Connection\u003c\/h3\u003e\n\u003cp\u003eThe module uses a 20-pole front connector arrangement for connecting field wiring to its digital input channels.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eDefined Input Delay\u003c\/h3\u003e\n\u003cp\u003ePublished technical data specifies an input delay range of 1.2 to 4.8 ms for standard digital signal processing.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSIMATIC S7-300 PLC systems\u003c\/li\u003e\n\u003cli\u003eIndustrial machine control\u003c\/li\u003e\n\u003cli\u003eSensor signal acquisition\u003c\/li\u003e\n\u003cli\u003eLimit switch monitoring\u003c\/li\u003e\n\u003cli\u003ePushbutton and selector input acquisition\u003c\/li\u003e\n\u003cli\u003eProduction line automation\u003c\/li\u003e\n\u003cli\u003eEquipment status monitoring\u003c\/li\u003e\n\u003cli\u003eFactory automation control panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the SIEMENS 6ES7321-1BH02-0AA0 Digital Input Module. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is SIEMENS 6ES7321-1BH02-0AA0?\u003c\/strong\u003e\u003cbr\u003eIt is a SIMATIC S7-300 SM 321 digital input module for acquiring 24 VDC digital field signals.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow many digital inputs does 6ES7321-1BH02-0AA0 provide?\u003c\/strong\u003e\u003cbr\u003eThe module provides 16 digital input channels.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated input voltage?\u003c\/strong\u003e\u003cbr\u003eThe rated input voltage is 24 VDC.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the typical input current for signal 1?\u003c\/strong\u003e\u003cbr\u003eThe documented typical input current for signal 1 is 7 mA.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhich PLC family uses this module?\u003c\/strong\u003e\u003cbr\u003e6ES7321-1BH02-0AA0 belongs to the SIMATIC S7-300 signal module family.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat input characteristic does the module use?\u003c\/strong\u003e\u003cbr\u003eIts digital input characteristic is specified according to IEC 61131 Type 1.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the input delay?\u003c\/strong\u003e\u003cbr\u003ePublished technical data specifies an input delay range of 1.2 to 4.8 ms.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eAre the inputs isolated from the backplane bus?\u003c\/strong\u003e\u003cbr\u003eYes. Potential isolation is provided between the digital input channels and the backplane bus.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat front connector is used?\u003c\/strong\u003e\u003cbr\u003eThe module uses a 20-pole front connector arrangement.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can 6ES7321-1BH02-0AA0 be used?\u003c\/strong\u003e\u003cbr\u003eIt can be used for acquiring digital signals from sensors, switches and other 24 VDC field devices in suitable S7-300 automation systems.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan 6ES7321-1BH02-0AA0 be considered for an existing S7-300 system?\u003c\/strong\u003e\u003cbr\u003eIt can be considered after the exact article number, CPU and rack configuration, input voltage, channel requirements, front connector and engineering configuration have been checked.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering?\u003c\/strong\u003e\u003cbr\u003eCheck the complete 6ES7321-1BH02-0AA0 article number together with the S7-300 hardware configuration, required number of inputs, 24 VDC signal requirements and front connector arrangement before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":46518859006031,"sku":"GJL-SIEMENS-6ES7321-1BH02-0AA0","price":22.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/6ES7321-1BH02-0AA0-_02.jpg?v=1787908000","url":"https:\/\/yunshuotrade.com\/products\/siemens-6es7321-1bh02-0aa0-module","provider":"yunshuotrade","version":"1.0","type":"link"}