{"product_id":"siemens-6es7321-1bl00-0aa0-input-module-responsive-support","title":"6ES7321-1BL00-0AA0 | Siemens SIMATIC S7-300 SM 321 Digital Input Module, 32 DI, 24 VDC, Isolated","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe Siemens 6ES7321-1BL00-0AA0 is an SM 321 digital input module for the SIMATIC S7-300 automation platform, providing 32 isolated 24 VDC inputs. Designed for DIN-rail mounting, it supports reliable signal acquisition in both centralized S7-300 racks and distributed ET 200M I\/O stations. Its 40-pole connector interface enables high-density wiring in control cabinet environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\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\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLC I\/O Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7321-1BL00-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-300 Digital Input Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-300 \/ ET 200M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (isolated inputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40-pole front connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS7-300 central rack or ET 200M distributed I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP20 (cabinet installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMachine, process, and building automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About 6ES7321-1BL00-0AA0\u003c\/h4\u003e\n\u003cp\u003eThe 6ES7321-1BL00-0AA0 is part of the SIMATIC S7-300 series, offering isolated digital input processing for machine and process automation applications. The module provides 32 channels for monitoring 24 VDC field signals, making it suitable for large I\/O counts within compact installations. It can be used in standard S7-300 racks or ET 200M distributed I\/O configurations via PROFIBUS or PROFINET interface modules. Typical uses include sensing pushbuttons, limit switches, sensors, and PLC-level input signals in manufacturing, material handling, and building automation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e32 Isolated DC Inputs: Supports high-density 24 VDC signal acquisition.\u003c\/li\u003e\n\u003cli\u003e40-Pole Connector: Accommodates multi-channel wiring in a compact footprint.\u003c\/li\u003e\n\u003cli\u003eS7-300\/ET 200M Compatibility: Works in both central racks and distributed configurations.\u003c\/li\u003e\n\u003cli\u003eReliable Isolation: Enhances noise immunity and channel protection.\u003c\/li\u003e\n\u003cli\u003eDIN-Rail Installation: Quick mounting within control cabinets.\u003c\/li\u003e\n\u003cli\u003eModular Design: Integrates seamlessly with SIMATIC I\/O modules and communication processors.\u003c\/li\u003e\n\u003cli\u003eWide Application Use: Ideal for sensing switches, sensors, and automation field devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 6ES7321-1BL00-0AA0 delivers the reliability and precision required for high-density digital input processing in SIMATIC S7-300 control systems.\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":47227767030058,"sku":"6ES7321-1BL00-0AA0","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/6ES7321-1BL00-0AA0.webp?v=1708084285","url":"https:\/\/iqelectro.com\/products\/siemens-6es7321-1bl00-0aa0-input-module-responsive-support","provider":"IQElectro","version":"1.0","type":"link"}