{"product_id":"siemens-simatic-s5-digital-input-module-6es5-421-5aa11","title":"Siemens 6ES5421-5AA11 Simatic S5 Digital Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Siemens 6ES5421-5AA11 is a robust digital input module designed for the Simatic S5 automation series. This unit is engineered to interface field-level binary signals with the central control system, providing reliable data acquisition for industrial automation tasks. It is specifically built for integration into S5-130 and S5-150 rack systems, ensuring high-speed signal processing and consistent performance in demanding manufacturing environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32 digital input channels for high-density signal monitoring.\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation via optocouplers to protect the backplane bus from field-side voltage transients.\u003c\/li\u003e\n\u003cli\u003eIntegrated RC filtering to mitigate contact bounce and high-frequency electrical noise.\u003c\/li\u003e\n\u003cli\u003eFront-panel LED indicators for immediate visual status verification of each input channel.\u003c\/li\u003e\n\u003cli\u003eOptimized for low power consumption, drawing 1.2 W from the system backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is suitable for a wide range of industrial applications, including automotive assembly lines, water treatment infrastructure, and heavy manufacturing processes. It is designed to reliably monitor field switches, sensors, and limit switches while maintaining electrical integrity through its isolated architecture.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5421-5AA11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eSimatic S5-130 \/ S5-150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e8 mA typical per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the S5 rack is powered down before inserting or removing the module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is correctly seated in the rack slot to ensure proper backplane communication.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for field inputs to minimize electromagnetic interference (EMI) in high-noise environments.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation within the control cabinet to ensure the module operates within its specified temperature range.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD (Electrostatic Discharge) handling procedures when touching the module circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs this module compatible with all S5 racks?\u003c\/h3\u003e\u003cp\u003eThe 6ES5421-5AA11 is designed for the Simatic S5-130 and S5-150 series. Please verify your specific rack configuration and CPU compatibility before installation.\u003c\/p\u003e\u003ch3\u003eDoes this module require external power for the inputs?\u003c\/h3\u003e\u003cp\u003eYes, the module requires a 24 VDC supply to power the input channels. The 1.2 W power consumption listed refers to the draw from the internal backplane bus.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51006340956412,"sku":"6ES5421-5AA11","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_0e38ac4a-b9c0-4c38-a80c-08d0d9e00850.jpg?v=1787501157","url":"https:\/\/www.electronicplc.com\/ar\/products\/siemens-simatic-s5-digital-input-module-6es5-421-5aa11","provider":"Electronic PLC","version":"1.0","type":"link"}