{"product_id":"siemens-6es7521-1bl00-0ab0-high-feature-digital-input","title":"Siemens 6ES7521-1BL00-0AB0 High-Feature Digital Input","description":"\u003ch2\u003e\u003cstrong\u003eSiemens 6ES7521-1BL00-0AB0 S7-1500 Digital Input Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #2e6c80;\"\u003e6ES7521-1BL00-0AB0\u003c\/span\u003e\u003c\/strong\u003e is a SIMATIC S7-1500 digital input module. This High Feature (HF) module has 32 channels for 24V DC signals. It supports high-speed counting and advanced diagnostics for precise control.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Siemens \u003cstrong\u003e6ES7521-1BL00-0AB0\u003c\/strong\u003e (DI 32x24VDC HF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Inputs:\u003c\/strong\u003e 32 digital channels, in groups of 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 24V DC nominal (19.2V - 28.8V range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e IEC 61131, Type 3 (sink\/source)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Delay:\u003c\/strong\u003e Configurable from 0.05 ms to 20 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Counters:\u003c\/strong\u003e 2 channels, up to 6 kHz, 32-bit width\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Loss:\u003c\/strong\u003e Typical 4.2 W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures, Dimensions \u0026amp; Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e Hardware interrupts, wire-break diagnosis, supply voltage monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Front connector (screw or push-in) ordered separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e Up to 1000 m shielded, 600 m unshielded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 35 mm x 147 mm x 129 mm (W x H x D)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 260 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -30°C to +60°C (horizontal mount)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What are the main functions of this module?\u003c\/strong\u003e\u003cbr\u003eA: It reads 32 digital signals. It also works as two high-speed counters. It sends alarms for errors or process events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is needed for installation?\u003c\/strong\u003e\u003cbr\u003eA: You need a separate front connector. The module snaps onto an S7-1500 rack. Use TIA Portal for configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can it connect to 2-wire sensors?\u003c\/strong\u003e\u003cbr\u003eA: Yes. It supports 2-wire sensors with a max 1.5 mA quiescent current. It has reverse polarity protection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51421164175492,"sku":"6ES7521-1BL00-0AB0","price":174.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/6ES7521-1BL00-0AB0.jpg?v=1766815013","url":"https:\/\/www.etowonauto.com\/az\/products\/siemens-6es7521-1bl00-0ab0-high-feature-digital-input","provider":"Etowon Auto","version":"1.0","type":"link"}