{"product_id":"allen-bradley-1756-ia8d-diagnostic-ac-input-module","title":"Allen-Bradley 1756-IA8D ControlLogix Diagnostic AC Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-IA8D is a diagnostic AC input module designed for integration within the ControlLogix platform. This module provides 8 diagnostic input channels, specifically engineered for 120V AC applications. By incorporating diagnostic capabilities, the module allows for enhanced monitoring of input states and field-side fault detection, which is essential for maintaining high availability in critical industrial control environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProvides 8 diagnostic AC input channels.\u003c\/li\u003e\n\u003cli\u003eInput voltage rating of 120V AC with an operating range of 79-132V AC.\u003c\/li\u003e\n\u003cli\u003eProgrammable input delay times (9 or 18 milliseconds) to filter out transient noise.\u003c\/li\u003e\n\u003cli\u003eSupports diagnostic feedback to identify field wiring issues or signal status.\u003c\/li\u003e\n\u003cli\u003eIntegrated into the modular ControlLogix backplane for high-speed communication.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDiagnostic AC Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e79-132V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time\u003c\/td\u003e\n\u003ctd\u003e9 or 18 ms (Programmable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin. Operating Current\u003c\/td\u003e\n\u003ctd\u003e5 mA at 79V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Operating Current\u003c\/td\u003e\n\u003ctd\u003e16 mA at 132V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Off-State Current\u003c\/td\u003e\n\u003ctd\u003e2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is powered down before inserting or removing the 1756-IA8D module to prevent electrical arcing or damage to the backplane.\u003c\/li\u003e\n\u003cli\u003eUse appropriate shielded cabling for AC input signals to minimize electromagnetic interference (EMI) from high-voltage equipment.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the chassis slot and that the retaining screws are tightened to ensure a secure ground connection.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD precautions when handling the module to prevent damage to internal sensitive electronic components.\u003c\/li\u003e\n\u003cli\u003eCheck that the input voltage source is within the specified 79-132V AC operating range before applying power to the field terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary advantage of the 1756-IA8D over standard input modules?\u003c\/h3\u003e\u003cp\u003eThe 1756-IA8D includes diagnostic features that allow the control system to detect specific field-side conditions, such as open or short circuits, which standard modules cannot identify. This significantly reduces troubleshooting time and improves overall system reliability.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with all ControlLogix chassis?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-IA8D is designed for standard ControlLogix chassis and communicates directly via the backplane, making it compatible with all standard ControlLogix controllers.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44781422280792,"sku":"1756-IA8D","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_8f627603-8b46-435b-bf80-4224f09384ec.jpg?v=1789185324","url":"https:\/\/www.industriaxplc.com\/ar\/products\/allen-bradley-1756-ia8d-diagnostic-ac-input-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}