{"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 high-performance diagnostic input module designed for the ControlLogix platform. This module provides 8 diagnostic AC input points, specifically engineered for 120V AC applications. It is capable of detecting and reporting field-side faults, significantly reducing troubleshooting time and improving system reliability in industrial automation environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIntegrated diagnostic capabilities for real-time monitoring of input signal integrity.\u003c\/li\u003e\n\u003cli\u003e8 isolated diagnostic AC input channels.\u003c\/li\u003e\n\u003cli\u003eProgrammable input delay times (9 or 18 milliseconds) to accommodate various signal filtering requirements.\u003c\/li\u003e\n\u003cli\u003eDesigned for standard 120V AC control systems with an operating range of 79-132V AC.\u003c\/li\u003e\n\u003cli\u003eCompatible with the standard 1756 ControlLogix chassis backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-IA8D\u003c\/td\u003e\n\u003c\/tr\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\u003eNominal Input 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\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 module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the chassis slot and that the locking tab is engaged.\u003c\/li\u003e\n\u003cli\u003eUse appropriate shielded cabling to minimize electromagnetic interference (EMI) in high-noise industrial environments.\u003c\/li\u003e\n\u003cli\u003eEnsure that input wiring corresponds to the correct terminal blocks for the 1756-IA8D configuration.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation within the cabinet to ensure the module operates within its specified temperature range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the diagnostic feature on the 1756-IA8D?\u003c\/strong\u003e\u003cbr\u003eThe diagnostic feature allows the module to detect and report conditions such as open-wire or short-circuit faults, providing feedback directly to the PLC processor to identify field-side issues immediately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the input delay be adjusted?\u003c\/strong\u003e\u003cbr\u003eYes, the input delay time for the 1756-IA8D is programmable, allowing users to select between 9 or 18 milliseconds based on the specific requirements of the application to filter out input noise.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48869648498878,"sku":"1756-IA8D","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_8639dc40-383b-4fb3-b6fc-c92934f069b4.jpg?v=1788925677","url":"https:\/\/www.autooiltech.com\/es\/products\/allen-bradley-1756-ia8d-diagnostic-ac-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}