{"product_id":"1769-ia8i-allen-bradley-compact-i-o-discrete-input-module","title":"1769-IA8I Allen-Bradley Compact I\/O Discrete Input Module","description":"\u003ch2\u003eAllen-Bradley 1769-IA8I Compact I\/O Individually Isolated Discrete Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-IA8I\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-IA8I\u003c\/strong\u003e Discrete Input Module, operates as a dedicated hardware component for 120 VAC discrete signal acquisition within CompactLogix and MicroLogix 1500 controller platforms. The module provides eight individually isolated input channels with 79-132 VAC operating range, DIN rail or panel mounting support, and backplane communication through the 1769 Compact I\/O architecture.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-IA8I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.33 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSingle-slot Compact I\/O module width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e33.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eCompactLogix \/ 1769 Compact I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eIndividually isolated discrete input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 isolated input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e100\/120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e79-132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time OFF to ON\u003c\/td\u003e\n\u003ctd\u003e20 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current at 5.1 V\u003c\/td\u003e\n\u003ctd\u003e90 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current at 24 V\u003c\/td\u003e\n\u003ctd\u003e1.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e7.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Method\u003c\/td\u003e\n\u003ctd\u003eDIN rail or panel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003eSingle slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and I\/O Bus Integration Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1769-IA8I is designed for the 1769 Compact I\/O platform and communicates with CompactLogix controllers through the local I\/O bus interface. The module provides eight individually isolated AC input channels, allowing separate field signal acquisition without direct electrical connection between input points. The I\/O density scaling capability supports compact controller architectures requiring multiple discrete AC input points within limited panel space.\u003c\/p\u003e\n\u003cp\u003eThe module uses plug-in connection architecture and supports distributed field wiring through the Compact I\/O terminal arrangement. Input switching behavior is processed through the module hardware with a specified OFF to ON input delay time of 20 ms.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: How many input channels are available on the Allen-Bradley 1769-IA8I module?\u003cbr\u003eA: The module provides eight individually isolated discrete input channels for 120 VAC field signal acquisition.\u003c\/p\u003e\n\u003cp\u003eQ: What controller platforms support the 1769-IA8I module?\u003cbr\u003eA: The module is compatible with CompactLogix controllers and MicroLogix 1500 controller systems using the 1769 Compact I\/O architecture.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane current requirement of the module?\u003cbr\u003eA: The module requires 90 mA at 5.1 VDC backplane power and 1.4 A at 24 VDC backplane power according to the provided specifications.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1769-IA8I module on a compatible 1769 Compact I\/O assembly using DIN rail or panel mounting methods. Verify that field wiring voltage levels match the 79-132 VAC input range before connection.\u003c\/p\u003e\n\u003cp\u003eRoute AC input wiring separately from low-level analog or communication cables to reduce electrical interference. Maintain proper terminal identification during installation to prevent incorrect field signal connection. Use appropriate grounding practices for the control cabinet and connect cable shields according to the system grounding design.\u003c\/p\u003e\n\u003cp\u003eConfirm controller compatibility, slot configuration, and available backplane power capacity before energizing the I\/O assembly.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43661989019738,"sku":"1769-IA8I","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1769-IA8I2.jpg?v=1784101037","url":"https:\/\/www.plcmasters.com\/products\/1769-ia8i-allen-bradley-compact-i-o-discrete-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}