{"product_id":"allen-bradley-1794-ie8-industrial-automation-module-heavy-duty","title":"Allen-Bradley 1794-IE8 Industrial Automation Module - Heavy-Duty","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWhen your control system needs reliable analog signal acquisition, the Allen-Bradley 1794-IE8 Flex I\/O analog input module delivers eight single-ended, user-configurable channels that accept 0–20 mA, 4–20 mA, ±10 VDC, and 0–10 VDC signals. Part of the Flex I\/O family, the 1794-IE8 interfaces seamlessly with Flex I\/O communication adapters and terminal bases to build a distributed I\/O architecture.\u003c\/p\u003e\u003cp\u003eThis high-density module is engineered for industrial environments where accuracy and durability matter. With a successive approximation conversion type and 16-bit 2’s complement left-justified data format, it ensures precise data representation for your PLC or DCS.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1794-IE8 offers the following key parameters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo. of inputs:\u003c\/strong\u003e Eight (8) single-ended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput type:\u003c\/strong\u003e 0–20 mA, 4–20 mA, ±10 VDC, 0–10 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 12 bits unipolar; 11 bits plus sign bipolar (voltage: 2.56 mV\/cnt unipolar, 5.13 mV\/cnt bipolar; current: 5.13 µA\/cnt)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsolute accuracy:\u003c\/strong\u003e 0.20% full scale @ 25°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy drift with temperature:\u003c\/strong\u003e Voltage terminal 0.00428% FS\/°C; current terminal 0.00407% FS\/°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion rate:\u003c\/strong\u003e 256 µs (all channels)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal DC supply:\u003c\/strong\u003e 24V DC nominal; range 10.0…31.2V DC (includes 5% AC ripple)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexBus current:\u003c\/strong\u003e 60 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower dissipation:\u003c\/strong\u003e 3.0W at 31.2V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal dissipation:\u003c\/strong\u003e 10.2 BTU\/hour at 31.2V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation voltage:\u003c\/strong\u003e 50V continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e 0 to 55°C (32 to 131°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage temperature:\u003c\/strong\u003e –40 to 85°C (–40 to 185°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 5g @ 10 to 500 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEight single-ended channels reduce wiring complexity and save space.\u003c\/li\u003e\n\u003cli\u003eSupports both current and voltage signals, offering flexibility for various field instruments.\u003c\/li\u003e\n\u003cli\u003eSuccessive approximation conversion ensures fast and stable readings.\u003c\/li\u003e\n\u003cli\u003eNo calibration required beyond factory settings, simplifying maintenance.\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple terminal bases (1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS) for easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1794-IE8 is ideal for process control, manufacturing automation, and machine monitoring. It interfaces with field transmitters, analog indicating instruments, recorders, and process loop controllers. For example, in a chemical plant, the module captures 4–20 mA signals from pressure transmitters, enabling precise process regulation. In a packaging line, it reads 0–10 VDC from position sensors to synchronize motion control.\u003c\/p\u003e\u003cp\u003eBecause of its high accuracy (0.20% FS) and temperature stability, the 1794-IE8 suits applications where consistent performance across temperature variations is critical.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the 1794-IE8 on a DIN rail using a compatible terminal base (1794-TB2, -TB3, -TB3S, -TB3T, or -TB3TS). Connect the external DC supply (24V DC nominal, range 10.0–31.2V DC) and route field wiring per the terminal base's wire size specifications. The module's green\/red power\/status indicator helps confirm proper operation. No calibration is required.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1794-IE8 works with Flex I\/O communication adapters for Ethernet, ControlNet, and Remote I\/O networks, integrating easily into Rockwell Automation systems. It also pairs with any controller that supports Flex I\/O architecture, making it a versatile choice for system expansion or upgrades.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eWith no calibration needs, the 1794-IE8 reduces downtime and maintenance costs. Its robust design withstands vibration up to 5g and temperatures from 0 to 55°C, ensuring reliable operation in demanding environments. Periodic inspection of connections and terminal bases is recommended to maintain signal integrity.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your required input signal types and terminal base compatibility. The 1794-IE8 is available now at PLC Source PRO, a trusted supplier of industrial automation spares. Ensure you order the correct catalog number 1794-IE8 for your application.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44454064717923,"sku":"1794-IE8","price":211.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1794-ACN15_202_41dcfb52-72fa-4088-8b3f-be20773dcdf6.jpg?v=1786119327","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/allen-bradley-1794-ie8-industrial-automation-module-heavy-duty","provider":"PLC Source PRO","version":"1.0","type":"link"}