{"product_id":"allen-bradley-1794-of4i-flex-i-o-isolated-analog-output-module","title":"Allen-Bradley 1794-OF4I Flex I\/O Isolated Analog Output Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1794-OF4I is a Flex I\/O isolated analog output module designed for precise control in demanding industrial environments. This module provides four isolated analog output channels, supporting both current and voltage signals, making it a versatile choice for a wide range of automation applications.\u003c\/p\u003e\u003cp\u003eWith a 15-bit plus sign resolution and a fast update rate, the 1794-OF4I ensures accurate and responsive output control. Its isolated channels help protect against ground loops and electrical noise, enhancing system reliability.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Channels:\u003c\/strong\u003e 4 isolated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Types:\u003c\/strong\u003e 4-20 mA, 0-20 mA, ±10 VDC, 0-10 VDC, ±5 VDC, 0-5 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 15 bits plus sign (0.320 mV\/cnt voltage, 0.656 mA\/cnt current)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 2.5\/5.0 ms all channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep Response:\u003c\/strong\u003e \u0026lt;25 µs to 63% of full scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal DC Supply:\u003c\/strong\u003e 24 V DC nominal, 19.2–31.2 V DC range (includes 5% AC ripple)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN Rail\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\u003eOperating Shock:\u003c\/strong\u003e 30 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 120V Continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexBus Current:\u003c\/strong\u003e 50 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 16 BTU\/hr @ 31.2V DC max\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cp\u003eThe 1794-OF4I delivers high accuracy and flexibility. Its isolated channels prevent interference between outputs, which is critical in mixed-signal environments. The module supports user-configurable output ranges, allowing adaptation to various field devices without additional hardware.\u003c\/p\u003e\u003cp\u003eWith a resolution of 15 bits plus sign, the module provides fine granularity for precise control. The fast update rate of 2.5\/5.0 ms ensures real-time responsiveness, while the \u0026lt;25 µs step response minimizes lag in dynamic processes.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThis module excels in applications requiring reliable analog output control, such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProcess control systems regulating valves, dampers, and actuators.\u003c\/li\u003e\n\u003cli\u003eManufacturing lines where precise speed or position control is essential.\u003c\/li\u003e\n\u003cli\u003eTest and measurement setups needing accurate signal generation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the 1794-OF4I on a DIN rail. Connect the external 24V DC supply within the 19.2–31.2V DC range. Use compatible terminal bases (1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, 1794-TBN) for wiring. Configure output ranges via the control system software.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe module is factory-calibrated and designed for long-term reliability. Its robust construction withstands vibration up to 5g and shock up to 30g. Periodic inspection of connections and environmental conditions (temperature, humidity) ensures consistent performance.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1794-OF4I works with any Flex I\/O communication adapter, integrating seamlessly into Rockwell Automation systems. It is compatible with 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN terminal bases.\u003c\/p\u003e\u003ch2\u003eBuying Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your system's compatibility with Flex I\/O and the required terminal base. Ensure the external supply matches the 24V DC nominal. PLC Source PRO offers this module with genuine Rockwell Automation quality and competitive pricing.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44454094700643,"sku":"1794-OF4I","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1794-ACN15_202_18a28fce-bbc9-45ae-a3a3-f6ed66e6ebbe.jpg?v=1786122011","url":"https:\/\/www.plcsourcepro.com\/he\/products\/allen-bradley-1794-of4i-flex-i-o-isolated-analog-output-module","provider":"PLC Source PRO","version":"1.0","type":"link"}