{"product_id":"1794-ob16d-industrial-automation-module-by-allen-bradley","title":"1794-OB16D Industrial Automation Module by Allen-Bradley","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eIn demanding industrial environments, reliable output control is critical. The \u003cstrong\u003eAllen-Bradley 1794-OB16D\u003c\/strong\u003e Flex I\/O Digital Output Module w\/ Diagnostics delivers precise 24V DC switching with built-in fault detection, minimizing downtime and simplifying maintenance. This diagnostic module detects, indicates, and reports open or shorted field devices or wiring, allowing rapid troubleshooting.\u003c\/p\u003e\u003cp\u003ePart of the Rockwell Automation FLEX family, the \u003cstrong\u003e1794-OB16D\u003c\/strong\u003e offers 16 nonisolated current-sourcing outputs rated at 8.0A total (500mA per channel). Its compact, DIN-rail-mountable design supports hot insertion\/removal, reducing system restart time. Choose this module to enhance operational efficiency and reduce unplanned outages.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability:\u003c\/strong\u003e Detects and reports open\/short circuit conditions on field wiring, accelerating fault resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Outputs:\u003c\/strong\u003e 16 nonisolated outputs in a single module save panel space and reduce wiring complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Electrical Ratings:\u003c\/strong\u003e 24V DC nominal output voltage, 500mA per channel, and 8.0A per module ensure reliable switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Response:\u003c\/strong\u003e 0.5 ms output signal delay enables responsive control loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Swap Ready:\u003c\/strong\u003e Modules can be inserted or removed under power without direct field wiring, minimizing downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e 16 yellow LEDs provide per-channel status, simplifying visual diagnostics.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\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\u003ePart Number \/ Catalog No.\u003c\/td\u003e\n\u003ctd\u003e1794-OB16D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O Digital Output Module w\/ Diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e16 Nonisolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage (nom.)\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e8.0A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state Current (max.)\u003c\/td\u003e\n\u003ctd\u003e500mA per Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Leakage (max.)\u003c\/td\u003e\n\u003ctd\u003e0.5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Delay\u003c\/td\u003e\n\u003ctd\u003e0.5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexbus Current\u003c\/td\u003e\n\u003ctd\u003e60mA @ 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.8W @ 31.2V DC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e16.4 BTU\/hr. @ 31.2V DC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e10612598305961\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e1794-OB16D\u003c\/strong\u003e excels in material handling, packaging, and process control systems where reliable discrete output control is essential. For example, in a bottling line, it drives solenoid valves and actuator lamps, while its diagnostics immediately flag a faulty valve coil, preventing product jams.\u003c\/p\u003e\u003cp\u003eIn a wastewater treatment plant, the module controls pump start\/stop sequences. The diagnostic feature detects a shorted pump motor contactor, enabling rapid replacement and avoiding overflow incidents. Its 0.5 ms delay ensures precise timing for critical interlocks.\u003c\/p\u003e\u003cp\u003eFor retrofitting older relay panels, the \u003cstrong\u003e1794-OB16D\u003c\/strong\u003e provides a compact, intelligent upgrade. Its hot-swap capability allows replacing modules without shutting down the entire line, directly reducing production loss.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the module on a standard DIN rail by snapping it into place. Connect the terminal base (compatible with 1794-TB3, 1794-TB3S, or 1794-TBKD) to establish field wiring. The module communicates via the Flexbus backplane; ensure proper bus termination and addressing. For diagnostics to function, connect field devices per the wiring diagram. Always verify supply voltage (10–31.2V DC) and polarity before power-up.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine inspections should focus on LED status indicators; a steady yellow indicates normal operation, while blinking may signal a fault. Check field wiring for loose connections or moisture ingress, as these are common failure points. The module operates reliably in 0–55°C (32–131°F) and 5–95% noncondensing humidity, making it suitable for most industrial environments. Its diagnostic capabilities reduce troubleshooting time, contributing to lower overall maintenance costs and extended service life.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e1794-OB16D\u003c\/strong\u003e integrates seamlessly into Rockwell Automation FLEX I\/O systems. It supports multiple communication protocols including ControlNet, DeviceNet, EtherNet\/IP, and Universal Remote I\/O via an appropriate adapter. This flexibility allows connection to Allen-Bradley PLCs (e.g., ControlLogix, CompactLogix) and third-party systems. Ensure your chosen adapter matches the network type and configure the module’s address accordingly.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your system’s voltage and current requirements against the module’s specs. Confirm the terminal base compatibility and available Flexbus current (60mA @ 5V DC) to avoid overloading. For extreme environments, consider XT versions. When sourcing replacement or new modules, trust \u003cstrong\u003ePLC Source PRO\u003c\/strong\u003e for genuine Allen-Bradley parts, competitive pricing, and fast delivery. Ensure the part number matches your existing system to guarantee seamless installation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44454084313187,"sku":"1794-OB16D","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1794-ACN15_202_c3aa32cc-d0bc-44d0-b0e8-57afd4cd85d3.jpg?v=1786121282","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/1794-ob16d-industrial-automation-module-by-allen-bradley","provider":"PLC Source PRO","version":"1.0","type":"link"}