{"product_id":"allen-bradley-1797-ibn16-flex-ex-namur-input-module","title":"Allen-Bradley 1797-IBN16 FLEX Ex NAMUR Input Module","description":"\u003ch2\u003eAllen-Bradley 1797-IBN16 FLEX Ex NAMUR Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for NAMUR-compatible digital signal acquisition in FLEX Ex I\/O systems, the \u003cstrong\u003eAllen-Bradley 1797-IBN16\u003c\/strong\u003e (\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e FLEX Ex NAMUR Input Module) provides direct physical\/electrical execution for hazardous-area input monitoring. The module processes sixteen non-isolated sinking inputs with intrinsic safety interface characteristics for Ex-rated applications.\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\u003e1797-IBN16\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\u003e0.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFLEX Ex I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O 1797\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 non-isolated sinking inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eNAMUR compatible digital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e1000 Hz max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Current\u003c\/td\u003e\n\u003ctd\u003e1.2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state Current\u003c\/td\u003e\n\u003ctd\u003e2.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHysteresis\u003c\/td\u003e\n\u003ctd\u003e0.2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Voltage\u003c\/td\u003e\n\u003ctd\u003e7.5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Pulse Width\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;500 us on or off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Times\u003c\/td\u003e\n\u003ctd\u003e1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Base Compatibility\u003c\/td\u003e\n\u003ctd\u003e1797-TB3 or 1797-TB3S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003e16 yellow status indicators, 16 red fault indicators, 1 green module power indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e9.6 BTU\/hr max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet-IP Deterministic Network and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1797-IBN16 is part of the Allen-Bradley Flex Ex I\/O 1797 platform and operates as a high-density digital input module within an Ex-rated distributed I\/O architecture. The sixteen-channel configuration provides I\/O density scaling for hazardous-area signal acquisition while maintaining separated field wiring through compatible terminal bases. The module supports NAMUR input evaluation with selectable input delay parameters for signal conditioning in industrial control applications.\u003c\/p\u003e\n\u003cp\u003eThe module incorporates intrinsic safety classifications including Ex ia IIB\/IIC T4 and Ex ib IIB\/IIC T4 configurations. The input design supports hazardous-area device connection requirements with non-isolated sinking input circuits and defined current thresholds for NAMUR-compatible switching devices.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of input devices can be connected to the 1797-IBN16?\u003cbr\u003eA: The module accepts NAMUR-compatible digital input devices through sixteen non-isolated sinking input channels.\u003c\/p\u003e\n\u003cp\u003eQ: Is the 1797-IBN16 designed for hazardous-area installation?\u003cbr\u003eA: Yes. The module provides intrinsic safety input classifications including Ex ia IIB\/IIC T4 and Ex ib IIB\/IIC T4 configurations when installed with the appropriate FLEX Ex system components.\u003c\/p\u003e\n\u003cp\u003eQ: Which terminal bases are compatible with this input module?\u003cbr\u003eA: The 1797-IBN16 is designed for installation with 1797-TB3 or 1797-TB3S terminal bases.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1797-IBN16 using the specified FLEX Ex terminal base and verify that field wiring matches the NAMUR input requirements before energization. Maintain proper segregation between intrinsically safe circuits and non-IS wiring paths according to site electrical installation procedures.\u003c\/p\u003e\n\u003cp\u003eUse the recommended conductor size and ensure terminal connections maintain mechanical integrity. Shielded signal cables should follow plant grounding practices, with cable shields terminated according to the control system grounding design.\u003c\/p\u003e\n\u003cp\u003eVerify module power status and channel diagnostic indicators after installation. Confirm that connected field devices provide expected NAMUR current states and that input delay settings correspond to the required signal response behavior.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43787580670042,"sku":"1797-IBN16","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1797-IBN162.jpg?v=1785910766","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1797-ibn16-flex-ex-namur-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}