{"product_id":"1756-ib16dk-allen-bradley-controllogix-digital-dc-diagnostic-input-module","title":"1756-IB16DK | Allen Bradley | ControlLogix Digital DC Diagnostic Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1756-IB16DK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance digital DC input module within the ControlLogix platform. It provides 16 individual diagnostic input points that detect and report field-side faults, such as open wire or short circuit conditions. This module features a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eK-suffix conformal coating\u003c\/strong\u003e, providing an essential layer of protection against moisture, dust, and corrosive chemical vapors. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ready for integration into mission-critical control architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IB16DK operates within precise electrical parameters to ensure logic accuracy:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eControlLogix\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Diagnostic Inputs (Sink)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12-24 Volts DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10-30 Volts DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Delay Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4ms + hardware filter time\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Power Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5.8 Watts @ 60°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current (5V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRemovable Terminal Block\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-TBCH or 1756-TBS6H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConformal Coated (K-Version)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IB16DK addresses specific industrial pain points through advanced hardware design:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReal-Time Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module identifies wire breaks and short circuits at the individual point level. This eliminates hours of manual troubleshooting by pinpointing the exact location of field-side electrical failures directly in the Studio 5000 environment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrosive Environment Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \"K\" designation signifies factory-applied conformal coating. This protects the internal circuitry from \"creeping\" corrosion in wastewater treatment plants, paper mills, and oil refineries, significantly extending the mean time between failures (MTBF).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Signal Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA 4ms hardware delay combined with user-configurable software filters prevents \"contact bounce\" and electrical noise from triggering false logic states.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports Removable Terminal Blocks (RTB). Maintenance teams can replace a faulty module without disconnecting field wiring, reducing mean time to repair (MTTR) during critical system outages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the 'K' in 1756-IB16DK?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 'K' suffix indicates that the module features a conformal coating. This specialty resin layer shields the PCB from humidity and environmental contaminants, making it the standard choice for harsh or \"dirty\" industrial locations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support \"Sourcing\" field devices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1756-IB16DK is a \"Sink\" input module. The field device must provide (Source) the positive voltage to the module input terminals to complete the circuit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal blocks should I use for this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module requires either the 1756-TBCH (36-pin Cage Clamp) or the 1756-TBS6H (36-pin Spring Clamp). These must be purchased separately if you are not reusing existing blocks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace a standard 1756-IB16D with this 1756-IB16DK?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1756-IB16DK is functionally identical to the 1756-IB16D but includes the added benefit of conformal coating. It fits the same chassis slot and uses the same I\/O configuration in your PLC program.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52788542013749,"sku":"1756-IB16DK","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1756-IB16ISOE2__1_55c9de8e-cbdb-4760-a2d8-e96feb610c9c.jpg?v=1777343070","url":"https:\/\/www.5gplc.com\/products\/1756-ib16dk-allen-bradley-controllogix-digital-dc-diagnostic-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}