{"product_id":"allen-bradley-1746-itb16-slc-500-series-fast-response-dc-sinking-input-module","title":"Allen-Bradley 1746-ITB16 SLC 500 Series Fast Response DC Sinking Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-ITB16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1746-ITB16\u003c\/strong\u003e Fast Response DC Sinking Input Module, operates as a dedicated hardware component for high-speed discrete signal acquisition within SLC 500 controller platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Identification \u0026amp; Configuration\u003c\/h3\u003e\n\u003cp\u003eThe 1746-ITB16 is a digital DC input module designed for SLC 500 chassis installation. The module provides 16 sinking input channels for 10 to 30 VDC field devices and is configured for applications requiring fast response to discrete input transitions.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Variant\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1746-ITB16\u003c\/td\u003e\n\u003ctd\u003eFast Response DC Sinking Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1746-1TB16\u003c\/td\u003e\n\u003ctd\u003eAlternate catalog reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1746-ITB16\/C\u003c\/td\u003e\n\u003ctd\u003eSeries C module reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e1746-ITB16\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFast Response DC Sinking Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e12.7 x 5.1 x 15.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e85 mA backplane current load at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC sinking input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage Maximum\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current Maximum\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Current\u003c\/td\u003e\n\u003ctd\u003e8 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Configuration\u003c\/td\u003e\n\u003ctd\u003e10 to 30 VDC sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Characteristic\u003c\/td\u003e\n\u003ctd\u003eFast response input operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSLC 500 Industrial Control Signal Processing\u003c\/h3\u003e\n\u003cp\u003eThe 1746-ITB16 uses the SLC 500 backplane communication structure to exchange input status data with the controller processor. Its fast response input circuitry is designed for discrete devices requiring shorter input transition detection time compared with standard digital input modules.\u003c\/p\u003e\n\u003cp\u003eThe module supports direct connection of sinking field devices where the input circuit detects current flow from the external device into the module input channel. Proper field wiring polarity and common terminal arrangement are required during installation.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eThe supplied configuration normally includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1746-ITB16 Fast Response DC Sinking Input Module\u003c\/li\u003e\n\u003cli\u003e1 x Factory installed terminal block interface\u003c\/li\u003e\n\u003cli\u003e1 x Module housing assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional components required for operation may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSLC 500 chassis assembly\u003c\/li\u003e\n\u003cli\u003eSLC 500 processor module\u003c\/li\u003e\n\u003cli\u003eCompatible programming software\u003c\/li\u003e\n\u003cli\u003eField wiring accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003ch4\u003eChassis Mounting\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module into an appropriate SLC 500 chassis slot.\u003c\/li\u003e\n\u003cli\u003eConfirm backplane connector alignment before applying insertion force.\u003c\/li\u003e\n\u003cli\u003eRemove power from the chassis before module replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eField Wiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that connected devices match the 10 to 30 VDC sinking input requirements.\u003c\/li\u003e\n\u003cli\u003eMaintain separation between input signal wiring and high voltage power conductors.\u003c\/li\u003e\n\u003cli\u003eUse shielded cable where electrical noise may affect fast switching signals.\u003c\/li\u003e\n\u003cli\u003eConnect field commons according to the module wiring specification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSystem Integration\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm processor compatibility with the selected SLC 500 configuration.\u003c\/li\u003e\n\u003cli\u003eCheck input addressing after installation through the controller configuration software.\u003c\/li\u003e\n\u003cli\u003eAvoid disconnecting field wiring while the module is energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhat type of input signals does the 1746-ITB16 accept?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module accepts 10 to 30 VDC digital sinking input signals from field devices connected to SLC 500 control systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHow many input channels are available on this module?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1746-ITB16 provides 16 independent digital input channels for monitoring DC field devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat is the nominal operating input voltage?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe nominal input voltage is 24 VDC, with an operating range from 10 to 30 VDC.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIs the 1746-ITB16 designed for high-speed input detection?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. The module is identified as a fast response input module for applications requiring rapid discrete signal recognition.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat is the backplane current consumption?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module requires 85 mA of backplane current load at 5 VDC according to the supplied technical data.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCan this module connect directly to AC field devices?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The 1746-ITB16 is designed for DC sinking input signals and requires compatible DC field devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDoes the module support hot swapping during operation?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SLC 500 system does not support removing or inserting modules under power. Always remove chassis power before replacement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat installation factors affect input signal quality?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCorrect polarity, proper grounding, cable routing, and separation from electrical noise sources affect signal integrity.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066405343405,"sku":"1746-ITB16","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1746-ITB16_13.jpg?v=1785144279","url":"https:\/\/www.maxwellplc.com\/ru\/products\/allen-bradley-1746-itb16-slc-500-series-fast-response-dc-sinking-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}