{"product_id":"allen-bradley-1756-in16-controllogix-digital-ac-input-module","title":"Allen-Bradley 1756-IN16 ControlLogix Digital AC Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-IN16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-IN16\u003c\/strong\u003e Digital AC Input Module, operates as a dedicated hardware component for acquiring 24 VAC field signals within ControlLogix controller platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Identification \u0026amp; Product Scope\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IN16 is a ControlLogix Digital AC Input Module designed for monitoring discrete AC voltage signals from field devices. The module provides 16 input channels with programmable input delay settings for integration into ControlLogix I\/O architectures.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003e1756-IN16\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\u003eDigital AC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\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\u003e0.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e23.3 x 18.2 x 5.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified\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\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10-30 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time\u003c\/td\u003e\n\u003ctd\u003eProgrammable 9 or 18 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Operating Current\u003c\/td\u003e\n\u003ctd\u003e5 mA at 10 VAC, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Current\u003c\/td\u003e\n\u003ctd\u003e1.2 mA at 30 VAC, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Input Current\u003c\/td\u003e\n\u003ctd\u003e2.75 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Platform\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and ControlLogix Bus Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IN16 module operates as a ControlLogix chassis-based I\/O component and exchanges input status data through the controller backplane communication structure. The module architecture supports deterministic I\/O data handling required for PLC-based automation systems.\u003c\/p\u003e\n\u003cp\u003eControlLogix I\/O density scaling allows multiple input modules to be combined within a chassis configuration while maintaining organized channel-level signal monitoring. Firmware flash compatibility and module revision management must be verified before integration into existing controller systems.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-IN16 ControlLogix Digital AC Input Module\u003c\/li\u003e\n\u003cli\u003e1 x Factory-installed terminal block compatibility interface\u003c\/li\u003e\n\u003cli\u003e1 x Product identification label with catalog number\u003c\/li\u003e\n\u003cli\u003eInstallation documentation provided according to supplier configuration\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 only in a compatible ControlLogix chassis slot.\u003c\/li\u003e\n\u003cli\u003eConfirm chassis power removal before inserting or removing the module.\u003c\/li\u003e\n\u003cli\u003eVerify module keying position to prevent incorrect hardware installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eField Wiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConnect AC field signals according to the terminal block wiring diagram.\u003c\/li\u003e\n\u003cli\u003eMaintain separation between AC input wiring and high-current power conductors.\u003c\/li\u003e\n\u003cli\u003eUse appropriate shielding and grounding practices where electrical noise is present.\u003c\/li\u003e\n\u003cli\u003eConfirm input voltage levels before applying field power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMaintenance Checks\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInspect terminal connections periodically for mechanical loosening.\u003c\/li\u003e\n\u003cli\u003eVerify input channel status through the ControlLogix controller diagnostics.\u003c\/li\u003e\n\u003cli\u003eCheck environmental conditions when operating in high-temperature or vibration areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1756-IN16 support DC input signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1756-IN16 is designed for AC discrete input signals and operates within its specified AC voltage range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many field input channels are available on this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module provides 16 independent digital AC input channels for discrete signal monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the input delay be adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The input delay setting is programmable with selectable delay values of 9 ms or 18 ms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module installed directly on the ControlLogix backplane?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module is installed in a ControlLogix chassis and communicates through the controller backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the operating voltage range of the input channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module accepts AC input signals from 10 VAC to 30 VAC according to the specified operating range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external power wiring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module receives operating power through the ControlLogix chassis backplane; field devices provide the input signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the module be replaced while the chassis is energized?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHot-swap capability depends on the installed ControlLogix system configuration and maintenance procedures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wiring practice is recommended for AC input connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eField wiring should follow industrial control standards with proper separation, grounding, and noise reduction methods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066416091309,"sku":"1756-IN16","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-IN16-0.jpg?v=1786454978","url":"https:\/\/www.maxwellplc.com\/ga\/products\/allen-bradley-1756-in16-controllogix-digital-ac-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}