{"product_id":"allen-bradley-1756-ia16-controllogix-ac-input-module-16-points","title":"Allen-Bradley 1756-IA16 ControlLogix AC Input Module – 16 Points","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1756-IA16 is a 16-point digital AC input module from the ControlLogix platform, engineered for reliable signal acquisition in demanding industrial environments. It interfaces with discrete devices such as limit switches, pushbuttons, and auxiliary contacts, converting 120VAC signals into logic-level data for your PLC. With a wide operating voltage range of 74-132VAC and a frequency range of 47-63 Hz, this module ensures stable performance across varying power conditions.\u003c\/p\u003e\u003cp\u003eDesigned for seamless integration into any ControlLogix chassis, the 1756-IA16 offers two isolated groups of eight inputs each, providing flexible wiring and simplified troubleshooting. Its user-selectable input filters (9 ms or 18 ms for ON transitions; 1 ms or 2 ms for OFF transitions) allow you to tailor response times to your specific application needs, reducing nuisance trips caused by electrical noise.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe following table summarizes the key parameters of the 1756-IA16, based on official Rockwell Automation data:\u003c\/p\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 \/ Allen-Bradley\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1756-IA16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital AC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 (2 groups of 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e120VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e74-132VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-state Current (min)\u003c\/td\u003e\n\u003ctd\u003e5 mA @ 79VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-state Current (max)\u003c\/td\u003e\n\u003ctd\u003e13 mA @ 132VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Current (max)\u003c\/td\u003e\n\u003ctd\u003e2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCyclic Update Time\u003c\/td\u003e\n\u003ctd\u003e200 µs – 750 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay – ON transition\u003c\/td\u003e\n\u003ctd\u003eHardware: 8 ms max + filter (9 or 18 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay – OFF transition\u003c\/td\u003e\n\u003ctd\u003eHardware: 10 ms max + filter (1 or 2 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1VDC)\u003c\/td\u003e\n\u003ctd\u003e100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24VDC)\u003c\/td\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Backplane Power\u003c\/td\u003e\n\u003ctd\u003e0.58 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (max)\u003c\/td\u003e\n\u003ctd\u003e5.8 W @ 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e18.41 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemovable Terminal Block\u003c\/td\u003e\n\u003ctd\u003e1756-TBNH or 1756-TBSH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\u003cp\u003eThe 1756-IA16 is ideal for monitoring AC-powered devices in a wide range of industries:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing lines:\u003c\/strong\u003e Detect the status of motor starters, solenoid valves, and conveyor presence sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial handling:\u003c\/strong\u003e Monitor limit switches and safety interlocks on cranes and hoists.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess control:\u003c\/strong\u003e Interface with legacy 120VAC control circuits in chemical or food processing plants.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThanks to its robust 74-132VAC input range, the 1756-IA16 tolerates voltage fluctuations common in industrial power supplies, minimizing false readings and downtime.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstalling the 1756-IA16 is straightforward:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eInsert the module into any ControlLogix chassis slot. It is compatible with all ControlLogix chassis.\u003c\/li\u003e\n\u003cli\u003eSelect an appropriate removable terminal block (1756-TBNH or 1756-TBSH) and wire the field inputs according to your wiring diagram.\u003c\/li\u003e\n\u003cli\u003eConfigure the module in your ControlLogix programming software. Set the input filter times (9\/18 ms for ON, 1\/2 ms for OFF) based on your signal characteristics.\u003c\/li\u003e\n\u003cli\u003eApply power and verify channel status via the front-panel LEDs.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eEnsure that the AC supply is within the rated range (74-132VAC) and that all wiring complies with local electrical codes.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe 1756-IA16 is built for long service life with minimal maintenance. However, periodic checks are recommended:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInspect terminal block connections for tightness and signs of corrosion every 6-12 months.\u003c\/li\u003e\n\u003cli\u003eKeep the module enclosure clean and free of dust to maintain proper airflow and cooling.\u003c\/li\u003e\n\u003cli\u003eVerify that the backplane power supply is stable and within specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRoutine inspections help prevent unexpected failures and extend the module's operational life, reducing total cost of ownership.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1756-IA16 is designed exclusively for the ControlLogix platform. It works with any ControlLogix chassis and is fully compatible with Rockwell Automation's Studio 5000 Logix Designer software. The module does not require any external power supply other than the backplane, simplifying integration.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify that your application requires 120VAC input signals and that your chassis has an available slot. Confirm the terminal block type (1756-TBNH or 1756-TBSH) you need, as these are sold separately. For genuine, factory-tested Allen-Bradley 1756-IA16 modules, visit PLC Source PRO for competitive pricing and fast shipping.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434905596003,"sku":"1756-IA16","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1756-2WS_6ae6bf48-be78-43cd-85e6-992576c9abc6.jpg?v=1785778645","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/allen-bradley-1756-ia16-controllogix-ac-input-module-16-points","provider":"PLC Source PRO","version":"1.0","type":"link"}