{"product_id":"1756-in16-ab-allen-bradley-controllogix-digital-ac-input-module","title":"1756-IN16 | AB Allen-Bradley | ControlLogix Digital AC Input Module","description":"\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-IN16\u003c\/strong\u003e is a \u003cstrong\u003e16-Point 24V AC Digital Input Module\u003c\/strong\u003e for the ControlLogix platform. It features \u003cstrong\u003e16 inputs organized in 2 groups of 8\u003c\/strong\u003e, with \u003cstrong\u003e250V continuous isolation\u003c\/strong\u003e between input groups and the backplane. The module accepts \u003cstrong\u003e10–30V AC\u003c\/strong\u003e signals at \u003cstrong\u003e47–63 Hz\u003c\/strong\u003e, making it suitable for interfacing with standard AC field devices such as limit switches, proximity sensors, and pushbuttons in industrial automation applications.\u003c\/p\u003e\n\n\u003ch3\u003eCore Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 1756-IN16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 16-Point AC Digital Input Module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Inputs:\u003c\/strong\u003e 16 (8 points per group, 2 groups)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Category:\u003c\/strong\u003e 24V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e 10–30V AC, 47–63 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Input Voltage:\u003c\/strong\u003e 24V AC, 50\/60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Delay Time (Off to On):\u003c\/strong\u003e Hardware delay: 10 ms max + filter time; User-selectable filter: 0, 1, or 2 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Delay Time (On to Off):\u003c\/strong\u003e Hardware delay: 10 ms max + filter time; User-selectable filter: 9 or 18 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Draw @ 5.1V:\u003c\/strong\u003e 135 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Draw @ 24V:\u003c\/strong\u003e 2 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Backplane Power:\u003c\/strong\u003e 0.56 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Dissipation (Max):\u003c\/strong\u003e 5.1 W at 60°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.32 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Allen-Bradley by Rockwell Automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical \u0026amp; Functional Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-State Voltage:\u003c\/strong\u003e 10–30V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOff-State Voltage (Max):\u003c\/strong\u003e 5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-State Current (Min):\u003c\/strong\u003e 5 mA at 10V AC, 60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-State Current (Max):\u003c\/strong\u003e 12 mA at 30V AC, 60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOff-State Current (Max):\u003c\/strong\u003e 2.75 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInrush Current (Max):\u003c\/strong\u003e 250 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Impedance (Max):\u003c\/strong\u003e 2.5 kΩ at 30V AC, 60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCyclic Update Time:\u003c\/strong\u003e 200 µs to 750 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChange of State:\u003c\/strong\u003e Software configurable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTimestamp of Inputs:\u003c\/strong\u003e ±200 µs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 250V continuous (basic insulation), inputs-to-backplane and input group-to-group; routine tested at 1350V AC for 2 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e Module status and I\/O status LEDs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Integration \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Platform:\u003c\/strong\u003e ControlLogix 1756 chassis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoftware:\u003c\/strong\u003e RSLogix 5000 \/ Studio 5000 Logix Designer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Software-configurable; no physical DIP switches required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHot Swap:\u003c\/strong\u003e Supports removal and insertion under power (RIUP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeying:\u003c\/strong\u003e Electronic keying prevents incorrect module insertion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemovable Terminal Block:\u003c\/strong\u003e 1756-TBNH (NEMA screw clamp) or 1756-TBSH (spring clamp), sold separately\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size:\u003c\/strong\u003e Single: 0.33–2.1 mm² (22–14 AWG); Double: 0.33–1.3 mm² (22–16 AWG)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Block Torque:\u003c\/strong\u003e 1.36 N·m (12 lb·in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelated Parts:\u003c\/strong\u003e 1756-IN16K (conformal coated kit), 1756-IA16 (120V AC input), 1756-IM16I (240V AC isolated input)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Operational Limits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 60°C (32°F to 140°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40°C to +85°C (-40°F to 185°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5% to 95% RH, non-condensing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 2G, 10 to 500 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock:\u003c\/strong\u003e 30G operating; 50G non-operating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmissions:\u003c\/strong\u003e CISPR 11, Group 1, Class A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESD Immunity:\u003c\/strong\u003e 6 kV contact discharge; 8 kV air discharge (IEC 61000-4-2)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRadiated RF Immunity:\u003c\/strong\u003e 10 V\/m (IEC 61000-4-3)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEFT\/B Immunity:\u003c\/strong\u003e ±4 kV at 5 kHz on signal ports (IEC 61000-4-4)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurge Transient Immunity:\u003c\/strong\u003e ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports (IEC 61000-4-5)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConducted RF Immunity:\u003c\/strong\u003e 10 V rms (IEC 61000-4-6)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Code:\u003c\/strong\u003e T3C (North American); T3 (IEC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e UL, CSA, CE, C-Tick, ATEX, FM (Class I Division 2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cp\u003eWidely deployed in manufacturing, material handling, packaging, automotive assembly, food \u0026amp; beverage processing, and general industrial automation where 24V AC digital inputs from limit switches, proximity sensors, pushbuttons, and selector switches are required.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is the 1756-IN16 used for?\u003c\/h4\u003e\n\u003cp\u003eIt is a \u003cstrong\u003e16-point 24V AC digital input module\u003c\/strong\u003e for ControlLogix systems, interfacing with AC field devices such as limit switches, proximity sensors, and pushbuttons.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the difference between 1756-IN16 and 1756-IA16?\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-IN16\u003c\/strong\u003e accepts \u003cstrong\u003e10–30V AC\u003c\/strong\u003e (24V AC nominal). The \u003cstrong\u003e1756-IA16\u003c\/strong\u003e accepts \u003cstrong\u003e74–132V AC\u003c\/strong\u003e (120V AC nominal). Choose based on your field device voltage.\u003c\/p\u003e\n\n\u003ch4\u003eWhat terminal block do I need?\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-TBNH\u003c\/strong\u003e (20-pin NEMA screw clamp) or \u003cstrong\u003e1756-TBSH\u003c\/strong\u003e (20-pin spring clamp) removable terminal block is required and sold separately.\u003c\/p\u003e\n\n\u003ch4\u003eCan I hot-swap this module?\u003c\/h4\u003e\n\u003cp\u003eYes — the 1756-IN16 supports \u003cstrong\u003eRIUP\u003c\/strong\u003e (removal and insertion under power) when used in a compatible ControlLogix chassis.\u003c\/p\u003e\n\n\u003ch4\u003eWhat are the related part numbers?\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1756-IA16 — 16-point 120V AC digital input\u003c\/li\u003e\n  \u003cli\u003e1756-IM16I — 16-point 240V AC isolated digital input\u003c\/li\u003e\n  \u003cli\u003e1756-IN16 — 16-point 24V AC digital input (this part)\u003c\/li\u003e\n  \u003cli\u003e1756-IN16K — Conformal coated version with terminal block kit\u003c\/li\u003e\n  \u003cli\u003e1756-TBNH — 20-pin NEMA screw clamp terminal block\u003c\/li\u003e\n  \u003cli\u003e1756-TBSH — 20-pin spring clamp terminal block\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53684220919992,"sku":"1756-IN16","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-IB16ISOE_2.png?v=1782974518","url":"https:\/\/www.globalpetroparts.com\/products\/1756-in16-ab-allen-bradley-controllogix-digital-ac-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}