{"product_id":"1756-ig16-allen-bradley-controllogix-16-point-ttl-input-module","title":"1756-IG16 Allen-Bradley ControlLogix 16-Point TTL Input Module","description":"\u003ch2 style=\"color: #003366; font-weight: bold; margin-bottom: 12px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333;\"\u003eThe \u003cstrong style=\"color: #003366;\"\u003e1756-IG16\u003c\/strong\u003e is a 16-point Digital DC Input Module from Allen-Bradley’s premier ControlLogix automation platform. Engineered for precision low-voltage sensing, this high-reliability module interfaces directly with 5V DC TTL (Transistor-Transistor Logic) source devices. Built into a compact card housing with a physical net weight of \u003cstrong\u003e0.32 kg\u003c\/strong\u003e, it slots securely into any standard ControlLogix chassis to handle fast-switching, low-power instrumentation and solid-state circuitry across demanding industrial architectures.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eKey Advantages\u003c\/h2\u003e\n\u003cul style=\"font-size: 14px; line-height: 1.5; color: #333333; padding-left: 20px; margin-bottom: 15px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eTTL Voltage Compatibility:\u003c\/strong\u003e Specifically optimized to handle narrow 4.5 to 5.5 Volt DC operating windows, allowing direct integration with microelectronics and TTL logic boards without interposing components.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eConfigurable Signal Filtering:\u003c\/strong\u003e Combines an ultra-fast hardware input delay time of 0.25 milliseconds with user-selected digital filter periods to effectively eliminate field contact bounce and electrical line noise.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eHigh Power-to-Weight Efficiency:\u003c\/strong\u003e Delivers high-density 16-point signal isolation inside an exceptionally light \u003cstrong\u003e0.32 kg\u003c\/strong\u003e form factor, maintaining low structural load over modular multi-slot chassis backplanes.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eRugged Industrial Protection:\u003c\/strong\u003e Features an IEC IP20 touch-safe housing rating alongside a broad operating temperature tolerance spanning from -20 to 60 °C (-4 to 140 °F).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #003366; font-size: 14px; color: #333333;\"\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9; width: 35%;\"\u003eProduct Model\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e1756-IG16\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eManufacturer \/ Brand\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eModule Classification\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003eDigital DC Input Module (ControlLogix System)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eTotal Input Capacity\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e16 Points (Grouped dynamically at 9 per common)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eNominal Input Voltage\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e5 Volts DC (TTL Source)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eOperating Window\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e4.5 to 5.5 Volts DC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eBackplane Current Load\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e110 mA at 5 Volts DC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eMaximum Power Dissipation\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e1.4 Watts maximum at 60 °C\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eHardware Net Weight\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e0.32 kg (Approx. 0.71 lbs)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eTerminal Interface\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003eScrew-Type Removable Terminal Block (RTB)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eEnvironmental Tolerances\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e5% to 95% Non-Condensing Relative Humidity\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eQuick Installation Tips\u003c\/h2\u003e\n\u003cul style=\"font-size: 14px; line-height: 1.5; color: #333333; padding-left: 20px; margin-bottom: 15px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eChassis Safety Insertion:\u003c\/strong\u003e Always disconnect the main power grid from the control rack before seating or extracting the module to avoid high-voltage transients on the backplane tracks.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eTTL Wiring Distance:\u003c\/strong\u003e Keep 5V DC TTL field wires as short as possible and route them away from high-voltage AC motor lines to prevent electromagnetic induction from causing false logic state changes.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eRTB Terminal Mounting:\u003c\/strong\u003e Fasten your field circuits via the compatible screw-type Removable Terminal Block. Ensure the \u003cstrong\u003e0.32 kg\u003c\/strong\u003e module clicks firmly into the chassis guide rails for proper backplane bus seating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ1: What exactly does a \"9 per common\" layout mean for this 16-point card?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA1: The 16 input channels are internally split across two isolated reference groups. This wiring method uses shared common return paths to reduce the number of field terminal connections while keeping separate groups electronically isolated.\u003c\/p\u003e\n\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ2: Can this module process standard 24V DC industrial proximity sensor inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA2: No. The 1756-IG16 is engineered strictly for 5V TTL logic levels (4.5 to 5.5V DC). Applying 24V DC to these inputs will instantly over-stress the circuits and permanently damage the card's internal optocouplers.\u003c\/p\u003e\n\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ3: How does the maximum off-state leakage current affect my field devices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA3: The module has a maximum off-state input current limit of 4.1 mA. Connected electronic sensors must drop below this current threshold when turned off to guarantee the PLC reliably switches to a low\/off logic state.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050297655428,"sku":"1756-IG16","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-IG16-1.jpg?v=1782745808","url":"https:\/\/www.etowonauto.com\/uz\/products\/1756-ig16-allen-bradley-controllogix-16-point-ttl-input-module","provider":"Etowon Auto","version":"1.0","type":"link"}