{"product_id":"1756-ig16-allen-bradley-controllogix-digital-dc-input-module","title":"1756-IG16 Allen-Bradley ControlLogix Digital DC Input Module","description":"\u003cp\u003eThe \u003cb\u003eAllen-Bradley 1756-IG16\u003c\/b\u003e, also cataloged as the \u003cb\u003e1756-IG16\u003c\/b\u003e Digital DC Input Module, operates as a dedicated hardware component for 5 VDC TTL discrete signal acquisition within ControlLogix system architectures.\u003c\/p\u003e\n\u003ch3\u003eProduct Nomenclature \u0026amp; Circuit Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e1756\u003c\/b\u003e: ControlLogix modular chassis backplane mounting platform.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIG\u003c\/b\u003e: Low-voltage TTL source digital DC input hardware topology.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e16\u003c\/b\u003e: 16-point discrete field signal channel allocation organized into two distinct groups of 8 points per common.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Physical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-IG16\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.28 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e23.3 x 18.3 x 5.3 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePower Dissipation: 1.4 W at 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 points (8 per common)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Input Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 VDC TTL Source\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Voltage Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.5-5.5 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Delay Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.25 ms plus selected filter time\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Off-State Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.1 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current (5 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e110 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTariff Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8537101190\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Location\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eXiamen, China\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNetwork Determinism \u0026amp; System Throughput\u003c\/h3\u003e\n\u003cp\u003eThe module processes low-voltage TTL logic transitions across local and remote chassis racks while maintaining high-efficiency backplane bus communication velocity across EtherNet\/IP deterministic networks. High-speed input filtering enables precise signal validation and I\/O density scaling without overloading controller firmware flash compatibility or backplane scan cycles.\u003c\/p\u003e\n\u003ch3\u003eShipping Package Content\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Allen-Bradley 1756-IG16 Digital DC Input Module Assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWiring \u0026amp; Enclosure Installation Mechanics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAlign module rear card guides with the designated slot in the 1756 chassis until top and bottom latches snap securely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWire field signal leads to a compatible Removable Terminal Block (RTB) or 1756 wiring interface module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSecure all TTL source input leads and ensure separate signal routing from high-voltage AC lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGround the chassis frame to main panel copper ground buses via low-impedance grounding straps.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat signal voltage level is compatible with the 1756-IG16 input module?\u003c\/p\u003e\n\u003cp\u003eThe module interfaces exclusively with 5 VDC TTL sourcing signal logic across an operating window of 4.5 to 5.5 VDC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are the 16 input channels logically grouped across internal commons?\u003c\/p\u003e\n\u003cp\u003eThe 16 discrete input channels are divided into two isolated groups, allocating 8 points per common terminal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat current load does the module draw from the 5 VDC backplane rail?\u003c\/p\u003e\n\u003cp\u003eThe unit draws 110 mA current from the chassis backplane 5 VDC supply during standard operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the total signal response time for a channel state transition?\u003c\/p\u003e\n\u003cp\u003eHardware input delay is 0.25 ms, which is added to the user-configured digital filter time in software.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum off-state current limit for field sensor inputs?\u003c\/p\u003e\n\u003cp\u003eField device off-state leakage must not exceed 4.1 mA to guarantee a reliable OFF state recognition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the 1756-IG16 module be inserted into a ControlLogix rack under power?\u003c\/p\u003e\n\u003cp\u003eYes, the module supports Removal and Insertion Under Power (RIUP) without causing chassis bus disruption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum power dissipation rating for cabinet heat load calculations?\u003c\/p\u003e\n\u003cp\u003eThe module exhibits a maximum power dissipation of 1.4 W when operating at an ambient 60 deg C limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module require a specific Removable Terminal Block for field connections?\u003c\/p\u003e\n\u003cp\u003eYes, field wiring connects via a standard 20-pin RTB assembly such as the 1756-TBCH or 1756-TBNH.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066414944429,"sku":"1756-IG16","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1756-ig16.jpg?v=1787191526","url":"https:\/\/www.maxwellplc.com\/products\/1756-ig16-allen-bradley-controllogix-digital-dc-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}