{"product_id":"1746-ig16-allen-bradley-digital-dc-input-module","title":"1746-IG16 - Allen-Bradley Digital DC Input Module","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1746-IG16 Digital DC TTL Input Module Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer \u0026amp; Brand:\u003c\/strong\u003e Allen-Bradley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries \u0026amp; Model:\u003c\/strong\u003e SLC 500 Series | \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e1746-IG16\u003c\/span\u003e\u003c\/strong\u003e TTL Input Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e Sixteen (16) \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003eSourcing\u003c\/span\u003e\u003c\/strong\u003e Input Channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e4.5 to 5.5 Volts DC\u003c\/span\u003e\u003c\/strong\u003e (50mV ripple max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Response Time:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e0.25 ms (ON max), 0.5 ms (OFF max)\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 140 milliamps at 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Input Current:\u003c\/strong\u003e 3.7 mA per point at 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-State Current:\u003c\/strong\u003e 4.1 mA maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 1 Watt total (0.02W per point)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance \u0026amp; Safety Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis module delivers \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003eextremely fast signal processing\u003c\/span\u003e\u003c\/strong\u003e for high-speed digital applications.\u003c\/li\u003e\n\u003cli\u003eIt holds \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003eCSA and UL Class I, Division 2\u003c\/span\u003e\u003c\/strong\u003e certifications for hazardous environments.\u003c\/li\u003e\n\u003cli\u003eIt provides \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e1500V optical isolation\u003c\/span\u003e\u003c\/strong\u003e between field inputs and control logic.\u003c\/li\u003e\n\u003cli\u003eThe module is built to withstand \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e30G shock and 2.5G vibration\u003c\/span\u003e\u003c\/strong\u003e in demanding conditions.\u003c\/li\u003e\n\u003cli\u003eOperating temperature range is \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e32°F to 140°F (0°C to 60°C)\u003c\/span\u003e\u003c\/strong\u003e at 5-95% humidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e1746-IG16\u003c\/strong\u003e installs in one slot (except slot 0) of any \u003cstrong\u003eSLC 500\u003c\/strong\u003e chassis.\u003c\/li\u003e\n\u003cli\u003eUse the recommended \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e1746-RT25B Removable Terminal Block\u003c\/span\u003e\u003c\/strong\u003e for easy wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle with Care:\u003c\/strong\u003e Hold only by the plastic ends to prevent \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003eelectrostatic discharge (ESD) damage\u003c\/span\u003e\u003c\/strong\u003e to circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic Note:\u003c\/strong\u003e This module uses \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003einverted TTL logic\u003c\/span\u003e\u003c\/strong\u003e; a low voltage (0.8V DC or less) signals an ON state.\u003c\/li\u003e\n\u003cli\u003eKeep signal wiring under \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e50 feet (15 meters)\u003c\/span\u003e\u003c\/strong\u003e and separate from power\/communication cables.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What applications is the 1746-IG16 designed for?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is designed for \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003ehigh-speed TTL or BCD signal interfacing\u003c\/span\u003e\u003c\/strong\u003e, such as connecting encoders, electronic sensors, or digital switches to an SLC 500 PLC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Why is the response time so fast compared to other input modules?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e As a TTL module, it is optimized for \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003elogic-level signals\u003c\/span\u003e\u003c\/strong\u003e, enabling sub-millisecond response critical for counting and high-speed sensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How should I handle the module to avoid damage?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Due to ESD sensitivity, \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003ealways hold by the plastic ends\u003c\/span\u003e\u003c\/strong\u003e and avoid contact with circuitry or connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the logic convention for an 'ON' state?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It uses inverted logic. An input voltage between \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e-0.2V and +0.8V DC\u003c\/span\u003e\u003c\/strong\u003e is recognized as ON (logic 1).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What are your shipping and support policies?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e We ship from stock within 5 days via major carriers and support all products with a 30-day return guarantee.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more details on the high-speed \u003cstrong\u003eSLC 500 1746-IG16\u003c\/strong\u003e TTL module, contact our sales team.\u003cbr\u003e\u003cstrong\u003eContact Information Inquiries:\u003c\/strong\u003e \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e , \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePartner \u003cstrong\u003eNexAuto Technology Limited\u003c\/strong\u003e : \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45516873138337,"sku":"1746-IG16","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1746-IG16-1.jpg?v=1765265255","url":"https:\/\/www.autonexcontrol.com\/cs\/products\/1746-ig16-allen-bradley-digital-dc-input-module","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}