{"product_id":"allen-bradley-1746-in16-slc-500-digital-input-module","title":"Allen-Bradley 1746-IN16 SLC 500 Digital Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-IN16 is a SLC 500 Digital AC\/DC Input Module engineered for precise discrete signal acquisition in industrial control systems. With sixteen (16) input channels and a voltage range of 24 VAC \/ VDC, this module delivers dependable performance for monitoring limit switches, push buttons, and proximity sensors. As part of the trusted SLC 500 family, the 1746-IN16 occupies a single slot in any 1746 chassis, simplifying installation and reducing panel space requirements.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eEvery parameter of the 1746-IN16 is designed to ensure accurate and repeatable operation. Below are the key specifications:\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1746-IN16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 Volts AC\/DC Sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e24 VDC \/ 24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay (AC)\u003c\/td\u003e\n\u003ctd\u003e25 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay (DC)\u003c\/td\u003e\n\u003ctd\u003e15 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e0.085 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff State Current\u003c\/td\u003e\n\u003ctd\u003e1 milliamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Current\u003c\/td\u003e\n\u003ctd\u003e8 mA @ 24V DC; 8 mA @ 24V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e100 ms in, 2.5 ms out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWatts Per Point\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Watts\u003c\/td\u003e\n\u003ctd\u003e0.425\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Watts\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Connection\u003c\/td\u003e\n\u003ctd\u003e1746-HT and 1746-HCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e10662468092743\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 discrete inputs\u003c\/strong\u003e for flexible field wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual AC\/DC operation\u003c\/strong\u003e (24 VAC\/VDC) reduces inventory requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePer-channel LED indicators\u003c\/strong\u003e provide immediate visual status for fast troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-slot design\u003c\/strong\u003e maximizes chassis space utilization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable signal delays\u003c\/strong\u003e (15 ms DC, 25 ms AC) ensure consistent response times.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustrial Applications\u003c\/h2\u003e\u003cp\u003eIn manufacturing lines, the 1746-IN16 interfaces with push buttons, selector switches, and limit switches to feed status information into the PLC. Packaging machinery uses this module to monitor sensor outputs for product presence and positioning. Additionally, the module is well-suited for material handling systems where discrete inputs from photoeyes and proximity detectors trigger conveyor operations. Its ability to handle both AC and DC signals makes it a versatile choice for retrofitting older panels.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eInstalling the 1746-IN16 is straightforward. First, ensure the SLC 500 chassis is powered down. Align the module’s male connectors with the chassis backplane bus and firmly push the module into the slot until it locks. Secure the module using the built-in screws. For wiring, use the recommended I\/O connection cables 1746-HT and 1746-HCA to connect field devices. Verify that the input voltage matches the module’s 24 VAC\/VDC rating before powering up. After installation, use the LED indicators to confirm each channel’s status.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1746-IN16 is designed for the Allen-Bradley SLC 500 platform. It can be installed in any 1746 chassis, either in the local rack with the processor or in an expansion rack. This module works with SLC 5\/01, SLC 5\/02, SLC 5\/03, SLC 5\/04, and SLC 5\/05 processors when configured appropriately. The module uses the standard SLC 500 backplane interface, so no additional adapters are required.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eTo ensure long-term reliability, periodically inspect the 1746-IN16 for dust accumulation and verify that all terminal connections remain tight. Check the LED indicators during routine maintenance to confirm proper channel operation. The module’s robust design minimizes failures, but if a channel fails, the LED will remain off, allowing quick identification. Keep spare fuses or replacement modules on hand to reduce downtime.\u003c\/p\u003e\u003ch2\u003eBuying Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing the 1746-IN16, confirm that your system uses the SLC 500 platform and that you have an available single slot in your chassis. Verify the input voltage matches your field devices. For large quantities or custom requirements, contact PLC Source PRO for availability and competitive pricing.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434680250467,"sku":"1746-IN16","price":228.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-A13_3__E5_89_AF_E6_9C_AC_f7ee28f1-df0c-493c-89a0-04585dbb04a6.jpg?v=1785767502","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-in16-slc-500-digital-input-module","provider":"PLC Source PRO","version":"1.0","type":"link"}