{"product_id":"1746-ia16-allen-bradley-slc-500-series-digital-input-module","title":"1746-IA16 Allen-Bradley SLC 500 Series Digital Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-IA16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1746-IA16\u003c\/strong\u003e Digital Input Module, operates as a dedicated hardware component for acquiring 85-132 VAC discrete field signals within the Allen-Bradley SLC 500 control system. The module provides 16 AC input channels for SLC 500 backplane communication.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1746-IA16 is a 16 point AC digital input module designed for the SLC 500 modular controller platform. It receives ON\/OFF field voltage signals within the specified AC input range and transfers input status data through the SLC 500 backplane.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1746-IA16\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\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003e16 Point AC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMalaysia, Japan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e24.5 x 16.5 x 5.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eDigital AC Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e85-132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eSLC 500 Backplane Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eSLC 500 Chassis Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Platform Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1746-IA16 uses the SLC 500 backplane communication structure for deterministic transfer of digital input states between the I\/O module and the processor unit. The module supports SLC 500 I\/O density scaling by adding discrete input channels within the modular chassis configuration.\u003c\/p\u003e\n\u003cp\u003eThe Allen-Bradley SLC 500 architecture manages module addressing and data exchange through the backplane bus, allowing configured I\/O modules to operate within the same controller rack.\u003c\/p\u003e\n\u003ch3\u003eBackplane Bus Communication Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe SLC 500 platform uses a dedicated backplane communication system for module data transfer. The 1746-IA16 receives field input signals, converts AC voltage states into controller-readable digital data, and transfers the processed status information through the chassis backplane.\u003c\/p\u003e\n\u003cp\u003eFirmware compatibility and processor communication support depend on the installed SLC 500 controller hardware and system configuration.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1746-IA16 SLC 500 16 Point AC Input Module\u003c\/li\u003e\n\u003cli\u003e1 x Digital input module assembly\u003c\/li\u003e\n\u003cli\u003e1 x Technical installation reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SLC 500 chassis, processor, power supply, terminal block, and communication modules are not included unless specified separately.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eModule Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module into a compatible Allen-Bradley SLC 500 chassis slot.\u003c\/li\u003e\n\u003cli\u003eVerify chassis power is removed before inserting or removing the module.\u003c\/li\u003e\n\u003cli\u003eConfirm module positioning and mechanical alignment before startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eField Wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect AC field devices according to the module input voltage requirements.\u003c\/li\u003e\n\u003cli\u003eSeparate AC input wiring from low voltage communication wiring where possible.\u003c\/li\u003e\n\u003cli\u003eVerify field signal voltage remains within the specified 85-132 VAC range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the processor configuration matches the installed I\/O module type.\u003c\/li\u003e\n\u003cli\u003eVerify correct slot addressing before downloading the controller program.\u003c\/li\u003e\n\u003cli\u003eCheck input status operation during commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHow many input channels are available on the 1746-IA16?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module provides 16 digital AC input points for connection to discrete field devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat input voltage does the 1746-IA16 accept?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module accepts AC input signals from 85 VAC to 132 VAC with an operating frequency range of 47-63 Hz.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhich controller platform uses the 1746-IA16?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module is designed for the Allen-Bradley SLC 500 modular control platform.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHow does the module communicate with the processor?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module transfers input data through the SLC 500 chassis backplane bus interface.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCan the module be installed in any SLC 500 chassis slot?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstallation depends on the selected SLC 500 chassis configuration and controller system layout.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the module provide analog signal measurement?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The 1746-IA16 is a discrete AC input module and provides ON\/OFF signal detection only.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eShould power be removed before module replacement?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. Power should normally be removed before installing or removing SLC 500 I\/O modules.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat type of field devices can connect to this module?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module is designed for AC-powered discrete devices that provide compatible voltage switching signals.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066403770541,"sku":"1746-IA16","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1746-IA16_13.jpg?v=1785140608","url":"https:\/\/www.maxwellplc.com\/products\/1746-ia16-allen-bradley-slc-500-series-digital-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}