{"product_id":"slc-500-32-point-dc-input-module-1746-ib32-allen-bradley","title":"SLC 500 32-Point DC Input Module | 1746-IB32 Allen-Bradley","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1746-IB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers high-density discrete input capacity for the SLC 500 PLC platform. This module interfaces 32 separate 24V DC field devices—such as proximity sensors, limit switches, and photoelectric eyes—into a single chassis slot. By doubling the point count of standard 16-point modules, it significantly reduces the physical footprint and hardware costs of your control system. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein factory packaging, specifically supporting Series D requirements for modern SLC architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e32 Channels (Sinking)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15–30V DC @ 50°C; 15–26.4V DC @ 60°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current (5V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e103 mA (Typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current (24V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Delay (Typical)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 ms (OFF to ON)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOff-State Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 mA (Maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1500V Continuous (Channel-to-Backplane)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.20W per channel; 6.65W per module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Product Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.17 kg (0.38 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.00 kg (Includes protective logistics packaging)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximized Cabinet Space:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 32-point architecture allows you to consolidate large quantities of field wiring into fewer SLC 500 chassis slots. This prevents the need for chassis expansions or additional power supplies in dense automation environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial-Grade Noise Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-voltage isolation (1500V) separates the field-side 24V DC power from the sensitive 5V logic of the SLC backplane. This barrier protects the processor from electrical transients and common-mode noise generated by heavy industrial machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFast Response Times:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA consistent 3 ms signal delay ensures the module tracks rapid state changes from high-speed sensors. This speed supports precise timing in packaging, assembly, and high-speed sorting applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Heat Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module utilizes an efficient 24V DC sink circuit that dissipates only 0.20 Watts per channel. This low thermal profile prevents overheating in crowded control panels, maintaining system stability even at the maximum operating temperature of 60°C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of field devices are compatible with the 1746-IB32?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1746-IB32 features a \"Sinking\" input circuit. You must use \"Sourcing\" field devices (typically PNP sensors) that provide a positive 24V DC signal to the input terminal to complete the circuit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module include the wiring connector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1746-IB32 requires a high-density 40-pin connector. We recommend using the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-N3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-N4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econnectors or a pre-wired cable assembly (such as the 1746-HC series) for faster installation. Always check if your replacement needs a new connector or if you can reuse the existing field wiring arm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1746-IB32 in any slot of the SLC chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, you can install the 1746-IB32 in any available I\/O slot of a 1746 SLC chassis. However, ensure your power supply (e.g., 1746-P1, P2, or P4) can support the 103 mA current draw on the 5V rail for this and all other modules in the rack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with older SLC 5\/01 or 5\/02 processors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the 1746-IB32 is compatible with the entire SLC 500 family (5\/01 through 5\/05). Because it is a high-density module, ensure your RSLogix 500 software is updated to the version that supports 32-point I\/O addressing.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43359185862746,"sku":"1746-IB32","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/6._bdbf83ba-f338-49d2-9d26-4a8f9b2412d3.jpg?v=1778636683","url":"https:\/\/www.spareoil.com\/products\/slc-500-32-point-dc-input-module-1746-ib32-allen-bradley","provider":"SpareOil Automation","version":"1.0","type":"link"}