{"product_id":"allen-bradley-1756-iv32-a-controllogix-32-point-dc-digital-input-module","title":"Allen-Bradley 1756-IV32\/A ControlLogix 32 Point DC Digital Input Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-IV32\/A ControlLogix 32 Point DC Digital Input Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-IV32\/A\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-IV32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDigital Input Module, operates as a dedicated hardware component for 24 VDC field signal acquisition within ControlLogix platforms. The module provides 32 sourcing DC input channels with grouped isolation and backplane communication for controller-level signal processing.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\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\u003e1756-IV32\/A\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.99 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eDC voltage inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e32 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Configuration\u003c\/td\u003e\n\u003ctd\u003eSourcing input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.5 mA per point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e250 V channel-to-backplane isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGroup Configuration\u003c\/td\u003e\n\u003ctd\u003e16 points per group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e120 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay\u003c\/td\u003e\n\u003ctd\u003eConfigurable input filtering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003eModule OK and individual channel status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA, hazardous location approvals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix Digital Signal Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IV32\/A processes 32 discrete DC input signals from field devices through a high-density ControlLogix I\/O interface. The sourcing input configuration allows connection of compatible 10 to 30 VDC field devices, with input filtering parameters configurable for signal stability.\u003c\/p\u003e\n\u003cp\u003eThe module transfers input states through the ControlLogix backplane bus communication structure. I\/O density scaling allows 32 digital channels to be installed in a single chassis slot while maintaining individual channel status indication through front-panel LEDs.\u003c\/p\u003e\n\u003ch3\u003eEtherNet\/IP and ControlLogix Platform Communication\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IV32\/A operates as part of the ControlLogix distributed I\/O architecture, using the controller backplane for deterministic data exchange between the module and processor. Configuration data, input status information, and diagnostic states are managed through the Studio 5000 Logix Designer environment.\u003c\/p\u003e\n\u003cp\u003eThe module supports firmware flash compatibility within the ControlLogix platform, allowing supported firmware revisions to be maintained during system configuration updates. Input filtering settings can be adjusted to match field device switching characteristics.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many digital input channels are available on the 1756-IV32\/A module?\u003c\/strong\u003e\u003cbr\u003eA: The module provides 32 DC digital input points arranged as two groups of 16 points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What input voltage range is supported by the 1756-IV32\/A?\u003c\/strong\u003e\u003cbr\u003eA: The module accepts DC input signals from 10 to 30 VDC, with 24 VDC as the nominal operating voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What backplane power requirement applies to the module?\u003c\/strong\u003e\u003cbr\u003eA: The module requires approximately 120 mA from the 5 VDC ControlLogix chassis backplane supply.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-IV32\/A module in a compatible ControlLogix chassis slot and verify the available backplane power capacity before operation. Use appropriate field wiring terminals and confirm sourcing input polarity during installation.\u003c\/p\u003e\n\u003cp\u003eRoute DC signal wiring separately from high-voltage power cables, motor conductors, and switching circuits to reduce electrical interference. Apply proper grounding and shielding practices according to the installation environment and system wiring standards.\u003c\/p\u003e\n\u003cp\u003eVerify input group assignments, voltage levels, and input filtering configuration before commissioning. Confirm that connected field devices provide signal characteristics compatible with the module input specifications.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43612049178714,"sku":"1756-IV32\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-IV32A2.jpg?v=1783403951","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-iv32-a-controllogix-32-point-dc-digital-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}