{"product_id":"allen-bradley-1746-ovp16-slc-500-digital-dc-output-module","title":"Allen-Bradley 1746-OVP16 SLC 500 Digital DC Output Module","description":"\u003ch1\u003eAllen-Bradley 1746-OVP16 SLC 500 Digital DC Output Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1746-OVP16\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OVP16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edigital DC output module, serves as a 16-point sinking output interface for 20.4-26.4 VDC load switching within SLC 500 backplane-controlled architectures. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1746-OVP16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1746-OVP16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoutput module) provides direct electrical actuation of external DC loads through scan-synchronized SLC 500 chassis communication.\u003c\/p\u003e\n\u003cp\u003eThe module executes discrete output state transitions via the 5 VDC backplane logic rail while isolating field-side switching on the 20.4-26.4 VDC output domain. Each channel operates as a current sinking output element designed for high-current DC load control.\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\u003e1746-OVP16\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane 250 mA @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDC sinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e20.4-26.4 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent per Output\u003c\/td\u003e\n\u003ctd\u003e1.5-1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent per Module\u003c\/td\u003e\n\u003ctd\u003e6.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e250 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003eON 60 ms \/ OFF 2.5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC output module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSLC 500 Backplane Communication and I\/O Density Scaling Behavior\u003c\/h3\u003e\n\u003cp\u003eThe 1746-OVP16 operates under deterministic SLC 500 backplane scan cycles where output image table updates are latched at processor scan completion. The 5 VDC backplane rail supplies module logic, while field switching is decoupled to the 20.4-26.4 VDC output stage.\u003c\/p\u003e\n\u003cp\u003eI\/O density scaling is implemented through a 16-point channel structure, where each output is independently addressable within a single module frame. The sinking configuration defines a low-side switching topology, requiring external load connection to positive supply rails.\u003c\/p\u003e\n\u003cp\u003eBackplane current draw is fixed at 250 mA, independent of output loading conditions, separating logic power consumption from field-side current flow.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1746-OVP16 support hot-swapping in an energized SLC 500 chassis?\u003cbr\u003eA: No. Module insertion or removal requires complete chassis power removal to avoid backplane disruption.\u003c\/p\u003e\n\u003cp\u003eQ: What defines the output current limitation per channel?\u003cbr\u003eA: Each channel is rated up to 1.5-1 A depending on thermal and load conditions, with total module current limited to 6.4 A.\u003c\/p\u003e\n\u003cp\u003eQ: Is output switching synchronized per channel or per module?\u003cbr\u003eA: Output switching is synchronized at module level via SLC 500 scan cycle, with channel states updated simultaneously at scan completion.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1746-OVP16 into a compatible SLC 500 rack slot ensuring full engagement with the backplane connector. Power must be removed prior to installation or removal.\u003c\/p\u003e\n\u003cp\u003eField wiring must follow sinking topology requirements, where each load is connected to a positive DC supply and the module provides the return path. Verify correct polarity before energization.\u003c\/p\u003e\n\u003cp\u003eMaintain separation between low-voltage signal wiring and high-energy switching conductors to reduce electromagnetic coupling. Ensure stable chassis grounding to provide a defined reference potential for output switching operations.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43537249730650,"sku":"1746-OVP16","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1746-OVP162.jpg?v=1782198773","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1746-ovp16-slc-500-digital-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}