{"product_id":"allen-bradley-1746-iv16-c-digital-input-module","title":"Allen-Bradley 1746-IV16\/C Digital Input Module","description":"\u003ch1\u003eAllen-Bradley 1746-IV16\/C Digital Input Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eAllen-Bradley\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e1746-IV16\/C, also cataloged as the 1746-IV16\/C digital input module, operates as a dedicated hardware interface for 24 V DC discrete signal acquisition within SLC 500 backplane I\/O architectures. The module processes 16-point sinking input signals and transfers state data through the controller backplane bus for deterministic scan execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo formal suffix segmentation structure is defined for this model. The 1746-IV16\/C is treated as a single discrete catalog identifier within the SLC 500 I\/O module family.\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-IV16\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e152 mm x 89 mm x 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~120 mA at 5 V DC backplane; ~2 A total module consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Points\u003c\/td\u003e\n\u003ctd\u003e16 DC inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC nominal (10–30 V DC range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eSinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC (input to backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAllen-Bradley SLC 500 Backplane I\/O Architecture Characteristics\u003c\/h3\u003e\n\u003cp\u003eWithin SLC 500 systems, I\/O modules such as the 1746-IV16\/C interface directly with the chassis backplane, where cyclic data exchange is governed by backplane bus communication timing and scan sequencing. The module supports fixed-point digital mapping aligned with controller scan cycles, ensuring deterministic state transfer. Channel grouping is handled at the module level without per-channel parameterization, and firmware-level compatibility is tied to SLC 500 chassis and processor revision alignment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1746-IV16\/C be hot-swapped during system operation?\u003cbr\u003eA: No. The SLC 500 architecture does not support hot-swap insertion for discrete I\/O modules. Power must be removed from the chassis before module replacement.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane load contribution of this module?\u003cbr\u003eA: The module draws approximately 120 mA at 5 V DC from the backplane, which must be included in chassis power budget calculations.\u003c\/p\u003e\n\u003cp\u003eQ: Is this module compatible with CompactLogix or ControlLogix platforms?\u003cbr\u003eA: No direct compatibility exists. Integration requires migration or interface through supported Rockwell I\/O conversion strategies.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the module in an SLC 500-compatible chassis with verified backplane power capacity. Ensure 24 V DC field wiring is isolated from control wiring and routed with proper shielding for noise immunity. Maintain minimum conductor separation from high-voltage lines. Ground the chassis according to panel grounding standards using a single-point earth reference. Terminal blocks must be fully seated to ensure stable sinking input behavior. Avoid mechanical stress on backplane connectors during insertion or removal.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43505264590938,"sku":"1746-IV16\/C","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1746-IV16C2.jpg?v=1781602526","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1746-iv16-c-digital-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}