{"product_id":"allen-bradley-1756-ib16i-k-digital-dc-input-module","title":"Allen-Bradley 1756-IB16I\/K Digital DC Input Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-IB16I\/K Digital DC 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-IB16I\/K\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-IB16I\/K\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDigital DC Input Module, serves as the primary 1756-IB16I\/K DigitalDC Input module utilized to execute 16-channel discrete signal acquisition across ControlLogix platform architectures. The module converts 10–30 VDC field input states into backplane-serialized digital data words for controller scan processing.\u003c\/p\u003e\n\u003cp\u003eChannel-level electrical separation is implemented across sixteen individually isolated inputs, allowing independent state evaluation prior to ControlLogix backplane aggregation.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IB16I\/K is a single catalog-defined hardware configuration. No additional order code segmentation or functional suffix matrix is defined in the provided dataset. No structural decomposition is applied.\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-IB16I\/K\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\u003e0.44 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.58 W total backplane power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigitalDC Input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 individually isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (nominal 24VD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10–30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-state Current (min)\u003c\/td\u003e\n\u003ctd\u003e2 mA @ 10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-state Current (max)\u003c\/td\u003e\n\u003ctd\u003e10 mA @ 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1 VDC)\u003c\/td\u003e\n\u003ctd\u003e100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 VDC)\u003c\/td\u003e\n\u003ctd\u003e3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCyclic Update Time\u003c\/td\u003e\n\u003ctd\u003e200 us to 750 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON Delay\u003c\/td\u003e\n\u003ctd\u003e1 ms max + selectable filter (0 ms, 1 ms, 2 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF Delay\u003c\/td\u003e\n\u003ctd\u003e4 ms max + selectable filter (0 ms, 1 ms, 2 ms, 9 ms, 18 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Options\u003c\/td\u003e\n\u003ctd\u003e36-pin RTB or 1492 IFM interface module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix Backplane Communication and I\/O Execution Behavior\u003c\/h3\u003e\n\u003cp\u003eThe module communicates through ControlLogix backplane cyclic scheduling, where I\/O data is transferred via deterministic slot-based arbitration. Input state updates are synchronized with controller task execution cycles through internal backplane bus timing rather than external field protocol processing.\u003c\/p\u003e\n\u003cp\u003eProfinet \/ EtherNet\/IP connectivity is implemented at controller network level, while the module itself operates as a backplane-resident discrete acquisition node. I\/O density scaling is fixed per chassis slot, with module mapping defined during system initialization.\u003c\/p\u003e\n\u003cp\u003eFirmware compatibility is enforced through ControlLogix chassis revision matching, where module recognition is dependent on backplane enumeration during power-up sequence. Backplane communication velocity and scan alignment govern update consistency across cyclic execution windows.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1756-IB16I\/K support mixed ON\/OFF delay filtering per channel?\u003cbr\u003eA: Yes. Each channel supports configurable filter timing options, with ON delay up to 2 ms and OFF delay selectable up to 18 ms, applied at hardware input processing stage before backplane transmission.\u003c\/p\u003e\n\u003cp\u003eQ: What is the impact of cyclic update time on input sampling?\u003cbr\u003eA: Cyclic update time ranges from 200 us to 750 ms depending on controller scan configuration, defining the refresh interval of input state data transferred into ControlLogix memory.\u003c\/p\u003e\n\u003cp\u003eQ: Can backplane power variation affect module operation?\u003cbr\u003eA: The module operates with 100 mA at 5.1 VDC backplane current and 3 mA at 24 VDC auxiliary consumption. Voltage instability outside chassis specification may cause input state invalidation during scan cycles.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the module in a compatible ControlLogix chassis with stable backplane power distribution. Ensure full engagement of RTB or IFM connectors to maintain all 16 isolated input channels.\u003c\/p\u003e\n\u003cp\u003eMaintain separation between DC input wiring and high-frequency switching conductors to reduce induced coupling across isolated signal paths. Shield termination should be implemented at a single-point grounding structure within the control cabinet.\u003c\/p\u003e\n\u003cp\u003eVerify channel configuration mapping in ControlLogix programming environment prior to energizing field inputs. Avoid mixing unrelated voltage reference groups across adjacent terminals to preserve channel isolation integrity.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43601141923930,"sku":"1756-IB16I\/K","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-IB16I1.jpg?v=1778048738","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-ib16i-k-digital-dc-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}