{"product_id":"1756-ic16-allen-bradley-controllogix-16-point-dc-input-module","title":"1756-IC16 Allen-Bradley ControlLogix 16 Point DC Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-IC16\/A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-IC16\u003c\/strong\u003e DC Input Module, accepts 48 VDC sinking input signals through 16 channels and transfers their status to the ControlLogix backplane. Rockwell Automation specifies a 30-60 VDC input module with 8 points per group.\u003c\/p\u003e\n\u003ch3\u003eModel Reference\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IC16 is a ControlLogix digital input module rated for 48 VDC nominal operation. Its 16 inputs are arranged as two groups of 8 points. The module provides status indication through front-panel LEDs and uses a 20-pin removable terminal block interface.\u003c\/p\u003e\n\u003cp\u003eThe supplied spare references are 1756IC16 and 1756-IC16\/A. The current Rockwell Automation product page identifies the catalog number 1756-IC16 and lists it as an active ControlLogix product.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\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-IC16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Model\u003c\/td\u003e\n\u003ctd\u003e1756IC16, 1756-IC16\/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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16, 8 points per group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e48 VDC sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e48 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e30-55 VDC at 60 deg C; 30-60 VDC at 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Voltage\u003c\/td\u003e\n\u003ctd\u003e10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Current\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum On-State Current\u003c\/td\u003e\n\u003ctd\u003e2 mA at 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum On-State Current\u003c\/td\u003e\n\u003ctd\u003e7 mA at 60 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Inrush Current\u003c\/td\u003e\n\u003ctd\u003e250 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Impedance\u003c\/td\u003e\n\u003ctd\u003e8.57 k ohm at 60 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay, Off to On\u003c\/td\u003e\n\u003ctd\u003e1 ms maximum hardware delay plus selected filter time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay, On to Off\u003c\/td\u003e\n\u003ctd\u003e4 ms maximum hardware delay plus selected filter time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable Filter Times\u003c\/td\u003e\n\u003ctd\u003e0 ms, 1 ms, 2 ms; additional off-to-on filter settings include 9 ms and 18 ms for the applicable transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e100 mA at 5.1 VDC; 3 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Backplane Power\u003c\/td\u003e\n\u003ctd\u003e0.58 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.2 W at 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e17.73 BTU\/hr\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\u003eChange of State\u003c\/td\u003e\n\u003ctd\u003eSoftware configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Timestamp\u003c\/td\u003e\n\u003ctd\u003e+\/-200 us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage, Inputs to Backplane\u003c\/td\u003e\n\u003ctd\u003e250 V continuous, basic insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage, Group to Group\u003c\/td\u003e\n\u003ctd\u003e125 V continuous, basic insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndividual Input Isolation\u003c\/td\u003e\n\u003ctd\u003eNo isolation between inputs within the same group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse Polarity Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block Options\u003c\/td\u003e\n\u003ctd\u003e1756-TBNH, 1756-TBSH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Category\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Code\u003c\/td\u003e\n\u003ctd\u003eT4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA, supplied reference; current Rockwell page lists Malaysia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.18 kg, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 14 x 14.5 cm, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eThe operating-voltage limits, input-current thresholds, backplane current, power dissipation, filtering, update time, and isolation values above are taken from Rockwell Automation technical data.\u003c\/p\u003e\n\u003ch3\u003eBackplane Communication and I\/O Behavior\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IC16 converts the electrical state of each 48 VDC input into status data transferred through the ControlLogix backplane. The module provides 16 discrete input points divided into two groups of eight.\u003c\/p\u003e\n\u003cp\u003eInput transition timing is selectable through software filtering. The specified hardware delay is up to 1 ms for off-to-on transitions and up to 4 ms for on-to-off transitions, before the selected filter interval is added.\u003c\/p\u003e\n\u003cp\u003eThe module supports software-configurable change-of-state operation and input timestamps with a specified accuracy of +\/-200 us. These functions allow controller logic to process input transitions without relying only on periodic state polling.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Control Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1756-IC16 uses a sinking 48 VDC input architecture. The minimum specified on-state current is 2 mA at 30 VDC, while the maximum specified operating current is 7 mA at 60 VDC. The specified maximum off-state current is 1.5 mA.\u003c\/p\u003e\n\u003cp\u003eIsolation is provided between the input system and the backplane at 250 V continuous, with 125 V continuous isolation between the two input groups. Individual inputs within the same group are not isolated from each other.\u003c\/p\u003e\n\u003cp\u003eThe module draws 100 mA from the 5.1 VDC backplane supply and 3 mA from the 24 VDC backplane supply. Total backplane power is 0.58 W, while maximum module power dissipation is 5.2 W at 60 deg C.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-IC16 ControlLogix 16 Point 48 VDC Digital Input Module\u003c\/li\u003e\n\u003cli\u003e1 x 1756-IC16 module assembly\u003c\/li\u003e\n\u003cli\u003e1 x Compatible removable terminal block selected separately as required, such as 1756-TBNH or 1756-TBSH\u003c\/li\u003e\n\u003cli\u003e1 x Suitable ControlLogix chassis position is required for installation\u003c\/li\u003e\n\u003cli\u003eField wiring, prewired cables, and interface modules are separate components unless specifically included in the configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Wiring Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eInput wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the field source is compatible with the 48 VDC sinking input architecture.\u003c\/li\u003e\n\u003cli\u003eKeep the applied input voltage within the published operating range.\u003c\/li\u003e\n\u003cli\u003eConfirm polarity before energizing field circuits.\u003c\/li\u003e\n\u003cli\u003eSeparate DC control wiring from high-current switching conductors where practical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse the specified removable terminal block type for the installation.\u003c\/li\u003e\n\u003cli\u003eFollow the ControlLogix wiring documentation for terminal assignment and conductor preparation.\u003c\/li\u003e\n\u003cli\u003eEnsure each conductor is mechanically secured before applying field voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGrouping and isolation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTreat the two eight-point input groups according to the specified group isolation arrangement.\u003c\/li\u003e\n\u003cli\u003eDo not assume that individual inputs within one group are galvanically isolated.\u003c\/li\u003e\n\u003cli\u003eUse an appropriately isolated interface when independent channel isolation is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFiltering and signal integrity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelect the input filter interval according to the required transition response.\u003c\/li\u003e\n\u003cli\u003eAvoid excessive filtering for signals where short pulses must be detected.\u003c\/li\u003e\n\u003cli\u003eAvoid routing input conductors adjacent to high-energy switching cables where electrical interference is possible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow many inputs are provided by the 1756-IC16?\u003c\/strong\u003e\u003cbr\u003eThe module has 16 DC inputs arranged as two groups of 8 points. The input voltage category is 48 VDC sink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat voltage does the 1756-IC16 require?\u003c\/strong\u003e\u003cbr\u003eIts nominal input voltage is 48 VDC. The specified operating range is 30-60 VDC, with a reduced upper limit at elevated temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the maximum off-state current?\u003c\/strong\u003e\u003cbr\u003eThe specified maximum off-state input current is 1.5 mA. The maximum off-state voltage is 10 VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat current is required to turn an input on?\u003c\/strong\u003e\u003cbr\u003eThe minimum specified on-state current is 2 mA at 30 VDC, while the maximum operating current is 7 mA at 60 VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAre all 16 inputs individually isolated?\u003c\/strong\u003e\u003cbr\u003eNo. Inputs are grouped in two sets of eight. Group-to-group isolation is specified at 125 V continuous, but inputs within a group are not individually isolated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the ControlLogix backplane current draw?\u003c\/strong\u003e\u003cbr\u003eThe module draws 100 mA at 5.1 VDC and 3 mA at 24 VDC. Total backplane power is specified as 0.58 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan the input filter time be configured?\u003c\/strong\u003e\u003cbr\u003eYes. Software-selectable filtering is provided. The documented filter selections include 0 ms, 1 ms, 2 ms, 9 ms, and 18 ms as applicable to input transition timing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich terminal blocks are compatible?\u003c\/strong\u003e\u003cbr\u003eRockwell Automation lists 1756-TBNH and 1756-TBSH removable terminal blocks for the 1756-IC16. The module occupies one ControlLogix chassis slot.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066414190765,"sku":"1756-IC16","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1756-ic16_1.jpg?v=1786978320","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1756-ic16-allen-bradley-controllogix-16-point-dc-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}