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        1756-IB16

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        Allen-Bradley 1756-IB16 is a 16-point 12/24 V DC sinking input module arranged as two groups of eight for ControlLogix systems.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1756-IB16

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1756-IB16
        • Product Family:
          ControlLogix
        • Product Type:
          ControlLogix 16-Point DC Digital Input Module
        • Stock:
          1
        • Input points:
          16, two groups of eight
        • Voltage category:
          12/24 V DC sinking
        • Operating voltage:
          10...31.2 V DC
        • Input filters:
          User-selectable off-to-on and on-to-off
        • Change of state:
          Software configurable
        • Input timestamp:
          ±200 µs
        • Isolation:
          250 V inputs-to-backplane; 250 V group-to-group; none within a group
        • Backplane draw:
          100 mA at 5.1 V DC; 2 mA at 24 V DC
        • Removable terminal block:
          1756-TBNH or 1756-TBSH
        • Reverse polarity protection:
          Yes
        • Weight:
          0.2 kg
        • Estimated shipping dimensions:
          14.0x3.5x14.5cm
        • Tariff Code:
          Please confirm the destination before shipping
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Input Wiring Filter & Events Replacement Check Product Applications

        Features:

        • Sixteen sinking inputs: two groups of eight accept 10...31.2 V DC field states
        • Selectable response: input filtering and change-of-state operation are software configurable
        • Twenty-position wiring: 1756-TBNH or 1756-TBSH provides the documented field termination
        1756-IB16 fits discrete-input groups where two eight-point commons can be documented and tested independently.

        Its input timestamp and change-of-state functions are useful only when the controller project and selected filters preserve the intended event behavior.

        A recoverable installation links the full catalog and Series A label with the RTB type, point map, common wiring, filter settings, and accepted diagnostics.

        Availability of 1756-IB16 is subject to Apter Power inventory and sourcing confirmation.
        Allen-Bradley 1756-IB16 ControlLogix 16-Point DC Digital Input Module Manuals, Datasheets, Links
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Group commons: identify GND-0 and GND-1 before disconnecting the RTB.
        • Field source: confirm sourcing switches or sensors remain within 10...31.2 V DC.
        • Point map: correlate the twenty terminals with controller tags and cabinet wire numbers.
        • Isolation: do not treat individual points inside one group as electrically isolated.
        • Off-to-on filter: retain the project value selected from 0, 1, or 2 ms.
        • On-to-off filter: record the selected 0, 1, 2, 9, or 18 ms setting.
        • State reporting: compare input indication, module data, and controller logic during a known transition.
        • Timestamp use: verify that event ordering still meets the application requirement after service.
        • Identity: match the complete catalog and Series A marking.
        • RTB: inspect 1756-TBNH or 1756-TBSH contacts and mechanical keying.
        • Project: retain slot assignment, profile, electronic keying, and inhibit state.
        • Acceptance: exercise both groups and document every point before production release.
        • Machine status: acquire 12/24 V DC switches and discrete sensor states.
        • Interlock feedback: return grouped on/off conditions to a ControlLogix controller.
        • Panel input concentration: connect sixteen field points through one chassis slot.
        Description
        1756-IB16 acquires sixteen 12/24 V DC sinking inputs in two groups of eight. Its 10...31.2 V DC operating range supports standard discrete field signals in a ControlLogix chassis.

        The group arrangement of 1756-IB16 creates two documented electrical sections with group-to-group isolation but no separation between individual points inside one group. A 20-position 1756-TBNH or 1756-TBSH removable terminal block completes the field connection.

        Service work on 1756-IB16 should preserve the selected input filters, change-of-state behavior, project slot, electronic keying, terminal map, and normal status indication. These records distinguish a wiring or configuration fault from a module fault.
        Revisions

        Revision Part #

        Also known as

        1756-IB16 Series A
        1756-IB16/A, Series A
        Get Parts Quote
        Alternative Names
        Allen-Bradley 1756-IB16 input module Rockwell Automation 1756-IB16 AB 1756 IB16 1756IB16 DC input ControlLogix 16-point sinking input 1756-IB16 1756-IB16 Series A module
        Technical notes
        Treat the two eight-point groups as the engineering boundary: verify each DC common, point voltage, user-selected filter, terminal-block type, electronic keying, and controller tag map before exchanging 1756-IB16.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Why can one group on 1756-IB16 fail while the other group continues reporting inputs?
        The module uses two groups of eight with separate group commons. Measure the affected common and point voltages, inspect its RTB terminals, and compare the controller data before replacing hardware.
        How should the input filters of 1756-IB16 be recovered after a project change?
        Compare the approved project backup with the live module profile, restore each off-to-on and on-to-off value, then test known transitions against the expected process response.
        What does the isolation structure of 1756-IB16 allow a designer to assume?
        It provides documented input-to-backplane and group-to-group separation, but not point-to-point isolation inside a group, so field commons and potential differences still require review.
        Which terminal hardware must be matched when sourcing 1756-IB16?
        Confirm whether the installation uses the 20-position 1756-TBNH screw-clamp or 1756-TBSH spring-clamp RTB and preserve its mechanical keying and wire map.
        How can a technician test change-of-state behavior on 1756-IB16?
        Drive one known input under a safe procedure, compare the local indicator with module data and controller event handling, and record whether the configured filter alters the observed transition.
        What evidence should accompany an incoming 1756-IB16 inspection?
        Record the full catalog and Series A label, physical condition, connector pins, RTB match, traceability, and a controlled point test for both eight-input groups.

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