AB 1794-IB16
AB 1794-IB16
AB 1794-IB16
AB 1794-IB16
AB 1794-IB16
AB 1794-IB16
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  • Lifecycle status

    Active Mature

    Rockwell Automation lists Allen-Bradley 1794-IB16 in the Active Mature lifecycle category.

1794-IB16

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Allen-Bradley 1794-IB16 is a 16-point FLEX I/O 24 V DC sinking input module with configurable filtering and an input-15 counter.
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Technical specifications for 1794-IB16

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1794-IB16
  • Product Family:
    Flex I/O
  • Product Type:
    FLEX I/O 16-Point Digital Input Module
  • Stock:
    1
  • Input points:
    16
  • Input type:
    24 V DC sinking
  • Input voltage range:
    10...31.2 V DC
  • On-state current:
    2 mA minimum; 8 mA nominal at 24 V DC; 12 mA maximum
  • Off-state voltage:
    5 V DC maximum
  • Off-state current:
    1.5 mA maximum
  • Input impedance:
    4.6 kΩ maximum
  • Counter-capable input:
    Input 15
  • FLEXBus current:
    30 mA at 5 V DC
  • Power dissipation:
    6.1 W maximum
  • Thermal dissipation:
    20.8 BTU/hr maximum
  • Operating temperature:
    0...55 °C
  • Compatible terminal bases:
    1794-TB3 / TB3S / TB3K / TB3SK / TBKD / TB37DS
  • Weight:
    0.074 kg
  • Tariff Code:
    8473309000
  • 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 Diagnostics Filtering Integration Application

Features:

  • Sixteen sinking input points support distributed 24 V DC field-signal collection
  • Configurable input filtering adapts the module response to the installed signal behavior
  • Input 15 provides the documented counter function when the selected adapter supports it
1794-IB16 provides a compact FLEX I/O interface for grouping discrete machine states at a distributed station.

Its channel filtering and input-15 counter capability make the saved project configuration an important part of replacement planning.

Verify the adapter, terminal base, point mapping, input commons, field wiring, and Series A identification before commissioning.

Availability, condition, price, and shipping time for 1794-IB16 are confirmed during quotation.

Allen-Bradley 1794-IB16 FLEX I/O 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.

  • Individual yellow indicators report the on-state of the sixteen input points
  • Field voltage, terminal-base commons, and module data should be compared during troubleshooting
  • Adapter status and controller slot mapping must be checked when indicators and project data disagree
  • Inputs 0...11 and inputs 12...15 use separate filter-setting bit groups.
  • Selectable input-filter times are 0.25 ms (default), 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, and 32 ms.
  • Write the selected filter value to the module output image table during system startup.
  • Set the terminal-base keyswitch to position 2 before installing the module.
  • Wire size and terminal screw torque are determined by the selected terminal base.
  • The open-style module is grounded through the DIN rail and must be installed in a suitable enclosure.
  • Monitor 24 V DC discrete sensors and machine-status contacts
  • Collect sixteen field-input states in distributed FLEX I/O installations
  • Use input 15 for the documented counter function with a compatible adapter
Description
Allen-Bradley 1794-IB16 is a FLEX I/O digital input module that provides sixteen sinking input points for 24 V DC field devices.

The module accepts 10...31.2 V DC input signals and has a nominal on-state current of 8 mA at 24 V DC. Its configurable input filtering supports different signal-response requirements, while input 15 provides the documented counter function when used with a compatible adapter.

Before installation or replacement, verify the Series A identification, a compatible 1794 terminal base, input commons, sensor wiring, filter configuration, adapter compatibility, slot assignment, and controller project mapping.
Revisions

Revision Part #

Also known as

1794-IB16 Series A
1794-IB16/A, Series A
Alternative Names
1794-IB16 1794IB16 1794 IB16 Allen-Bradley 1794-IB16 Allen Bradley 1794-IB16 Rockwell Automation 1794-IB16 FLEX I/O 1794-IB16 1794-IB16 Series A
Technical notes
Input 15 has a documented counter function with adapter restrictions. Preserve the Series A profile, terminal-base wiring, filter settings, and controller mapping before service.
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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.
Why can an input LED turn on while a controller does not receive data from Allen-Bradley 1794-IB16?
Verify the adapter connection, physical slot, module profile, controller ownership, terminal-base seating, and project mapping after confirming the field signal.
What installation environment is required for Allen-Bradley 1794-IB16?
The module is open-style equipment intended for a Pollution Degree 2 industrial environment and Overvoltage Category II applications at altitudes up to 2000 m without derating. Install it in a suitably designed enclosure.
Are the individual input channels of Allen-Bradley 1794-IB16 isolated from each other?
No. Rockwell Automation specifies field-side-to-system isolation for the module but no isolation between individual input channels.
Which terminal bases are documented for Allen-Bradley 1794-IB16?
Rockwell Automation recommends 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBKD, and 1794-TB37DS. Confirm the installed base, keyswitch position, conductor arrangement, and field wiring before ordering.
Can Allen-Bradley 1794-IB16 be replaced without changing the controller project?
Not automatically. Match the catalog number, Series A hardware, adapter, slot profile, filtering, counter use, and controller configuration before reuse.
What should be checked if several Allen-Bradley 1794-IB16 inputs fail together?
Inspect the shared field supply, terminal-base commons, group wiring, module seating, and adapter status before treating multiple sensors as failed.
What information should accompany a quote request for Allen-Bradley 1794-IB16?
Provide the complete catalog number, Series A marking, terminal-base model, adapter catalog number, quantity, condition requirement, and clear label photos.

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