Allen-Bradley 1794-IB32 FLEX I/O Digital Input Module
High-density 24 V DC FLEX I/O module with 32 current-sinking inputs for distributed discrete-signal acquisition.
Description and purpose
The Allen-Bradley 1794-IB32 is a 32-point, current-sinking FLEX I/O digital input module for nominal 24 V DC signals. Rockwell Automation specifies a 19.2…31.2 V DC on-state range, selectable input filtering and 50 V continuous basic isolation between field and system. Correct adapter revision, terminal base, sensor polarity and filter setting should be reviewed before replacement.
Applications
Ordering information
T/T
Xiamen
3–5 days
In stock
Product image and buyer checklist
Buyer checklist for 1794-IB32
The 1794-IB32 is a 32-point sinking DC input module. Replacement checks should cover sensor polarity, input behavior and the FLEX I/O base already installed.
FAQ about Allen-Bradley 1794-IB32
Will 1794-IB32 work with every 24 V DC sensor?
Not automatically. The module uses current-sinking inputs, so confirm the sensor output type and wiring polarity. Also verify that the signal reaches the specified 19.2…31.2 V DC on-state range.
Why might a fast sensor pulse be missed by 1794-IB32?
The configured input filter can be set from 0.25 to 32 ms. A long filter suppresses noise but can also reject short pulses. Compare the sensor pulse width with the filter setting in the adapter or controller configuration.
Can I replace 1794-IB32 without checking the FLEX I/O adapter revision?
No. Rockwell lists minimum compatible revisions for Remote I/O, ControlNet, DeviceNet, EtherNet/IP and PROFIBUS adapters. Identify the installed adapter and firmware before planning the exchange.
Is each 1794-IB32 input isolated from the others?
No. Rockwell specifies basic isolation between the field side and system, but no isolation between individual channels. Review commons, grounding and field-supply grouping when troubleshooting noise or potential differences.
Which terminal base should I verify for 1794-IB32?
The installation instructions use 1794-TB32 or 1794-TB32S for this 32-point wiring layout. Confirm the installed base and terminal assignments before moving conductors.
What should I send for a 1794-IB32 quotation?
Provide the complete model and series, quantity, adapter type and revision, terminal-base part number, sensor output type, label photos and destination. Include any compatibility problem you are trying to solve.
PLCEXPORT support for FLEX I/O projects
PLCEXPORT helps maintenance and project teams compare nameplate details, review configuration requirements and coordinate international supply for 1794-IB32.
Our team, workplace and order preparation
Need help confirming 1794-IB32 compatibility?
Send Sales Manager Myrtle the complete catalog number, series or revision, quantity, installed-system details and destination. We will review the request before quotation and identify any wiring, firmware or accessory details that still need confirmation.
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