- Accepts eight current-sinking 24 V DC inputs from compatible sourcing field devices
- Provides selectable input filtering from 0.25 ms to 32 ms for inputs 0 through 7
- Mounts on a compatible 1794 terminal base with the mechanical keyswitch set to position 2
Allen-Bradley 1794-IB8 is a Series A FLEX I/O module that converts eight field-side DC input states into controller input data.
It is intended for sourcing field devices and provides local status indication, configurable filtering, and field-to-system electrical isolation.
For a replacement, confirm the exact catalog number, terminal base, keyswitch position, field-power polarity, filter configuration, enclosure, and approvals before returning the point group to service.
Availability, condition, price, and shipping time for Allen-Bradley 1794-IB8 are confirmed during quotation.
Allen-Bradley 1794-IB8 FLEX I/O Digital Input Module Manuals, Product Family, 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.
- Inputs 0 through 7 accept current from compatible two-wire or three-wire sourcing field devices
- The field-power positive and common connections must follow the selected 1794 terminal-base diagram
- The eight input channels share the field-side arrangement and do not provide channel-to-channel isolation
- The default input-filter time is 0.25 ms for inputs 0 through 7
- The configurable alternatives are 0.5, 1, 2, 4, 8, 16, and 32 ms
- Longer filter times reject more brief transients but increase the minimum pulse duration that can be detected
- Install the 1794 terminal base on a grounded DIN rail and set its keyswitch to position 2
- Use an open-style indoor enclosure suitable for Pollution Degree 2, Overvoltage Category II, and the installation environment
- Do not remove or replace the terminal base under power; apply the hazardous-location precautions in the official instructions
- Push-button contact inputs in FLEX I/O distributed control stations
- Limit-switch state inputs for machine-position and travel monitoring
- Relay-contact status inputs for discrete equipment and interlock feedback