Rated 4.5 with 22 reviews


Revisions: Ser A

Description:   The Allen-Bradley 1794-IB8 Flex I/O Digital Input Modules has 8 Current Sinking Inputs, a 10V DC On-state Voltage min., and a 31.2V DC On-state Voltage max.. It also operates with a 12.0mA On-state Current max. and a 5V DC Off-state Voltage max..

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About 1794-IB8

The Allen-Bradley 1794-IB8 is a Flex 1794 Digital DC Input module. It is fitted inside the terminal bus making a connection with the field devices and the I/O bus. Modules can be inserted or removed under power since the I/O module does not have any direct wiring. It in turn saves time and removes system restarting inefficiency. It is very popular because of its reliability, flexibility, cost-effectiveness, and modularity.
The 1794-IB8 module has 8 current sinking inputs with 24V DC nominal On-State voltage, 10 – 31.2V DC On-State voltage range, and 1.5mA minimum Off-State current. It has a maximum power dissipation of 3.5W at 31.2V DC. Terminal base units compatible with it are the 1794-TB3 and the 1794-TB3S. It is installed using a DIN rail. It has various communication options such as ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
The 1794-IB8 module has 16 yellow LEDs as status indicators for each channel. LEDs indicate corresponding input devices and output signals. It also has D and XT versions of standard modules for diagnostics and extreme environments, reducing panel and maintenance costs. It has a 0 - 55 °C (32 - 131 °F) operating temperature and a 5 - 95% noncondensing relative humidity.

Technical specifications:

Manufacturer:Rockwell Automation
Part Number/Catalog No.:1794-IB8
Product Type:Flex I/O Digital Input Modules
Inputs:8 Current Sinking
On-state Voltage min.:10V DC
On-state Voltage max.:31.2V DC
On-state Current min.:2.0mA min.
On-state Current max.:12.0mA
Off-state Voltage max.:5V DC
Off-state Current max.:1.5mA
Nominal Input Impedance:4.6 k?
Flexbus Current:20mA @ 5V DC
Power Dissipation:3.5W @ 31.2V DC max.
Type Lead Time Price Action
Repair Service 2-4 weeks AskGet Quote

Our highly skilled technicians can repair your 1794-IB8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Please refer to the manual for more information about the 1794-IB8 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-IB8 Ser A
1794-IB8/A, Series A, Rev A Request Quote

Common misspellings: 1794IB8