Allen-Bradley 1791-IOBB CompactBlock I/O Module

Product Overview

The Allen-Bradley 1791-IOBB is a compact Block I/O module engineered for versatile industrial automation applications. It operates at a nominal 24V DC and integrates seamlessly with Allen-Bradley PLC-2, PLC-3, PLC-5, and SLC 500 programmable controllers.

Featuring 10 sinking inputs and 6 sourcing outputs, the 1791-IOBB supports efficient signal handling and precise control. Its small footprint allows for installation in tight spaces, while the removable I/O and remote connectors simplify wiring and maintenance tasks.

The module includes built-in DIP switches to configure I/O rack numbers, starting I/O group, unit transmission rate, last state, and DH-485 termination. This ensures flexible system integration and reliable operation in diverse industrial environments.

Key Technical Specifications

Advantages

• Compact design with removable connectors simplifies wiring and installation.

• DIP switches allow flexible configuration of rack number, I/O group, and transmission rate.

• Fully compatible with multiple Allen-Bradley PLC families for scalable automation.

• Efficient power usage with low thermal dissipation ensures reliable long-term operation.

Applications

• Integration with PLC-2, PLC-3, PLC-5, and SLC 500 controllers

• Remote I/O expansion in industrial control panels

• Signal conditioning and processing for factory automation systems

• General-purpose industrial input/output control

FAQ

Q1: Is the Allen-Bradley 1791-IOBB brand new?
A1: Yes, the 1791-IOBB is 100% original and factory-sealed.

Q2: What voltage does this module require?
A2: The 1791-IOBB operates at 20.5–27.6V DC, with nominal 24V DC.

Q3: How many inputs and outputs does it provide?
A3: It provides 10 sinking inputs and 6 sourcing outputs.

Q4: Can it work with SLC 500 systems?
A4: Yes, it is fully compatible with SLC 500, PLC-2, PLC-3, and PLC-5 controllers.

Q5: What is the typical power dissipation?
A5: The module typically dissipates 8.73 Watts, with a maximum of 12.39 Watts.

Q6: How soon will the module ship?
A6: Orders ship within 3–14 days depending on quantity and logistics.

Q7: Is there a return policy for defects?
A7: We support returns within 30 days if any quality issues occur.

The Allen-Bradley 1791-IOBB offers reliable, compact, and configurable I/O expansion for industrial automation systems.