Allen-Bradley 1791-24A8 Remote I/O Block Module

FAQ

Q1. What is the main function of the 1791-24A8?
It is a Remote I/O block module used to collect 24 AC inputs and control 8 AC outputs in distributed PLC systems.

Q2. What type of systems does it work with?
It is used with Allen-Bradley PLC systems supporting Remote I/O architecture, such as PLC-2, PLC-3, PLC-5, and SLC systems.

Q3. What voltage levels does it handle?
It operates with 120 VAC field signals for both inputs and outputs.

Q4. How is it connected to a PLC?
It communicates via Allen-Bradley Remote I/O (RIO) using a scanner module in the PLC.

Q5. How many total I/O points does it have?
It provides 32 total points: 24 inputs and 8 outputs.

Q6. What kind of applications is it used for?
It is commonly used in industrial automation systems such as legacy machinery, factory control panels, and distributed I/O systems.

Q7. What is its power requirement?
It requires an external 85–132 VAC power supply.

Q8. What are its size and weight?
It measures approximately 17.65 × 11.05 × 9.80 cm and weighs around 0.85–1.0 kg.