Overview
Manuals
Principle
Revisions
Features:
- Discrete I/O block from Allen-Bradley
- It has a nominal input current of requirement of 11.0 mA
- This module features Thirty-Two (32) 120VAC input channels in Four (4) groups of Eight (8) channels each
The 1791-32A0 is a compact industrial digital input/output module commonly used in distributed control and field I/O systems. Its primary function is to manage the discrete signal acquisition and output control between field devices (such as sensors, buttons, relays, and actuators) and the host controller or networked automation system. It provides a structured interface for real-time acquisition of status information and issuance of control commands.
In practical applications, the 1791-32A0 enhances system flexibility by supporting multiple digital channels within a compact enclosure, thereby reducing wiring complexity and cabinet space requirements. It is typically deployed in machine automation, material handling, and process control environments where reliable digital signal management is critical. The module supports robust electrical isolation and diagnostic capabilities, improving system reliability and simplifying troubleshooting during maintenance.
The 1791-32A0 Allen Bradley Discrete I/O block may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen Bradley 1791-32A0 Discrete I/O block Manuals(Datasheets), Link
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.
The 1791-32A0 operates based on digital signal detection and controlled switching via internal electronic circuitry. Input channels detect external voltage or contact states and convert them into logic signals readable by the controller. Output channels receive control commands from the system and activate internal switching elements to drive connected field loads. Through bidirectional signal processing and a protected electrical interface, this module ensures the accuracy and stability of communication between the control system and field devices.
Revision Part #
Also known as
1791-32A0/A
1791-32A0 Ser A, Series A, Rev A
1791-32A0/B
1791-32A0 Ser B, Series B, Rev B
