Allen-Bradley 1791-IOVW Block I/O Module

The 1791-IOVW is a discontinued high-density Block I/O module manufactured by Allen-Bradley for discrete industrial automation applications. Operating on a 24 VDC external power supply, this self-contained 64-point I/O block integrates 32 sourcing 24 VDC input channels and 32 sinking 24 VDC output channels within a single rugged enclosure.

Channel Capacity and Current Limits

The module provides 32 DC inputs configured for 24 VDC sourcing field signals and 32 DC outputs designed for 24 VDC sinking loads. The output circuitry supports up to 2.4 A total load current per output group, enabling direct control of industrial solenoids, indicators, relays, and low-power actuator devices.

Modular Block Architecture

As part of the 1791 Block I/O family, the unit combines power distribution, signal terminal points, and network connectivity into a single compact housing. This standalone design eliminates the need for separate backplanes or terminal bases, reducing control panel footprint and streamlining field wiring for remote I/O nodes.

Frequently Asked Questions

Q: What are the input and output channel configurations for the 1791-IOVW? A: The 1791-IOVW contains 64 total I/O channels, split evenly into 32 sourcing 24 VDC inputs and 32 sinking 24 VDC outputs.

Q: What is the maximum load current rating for the outputs on this module? A: The module supports a maximum switching current of 2.4 A per output group.