Block I/O module, 24V DC, 32 sourcing inputs, 32 sinking outputs

Product Description

This discrete Block I/O module interfaces 24V DC field signals to a controller and consolidates high point counts in a compact assembly. It provides 32 sourcing inputs for detecting DC sensor states and 32 sinking transistor outputs rated for resistive loads, enabling dense distributed I/O in machine and process applications. Input thresholds are designed for reliable operation with an on-state range of 12 to 26.4V DC and minimum on-state current of 1.56 mA, with off-state limits of 7V DC and 1 mA max to minimize false transitions. Outputs operate from 18 to 26.4V DC with up to 300 mA per point resistive, suitable for driving indicators and interposing relays. The module supports an external 18 to 26.4V DC supply and integrates a controller interface for quick commissioning. Typical installation is horizontal with adequate spacing for thermal management. This unit is intended for technicians deploying distributed I/O in PLC-based systems who require clear electrical limits and robust DC signal handling.

Key Features

• •24V DC operation for industrial controls
• •32 sourcing inputs for discrete sensing
• •32 sinking outputs up to 300 mA resistive
• •Wide input on-state range 12–26.4V DC
• •Tight off-state limits to reduce false inputs
• •External 18–26.4V DC power supported
• •High-density 64-point distributed I O

Buy Options

Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.

Specifications

Manufacturer

ALLEN BRADLEY

Manufacturer Part Number

1791-IOVW

Product Line

1791 Block I/O

I/O Points

32 inputs (sourcing), 32 outputs (sinking)

Nominal Voltage

24V DC

Input On-State Voltage Range

12–26.4V DC

Input On-State Current

1.56 mA min

Input Off-State Voltage

7V DC max

Input Off-State Current

1 mA DC max

Output Voltage Range

18–26.4V DC

Output Current

300 mA max per point, resistive

External Power

18–26.4V DC

Weight

2.19 lb (0.99 kg)

UPC

10612598121110

Lifecycle Status

Discontinued/Obsolete

Part #

1791-IOVW

Category

PLCs/Machine Control

Category

PLC Module/Rack

Weight

3.15 lbs

FAQ