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Allen Bradley

Allen Bradley 1771-IB Digital DC Input Module

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ManufacturerAllen Bradley

Part number1771-IB

Module Type Digital DC Input

Number of Points 16

Input Voltage 120VAC

Isolation 500V AC Field to Logic

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CAGE: 9NK75

16 digital inputs 120VAC nominal voltage High voltage isolation Designed for PLC-5 systems Diagnostic LEDs Field wiring terminals

Product description

The Allen Bradley 1771-IB is a digital DC input module designed for the PLC-5 family of programmable logic controllers. It features 16 input points and operates with a 120VAC input voltage. This module allows for the connection of field devices such as switches, pushbuttons, and sensors to the PLC for discrete control applications.

This input module is commonly used in various industrial automation applications, including manufacturing, material handling, and process control. Its robust design ensures reliable operation in harsh environments, making it suitable for industries like food and beverage, automotive, and water/wastewater treatment.

Stanlo Automation, a veteran-owned business, offers a wide selection of surplus industrial automation parts, including the Allen Bradley 1771-IB. We provide reliable components at competitive prices, ensuring your operations run smoothly with quality, readily available parts.

Technical specifications

Module Type	Digital DC Input
Number of Points	16
Input Voltage	120VAC
Isolation	500V AC Field to Logic
Backplane Current	300 mA @ 5V DC
PLC Series	PLC-5

Common applications

Manufacturing Automation

Material Handling

Process Control

Packaging Machinery

Automotive Assembly

Food & Beverage Processing

Compatible systems

PLC-5/10 PLC-5/15 PLC-5/25 PLC-5/40 PLC-5/60

Also known as

Allen Bradley 1771IB, 1771 IB Input Module, PLC-5 Input Card

Replaces / compatible with

This module is a direct replacement for other 16-point, 120VAC input modules within the Allen Bradley PLC-5 family.

Technical note

Expert tip

Ensure proper wiring to the 1771-IB module, observing correct polarity and voltage for reliable 120VAC input signal acquisition.

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Frequently asked questions

What is the input voltage for the Allen Bradley 1771-IB module?

The Allen Bradley 1771-IB module is designed for a nominal input voltage of 120VAC. This allows it to interface with common industrial field devices operating at this voltage level.