1769-IG16 Allen-Bradley 16-Pt TTL Input Module

Product Overview

The ALLEN-BRADLEY 1769-IG16 is a compact 16-channel digital input module that bridges 5V TTL logic devices with CompactLogix controllers. It enables direct interfacing for robotic controllers and high-speed sensors without extra converters. The module features 75V DC optical isolation and configurable filtering to ensure precise data acquisition and robust backplane protection.

Technical Configuration

High-Speed TTL Interface

Engineered for 5V DC logic (4.4V to 5.5V DC), the hardware maintains a strict 50mV ripple tolerance to eliminate false triggering in sensitive electronic circuits.

Configurable Filtering

Software-adjustable filter times (0ms to 8ms) suppress signal bounce, while native Studio 5000 integration provides real-time diagnostics and easy setup.

Technical Specifications

Installation Guide

Mount the module on a standard DIN rail with 25mm clearance for ventilation. Connect field wiring via the 1769-RTBN18 terminal block using 22-14 AWG copper wire. To maintain signal integrity, ensure all terminal screws are torqued to 6 in-lb and route low-voltage TTL lines away from high-power AC cables.

Engineering Advantages

• Studio 5000 Ready: Seamless integration for rapid logic development and troubleshooting.
• Space Efficiency: High-density 16-point layout in a single-slot width.
• Industrial Grade: IP20 rated with 30G shock resistance for reliable machine-side mounting.

Technical FAQs

Q1: Does it support 24V DC inputs?
A1: No. This module is strictly for 5V TTL levels. 24V signals will damage the unit.

Q2: Is the terminal block included?
A2: No. The 1769-RTBN18 removable terminal block must be ordered separately.

Q3: Can it be used for high-speed pulse detection?
A3: Yes. With a typical hardware delay of 0.1ms, it is ideal for high-speed logic counting.