The Allen-Bradley 1756-IG16 is a high-performance digital DC input module designed for the ControlLogix platform. This module provides 16 input points, organized into groups of 9 per common, specifically engineered to interface with 5V DC TTL-level signals. It is widely utilized in industrial automation environments requiring precise, low-voltage signal monitoring and integration with TTL-compatible devices.

Features

• 16-point digital input density for space-efficient I/O configuration.
• Designed for 5V DC TTL source input applications.
• Operating voltage range of 4.5 to 5.5V DC.
• Configurable input filter times to manage signal noise and debounce.
• Low power dissipation of 1.4 Watts at 60 degC.
• Compatible with standard ControlLogix chassis backplane power.

Technical Specifications

Installation Guidelines

• Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical arcing or damage to the backplane.
• Verify that the module is fully seated in the chassis slot and that the locking tab is engaged.
• Use appropriate shielded cabling for input signals to minimize electromagnetic interference (EMI) in high-noise industrial environments.
• Maintain proper ventilation within the cabinet to ensure the module operates within its specified temperature range.
• Follow standard ESD (Electrostatic Discharge) handling procedures when touching the module circuitry.

FAQ

What is the primary application for the 1756-IG16?
This module is designed for applications requiring the monitoring of 5V DC TTL signals, commonly found in specialized sensors, TTL-level logic circuits, and specific instrumentation interfaces.

How many points are supported per common?
The 1756-IG16 features 16 input points with 9 points per common.