Description

The Allen-Bradley 1791-16B0 is a compact Block I/O module designed for industrial automation applications. This 16-point input module operates on a 24V DC power supply, providing reliable signal acquisition for distributed I/O systems. As a member of the 1791 Block I/O series, it offers a space-efficient solution for interfacing field devices with a controller, facilitating streamlined wiring and reduced installation footprints in control cabinets.

Features

• 16-point digital input configuration for high-density signal monitoring.
• Standard 24V DC operating voltage compatible with common industrial sensors and switches.
• Robust block-style design for simplified mounting and integration.
• Designed for distributed I/O architectures to minimize long-run field cabling.

Technical Specifications

Installation Guidelines

• Ensure power is disconnected from the I/O system before installing or removing the module to prevent electrical damage.
• Mount the module in a clean, dry environment with adequate ventilation to maintain operating temperature limits.
• Use appropriate shielded cabling for input signals to minimize electromagnetic interference (EMI) and noise pickup.
• Verify that all terminal connections are secure and that the 24V DC power supply is correctly polarized before energizing the system.
• Follow standard ESD (Electrostatic Discharge) precautions when handling the module to protect internal circuitry.

FAQ

Is the 1791-16B0 still in production?

No, this module was discontinued by the manufacturer on June 30, 2015. It is typically available through surplus or secondary market channels for maintenance of legacy systems.

What is the primary function of this module?

The 1791-16B0 is a digital input module used to collect 24V DC signals from field devices and transmit that status to a PLC or controller via the I/O network.