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Description

The Allen-Bradley 1791-16BC is a block I/O module designed for industrial automation applications. This unit provides 16 inputs and 16 outputs, operating within a 10-30 VDC voltage range. As a compact block I/O solution, it is engineered to interface field devices directly with the control system, facilitating efficient signal processing in distributed I/O architectures.

Features

• 16 inputs organized into 2 groups of 8.
• 16 discrete outputs for versatile control.
• Compatible with 24V DC control systems.
• Robust block-style housing for industrial environments.
• Wide operating voltage range of 10-30V DC.

Technical Specifications

Product Model	1791-16BC
Inputs	16 (2 groups of 8)
On-state Voltage Range	10-30V DC
Off-state Current (Max)	11.0mA @ 30V
Off-state Current (Min)	2.5mA @ 10V
Off-state Voltage (Max)	5V DC
Input Impedance (Max)	3.4K ohms
Min On-state Current (Output)	1mA per output
Max On-state Voltage Drop	1.0V @ rated current
Off-state Leakage Current (Max)	0.5mA
Output Signal Delay	0.5ms on / 1.0ms off

Installation Guidelines

• Ensure the power supply is disconnected before installing or removing the module to prevent electrical damage.
• Mount the module in a location that allows for adequate ventilation and cooling to maintain optimal operating temperatures.
• Use shielded cables for I/O connections to minimize electromagnetic interference (EMI) in high-noise industrial environments.
• Verify that all wiring connections are secure and properly terminated according to the module's terminal layout.
• Handle the module with care, adhering to standard ESD (Electrostatic Discharge) protection practices during installation.

FAQ

Is the 1791-16BC still in production?

No, the Allen-Bradley 1791-16BC was officially discontinued by the manufacturer on June 30, 2015. We provide high-quality surplus or refurbished units to support legacy systems.

What are the compatible spare models for this unit?

The 1791-16BC is often interchangeable with revisions 1791-16BC/B and 1791-16BC/C, depending on your specific system requirements.

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