Allen Bradley 1791-8BC Block I/O Module

Product Introduction

The Allen-Bradley 1791-8BC Block I/O Module is a compact mixed digital input/output module designed for industrial automation applications requiring both monitoring and control in a single unit. Manufactured by Rockwell Automation and part of the Allen-Bradley Block I/O series, this module is widely used in machine-level control and distributed automation systems.

It provides 8 digital inputs and 8 digital outputs, operating within a 10–30 VDC voltage range, with stable operation supported by an external 19.2–30 VDC power supply. The 1791-8BC is designed to simplify installation while delivering reliable performance in demanding industrial environments, making it ideal for compact panels and systems requiring combined I/O functionality.

Product Specifications

Applications

• Machine-Level Automation
Collects sensor input signals and controls actuators such as relays and solenoids in compact machinery.

• Production and Assembly Lines
Monitors equipment status while controlling output devices across multiple stations.

• Material Handling Systems
Manages inputs from sensors and drives outputs for conveyors and signaling devices.

• Process Automation Applications
Provides reliable control and monitoring for small to medium industrial processes.

• OEM Equipment Integration
Ideal for compact machines needing combined input/output capability.

• Factory Automation Systems
Supports centralized and reliable I/O management in automated production environments.

Advantages

• Integrated Input/Output
Combines 8 inputs and 8 outputs into a single module, minimizing additional hardware requirements.

• Wide DC Voltage Compatibility
Supports 10–30 VDC operation for both inputs and outputs, ensuring compatibility with most industrial devices.

• Simplified Wiring and Installation
Block I/O design reduces complexity and installation time.

• External Power Support
Ensures stable operation and reliable performance for connected field devices.

• Compact Module Design
Optimizes panel space while providing full I/O functionality.

• Industrial-Grade Reliability
Engineered for continuous operation in demanding environments.

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