Allen Bradley 1791ES-IB8XOBV4 EtherNet/IP Safety CompactBlock Input Module

Product Introduction

The Allen-Bradley 1791ES-IB8XOBV4 EtherNet/IP Safety CompactBlock I/O Module is a compact, safety-rated distributed I/O solution designed for modern industrial automation systems that require both safety input monitoring and safe output control. As part of the CompactBlock Guard I/O family, this module integrates input and output functionality into a single device, reducing system complexity and improving installation efficiency.

It provides 8 isolated safety inputs and 4 dual-channel solid-state outputs, designed to meet the requirements of functional safety applications. The dual-channel output structure enhances reliability by supporting redundancy and monitoring, which is essential in safety-critical control systems. With a rated output current of 250 mA per channel and 24 VDC operation, it is suitable for driving safety relays and interfacing with control elements.

Featuring built-in EtherNet/IP Safety communication, the module enables high-speed, secure data exchange with safety controllers, making it ideal for distributed safety architectures where performance, diagnostics, and flexibility are critical.

Product Specifications

Applications

• Machine safety systems – Used for emergency stop circuits, safety interlocks, and protective guarding systems

• Automated production lines – Enables distributed safety monitoring and control across multiple stations

• Robotic cells – Supports safe control of actuators and monitoring of safety devices in robotic applications

• Packaging and material handling – Ensures safe operation in systems with human-machine interaction

• Process control environments – Provides reliable safety signal handling in industrial processes

Advantages

• Integrated safety I/O design – Combines isolated inputs and dual-channel outputs in one compact module

• Dual-channel output structure – Provides enhanced safety redundancy and fault detection capability

• EtherNet/IP Safety communication – Enables fast, secure, and reliable safety data transmission

• Compact and space-saving design – Ideal for installations where panel space is limited

• Improved system diagnostics – Supports monitoring and fault detection through network communication

• Reduced wiring and installation effort – Distributed I/O architecture simplifies system layout

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