Allen Bradley 1791ES-IB16 EtherNet/IP Safety CompactBlock Input Module

Product Introduction

The Allen-Bradley 1791ES-IB16 EtherNet/IP Safety CompactBlock Input Module is a high-performance safety I/O device designed for modern distributed safety architectures. As part of the CompactBlock Guard I/O family, this module provides a reliable interface for connecting multiple safety input devices directly to an EtherNet/IP network, eliminating the need for centralized wiring and improving system flexibility.

It is equipped with 16 safety inputs and 16 test outputs, all operating at 24 V DC, allowing it to efficiently monitor a wide range of safety devices such as emergency stop buttons, safety interlocks, and light curtains. The integrated test outputs enhance diagnostic capability by enabling detection of wiring faults and ensuring signal integrity.

With native EtherNet/IP Safety communication, the module supports high-speed, secure data exchange with safety controllers, making it suitable for complex automation systems that require both performance and compliance with functional safety standards.

Product Specifications

Applications

• Machine safety systems – Designed for monitoring emergency stops, safety gates, and interlock switches in automated machinery

• High-speed production lines – Suitable for applications requiring fast and reliable safety signal processing over EtherNet/IP

• Robotics and automation cells – Enables distributed safety input collection in complex robotic systems

• Packaging and material handling – Provides safe operation in systems with frequent human interaction

• Process industries – Supports safety monitoring in distributed control environments with network-based architecture

Advantages

• High-density input design – Provides 16 safety inputs in a single module, improving system efficiency

• EtherNet/IP Safety integration – Enables high-speed and secure communication, reducing latency compared to traditional networks

• Enhanced diagnostics – 16 test outputs improve fault detection and wiring verification

• Reduced wiring complexity – Distributed architecture minimizes long cable runs and simplifies installation

• Reliable industrial performance – Designed for stable operation in demanding industrial environments

• Scalable system integration – Easily expands within EtherNet/IP networks for large automation systems

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