Allen-Bradley 1791DS-IB8XOB8 Used Working CompactBlock Guard I/O Safety I/O

Product Overview

The Allen-Bradley 1791DS-IB8XOB8 is a high-security CompactBlock Guard I/O Module, designed specifically for distributed safety control on DeviceNet networks. This module provides a combination of safety inputs and safety outputs, allowing for localized safety logic execution and high-speed communication with a GuardLogix or SmartGuard controller. As a Used Working unit, it is a critical component for maintaining or expanding functional safety systems (up to SIL 3 / PL e) in manufacturing environments where space-saving, decentralized safety I/O is required.

Key Features

• Combined Safety I/O: Features 8 Safety Inputs and 8 Safety Outputs (solid-state), providing a versatile interface for emergency stops, light curtains, and safety actuators.
• DeviceNet Connectivity: Integrated DeviceNet port allows for seamless communication within a standard Rockwell Automation network architecture.
• High Safety Integrity: Certified for use in safety applications up to SIL 3 (IEC 61508) and Performance Level e (ISO 13849-1) when properly configured.
• Smart Guarding: Supports advanced safety functions including pulse testing on inputs to detect short circuits and cross-circuit faults.
• Compact Footprint: The "CompactBlock" design minimizes enclosure space while providing robust, industrially hardened I/O points.
• Status Diagnostics: Equipped with comprehensive LED indicators for Module Status, Network Status, and individual I/O point diagnostics.

Item Condition (Used Working)

• Functional Status: Used Working. This module has been professionally removed from a decommissioned safety system. It has been powered up, and the DeviceNet node communication has been verified.
• Physical State: Clean industrial condition. The terminal connectors are intact, and the rotary address switches for node setting are fully functional and click firmly into place.
• Technical Integrity: The safety configuration has been cleared. The unit is ready to be commissioned and "locked" within your RSNetWorx for DeviceNet or Studio 5000 environment.
• Note: Safety modules require specific "Safety Network Number" (SNN) resetting during commissioning. Please ensure your system integrator is familiar with Guard I/O reset procedures.

Package Includes

1. 1 x Allen-Bradley 1791DS-IB8XOB8 CompactBlock Guard I/O Module
2. Removable terminal blocks (attached)