Allen Bradley 1756-DHRIO ControlLogix Remote I/O Communication Interface Module

Overview

The Allen Bradley 1756-DHRIO is a ControlLogix Remote I/O communication interface module that provides high-speed connectivity between a ControlLogix controller and distributed I/O devices. It enables seamless data exchange for distributed control systems, supporting efficient network management and real-time diagnostics.

General Information

Part Number: 1756-DHRIO

Manufacturer: Allen Bradley

Brand / Country of Origin: Allen Bradley / United States

Series: ControlLogix

Type: Remote I/O Communication Module

Mounting: Chassis-mounted within ControlLogix system

Technology: High-speed I/O communication, diagnostic monitoring, network interface

Power Specifications

Supply Voltage: 5.1 V DC (backplane)

Current Consumption: 1.0 A @ 5.1 V DC

Power Consumption: Approximately 5.1 W

Power Source: ControlLogix backplane

Protection Features: Overcurrent and short-circuit protection

Status Indicators: LEDs for module status, communication activity, and faults

Communication & Interface

Communication Protocol: Remote I/O interface for ControlLogix

Network Ports: Proprietary interface connectors for distributed I/O devices

Data Transfer: Supports high-speed cyclic and acyclic messaging

Network Functions: Controller-to-I/O data exchange, diagnostics, and network supervision

Diagnostics: Built-in link supervision, error detection, and status reporting

Configuration: Configurable through ControlLogix programming software

Environmental

Operating Temperature: 0 to +60 °C

Storage Temperature: -40 to +85 °C

Relative Humidity: 5% to 95%, non-condensing

Protection Rating: Suitable for installation inside industrial control cabinets

Vibration Resistance: Complies with industrial automation standards

Dimensions & Weight

Dimensions (L × W × H): 144.5 × 34.6 × 130.18 mm

Weight: 0.28 kg

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