Allen-Bradley 1756-DHRIO ControlLogix DH Plus/RIO Comms Module

Name: Allen-Bradley 1756-DHRIO ControlLogix DH Plus/RIO Comms Module
Brand: Allen-Bradley
SKU: 1756-DHRIO
Price: 334 USD
Availability: InStock

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Description

The Allen-Bradley 1756-DHRIO is a ControlLogix communication module designed for Data Highway Plus (DH+) and Remote I/O (RIO) networks. It provides two communication channels for connecting ControlLogix systems with legacy Allen-Bradley PLCs and devices.

Technical Specifications

Condition	New / Never Used Surplus
Brand	Allen-Bradley
Series	ControlLogix
Part Number	1756-DHRIO
Manufacturer	Rockwell Automation
Module Type	Data Highway/Remote I-O Communication Module
Location	1756 ControlLogix Chassis
Communication Speed	57.6 Kbaud, 115.2 Kbaud, 230.4 Kbaud
Cable Length	3048 m (10000 ft), , 1524 m (5000 ft),762 m (2500 ft)
Recommended Cable	Belden 89463 twinaxial, 0.52 mm² (20 AWG)rated at 200 °C (392 °F)
Backplane Current (5Volts)	1.7 milliamps
Backplane Current (24 Volts)	850 milliamps
Power Dissipation (Max)	4.5 Watts
Thermal Dissipation (Max)	15.4 BTU per hour
Enclosure	Open
Operating Temperature	0-60 Celsius, 32-140 Fahrenheit
Slot width	1

Information About 1756-DHRIO

The 1756-DHRIO is part of the Allen-Bradley ControlLogix 1756 communication module family, developed to bridge modern Logix platforms with older Allen-Bradley network infrastructures. This module supports two independent communication channels, each configurable for DH+ or RIO operation. In DH+ mode, it enables peer-to-peer communication between PLC-5, SLC 500, and ControlLogix controllers. In RIO mode, it allows the ControlLogix controller to act as a scanner or adapter for legacy remote I/O devices. It features high-speed data transfer, network diagnostics, and LED status indicators for simplified monitoring. Rack-mounted in a ControlLogix chassis, the 1756-DHRIO provides seamless integration of legacy systems into modern control architectures.

Key Features:

Design: Dual-channel communication module for ControlLogix systems.
Networks Supported: Data Highway Plus (DH+) and Remote I/O (RIO).
Channels: Two independent ports configurable for DH+ or RIO.
Compatibility: Interfaces ControlLogix controllers with PLC-5, SLC 500, and legacy I/O.
Functionality: Supports peer-to-peer communication and RIO scanner/adapter roles.
Diagnostics: LED indicators for channel status and network activity.
Installation: Rack-mounted in 1756 ControlLogix chassis.
Application Range: Suitable for system integration, legacy migration, and hybrid automation.

The 1756-DHRIO delivers the connectivity and flexibility required for integrating legacy networks with modern ControlLogix systems.

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Allen-Bradley 1756-DHRIO ControlLogix DH Plus/RIO Comms Module

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