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

SKU: NO100958
Model: 1756-DHRIO
Product Condition: New - Open Box
$655.00

Allen-Bradley 1756-DHRIO ControlLogix DH+/Remote I/O communication module enables reliable DH+ and RIO messaging between ControlLogix, PLC, and SLC systems within a 1756 chassis.

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Estimated delivery: 3 days
One year warranty
Free return within 30 days of purchase.
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Allen Bradley Programmable Logic Controllers (PLCs) Automation
Product Description

Allen-Bradley 1756-DHRIO ControlLogix DH+/RIO Interface for Legacy Network Integration

The Allen-Bradley 1756-DHRIO is a ControlLogix communication interface module designed to connect DH+ and Remote I/O networks directly into a 1756 ControlLogix chassis. It enables structured data exchange between ControlLogix controllers and legacy PLC and SLC systems across multiple industrial networks.

Dual-Channel DH+ and Remote I/O Communication

  • Two independently configurable communication channels
  • Supports Data Highway Plus (DH+) and Remote I/O protocols
  • Selectable communication rates of 57.6, 115.2, or 230.4 Kbaud
  • Operates as scanner or adapter on Remote I/O networks

ControlLogix Chassis-Based Architecture

The 1756-DHRIO installs directly into a single ControlLogix chassis slot and communicates through the backplane. This architecture allows seamless integration with existing ControlLogix systems while maintaining deterministic communication with legacy networks.

Industrial Automation Applications

  • DH+ network integration for PLC-5 and SLC systems
  • Remote I/O scanning for distributed I/O architectures
  • Multi-network data exchange in ControlLogix platforms
Specifications
Specifications
MPN 1756-DHRIO
Product Condition New - Open Box
Shipping Length (in.) 8
Shipping Width (In.) 8
Shipping Height (In.) 8
Item Returns This item can be returned
Brand Allen-Bradley
Manufacturer Rockwell Automation
Catalog Number 1756-DHRIO
Product Line ControlLogix
Module Type Data Highway Plus / Remote I/O Communication Module
Installation Location 1756 ControlLogix Chassis
Number of Channels 2
Communication Protocols DH+, Remote I/O, CIP Messaging
Communication Speeds 57.6, 115.2, 230.4 Kbaud
Backplane Current (5 VDC) 1.7 mA
Backplane Current (24 VDC) 850 mA
Maximum Power Dissipation 4.5 W
Thermal Dissipation 15.4 BTU/hr
Operating Temperature 32 to 140 °F (0 to 60 °C)
Enclosure Type Open-style
Slot Width 1 slot
Weight 0.63 lbs
Recommended Cable Belden 89463 Twinaxial, 20 AWG
Spare Connector Kit Phoenix MVSTBR2.5/3-ST BK AU
What's in the box?
  • 1 x Allen-Bradley 1756-DHRIO ControlLogix DH+/RIO Communication Module
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