Contact us to request a specific version.
1756-DHRIO Allen-Bradley
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1756-DHRIO is an Allen-Bradley ControlLogix Data Highway Plus / Remote I/O communications interface module. It provides two selectable channels (DH+ or Remote I/O) and enables a ControlLogix chassis to function as a Remote I/O scanner. Commonly used to bridge ControlLogix controllers with Data Highway Plus networks or with distributed I/O racks, the 1756-DHRIO is suitable for applications requiring communication with legacy PLC-5 or SLC controllers or Remote I/O systems. The part number 1756-DHRIO denotes the standard version (Series E) of this module.
Best Suited For
- Bridging ControlLogix chassis to DH+ or Remote I/O networks
- Connecting to legacy PLC-5 or SLC controllers via DH+
- Scalable Remote I/O scanner functionality with distributed racks
- Replacement in existing DH+ / Remote I/O systems (Series E compatible)
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
Certified as of April 9, 2026, for Semiconductor Industries Immunity, China CCC, ATEX, Safety, American Bureau of Shipping, Australian RCM, and IECEx Scheme.