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Allen-Bradley DH+ / RIO Communication Interface Module 1756-DHRIO 24 VDC

$349.00 USD

Sale Sold out

ConditionSurplus - Untested MPN1756-DHRIO Stock #0526-02215

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 5.0 lbs

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The Allen-Bradley 1756-DHRIO is a ControlLogix platform DH+ and Remote I/O communication interface module designed to bridge Data Highway Plus and Remote I/O networks within a ControlLogix chassis. The unit visible in photos is Series D, Catalog Revision A01, Firmware Revision 6.1, manufactured in the USA. Part number 96484871 is confirmed on the module nameplate; the outer carton additionally lists part number 96484881 (A01 revision). Current draw is rated at 850 mA at 5 VDC and 1.7 mA at 24 VDC per the nameplate. The module provides two independent communication channels, designated CH A and CH B, with an OK status indicator visible on the front face. It is compatible with ControlLogix 1756 series backplane systems and supports DH+ baud rates up to 230.4 kbps as well as Remote I/O scanning functions. The 1756-DHRIO is used in applications requiring legacy DH+ or RIO network integration alongside modern ControlLogix processors, commonly found in automotive, material handling, and general manufacturing automation environments. The unit is presented in its original Allen-Bradley packaging with included accessories. Serial number 00267748 is confirmed on the module label. This product has been discontinued by Rockwell Automation with an end-of-life date of 12/31/2024, making surplus examples the primary channel for replacement or spares procurement.

Stock # 0526-02215

Please Note: This unit is surplus inventory, sold as-is from MRO Exchange surplus stock. Allen-Bradley is a trademark of Rockwell Automation, Inc. MRO Exchange is an independent reseller and is not an authorized distributor of Rockwell Automation. Product may differ from units available through authorized distributors in date code, country of origin, packaging, accessories, or firmware revision. The warranty from the manufacturer does not apply.

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.