Allen-Bradley 1756-DHRIO DH+/RIO Bridge/Scanner Module – ControlLogix Series

Technical Dossier

Product Details And Specifications

Allen-Bradley 1756-DHRIO: Securing Supply for a Discontinued ControlLogix Communication Module

The Allen-Bradley 1756-DHRIO is a ControlLogix-platform DH+/RIO Bridge and Scanner Module that enables legacy Data Highway Plus (DH+) and Remote I/O (RIO) networks to communicate with modern ControlLogix controllers. Rockwell Automation has placed this module on its discontinued/mature product list, which means open-market sourcing is now the primary procurement channel for maintenance, expansion, and emergency replacement scenarios.

Procurement Specifications

Every 1756-DHRIO unit shipped by DriveKNMS is subject to the following quality and compliance standards:

• RFQ terms review: Commercial terms are confirmed during RFQ review based on model, condition, documentation, quantity and destination.
• Export Documentation: Full commercial invoice, packing list, and certificate of origin provided for all international shipments. Compliant with CN customs export regulations and destination country import requirements.
• Multi-Currency Payment: USD, EUR, CNY, HKD accepted. T/T (wire transfer), PayPal, and trade finance terms available for qualified buyers.
• Logistics Partners: DHL Express, FedEx International Priority, and UPS Worldwide. Typical transit time: 3–5 business days to North America and Europe; 5–10 days to Middle East, Southeast Asia, and South America.
• Packaging: Anti-static ESD packaging with foam cushioning. Original OEM packaging preserved where available.

DriveKNMS is a China-based industrial automation parts distributor with a global sourcing network covering North America, Europe, and Asia-Pacific. We specialize in hard-to-find, discontinued, and long-lead-time automation components for MRO and capital project procurement.

• Sourcing Network: Access to 200+ verified surplus dealers and OEM channel partners globally. If a unit exists in the secondary market, we can locate it.
• Part Number Verification: Our technical team cross-references firmware revision, catalog suffix, and hardware revision to ensure the unit you receive is compatible with your specific ControlLogix chassis and software version.
• Financial Compliance: We issue VAT-compliant invoices and can support bonded warehouse arrangements for large-volume buyers. All transactions are documented for audit trail purposes.
• No Substitution Without Approval: We will never ship an alternative part number without explicit written approval from the buyer. Your PO is fulfilled exactly as specified or we notify you first.

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

Q: How do I confirm this part is compatible with my ControlLogix system?
A: Provide your chassis catalog number, RSLogix 5000 / Studio 5000 version, and existing DH+ node configuration. Our technical team will confirm compatibility before dispatch review.