Allen-Bradley 1756-DHRIO/E DH+/RIO Communication Interface Module – ControlLogix

Technical Dossier

Product Details And Specifications

Allen-Bradley 1756-DHRIO/E: Securing Legacy ControlLogix Communication in a Constrained Global Supply Chain

The Allen-Bradley 1756-DHRIO/E is a ControlLogix-platform DH+ and Remote I/O (RIO) communication interface module manufactured by Rockwell Automation. As a bridge between modern ControlLogix controllers and legacy DH+ or RIO networks, this module is a critical dependency in thousands of installed automation systems across Oil & Gas, Automotive Assembly, Pulp & Paper, and Heavy Manufacturing.

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

DriveKNMS maintains a verified global sourcing network specifically for discontinued Rockwell Automation hardware. Every unit offered is subject to functional verification and documentation review before dispatch review.

Procurement Specifications

Migration vs. Maintenance: Full migration from DH+/RIO to EtherNet/IP requires significant engineering investment — typically USD $50,000–$500,000 per line including hardware, programming, and validation. For facilities not yet budgeted for migration, maintaining the existing 1756-DHRIO/E infrastructure with verified spares is the rational, cost-controlled decision.

Q: Can you support multi-unit or repeat RFQ requests?
A: Yes. Send the model list, target quantity and destination so DRIVEKNMS can review sourcing options and quote the requirement as a project RFQ.

Export Documentation: DriveKNMS provides full commercial invoice, packing list, and certificate of origin compliant with international trade regulations. Export classification and customs documentation are handled in-house to avoid clearance delays.

Payment Flexibility: We support T/T (wire transfer), L/C, PayPal, and Western Union. Multi-currency invoicing available in USD, EUR, CNY, and HKD.

Global Logistics: Standard shipment via DHL Express or FedEx International Priority. Typical transit time: 3–7 business days to North America and Europe; 2–5 business days within Asia. Air freight and sea freight options available for bulk orders. Real-time tracking provided on all shipments.

Part Number Verification: The 1756-DHRIO series has multiple firmware revisions (/A through /E). Our technical team verifies the exact revision requested and flags compatibility considerations before dispatch review — preventing costly mis-shipments that are common with less rigorous suppliers.

Q: Can you source specific firmware revisions (e.g., /E only)?
A: Yes. We source to the exact revision specified. If only a different revision is available, we will disclose this and provide compatibility guidance before proceeding.