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Rockwell ControlLogix · Interface Modules

Rockwell 1756-DHRIO

Normal sale of the 1756-DHRIO has ended. Spares may still be available, but the clock is running.

  1. Active RolloutSold and supported normally
  2. Phase OutRetirement announced, still orderable
  3. CancellationNormal sale ended, spares may remain
  4. Total DiscontinuationNo manufacturer supply or repair

ECS stage: Cancellation.

Is the Rockwell 1756-DHRIO discontinued?

On ECS's lifecycle assessment, the 1756-DHRIO has been cancelled (since December 2024): no longer sold as a current product, though spares may remain available for a period.

Source: ECS lifecycle assessment, based on ECS's internal lifecycle data in Command Centre. Last checked . Always confirm a specific part's status with the manufacturer before buying or planning a migration.

What Cancellation means for you

You can no longer order it as a normal product, and nothing new should be designed around it. If machines depend on it, you want spare stock you can rely on and a migration plan. Both start with knowing how many you run.

How ECS defines Cancellation · all four lifecycle stages

Before replacing a communications module

A communications module can stop a much larger part of the machine than its size suggests. We would document the protocol, node or IP addressing, rack configuration, connected devices and every PLC, HMI or SCADA dependency that references it.

If the migration changes network technology, the scope has to include the equipment at the other end of that link as well as the module itself. Capturing the topology now turns a future fault into a controlled network change rather than a discovery exercise.

ECS engineering guidance

1756-DHRIO part details

Manufacturer
Rockwell Automation
Range
ControlLogix
Name
ControlLogix DH+/ RIO Comms Module
Summary
ControlLogix DH Plus/RIO Comms Module Discontinued Date: December 31, 2024

Common questions about the 1756-DHRIO

Is the Rockwell 1756-DHRIO discontinued?

On ECS's lifecycle assessment, the 1756-DHRIO has been cancelled (since December 2024): no longer sold as a current product, though spares may remain available for a period.

Can I still buy a 1756-DHRIO?

Not as a normal new product. Remaining distributor stock or designated spares may still be available. Buy any you need now.

An ECS engineer capturing a control panel on a tablet: PLC, drive and power supply identified and synced to Command Centre

Know where every unit is before one fails.

A Capture audit finds every 1756-DHRIO on your site, photographs it where it sits and checks it against manufacturer lifecycle status, so you know your exposure and where your spares are before a failure stops a line.

  • Every device located, photographed and lifecycle-checked
  • Findings report, plus a populated Command Centre
  • No production downtime
See how Capture works

Other ControlLogix parts

All Rockwell parts · All manufacturers