| Brand | Allen-Bradley |
| Series | PLC‑5 / 1771 |
| Status | Discontinued by Manufacturer |
| Mounting | 1771 I/O Chassis |
| Part Number | 1771-ACNR |
| Manufacturer | Rockwell Automation |
| Product Type | ControlNet Communication Interface Module |
| Redundant Media | Yes (Dual BNC Ports) |
| ControlNet Version | 1.0 and 1.25 |
| Compatible Backup System | Not compatible with 1785-CHBM |
Does the Allen-Bradley 1771-ACNR come with a warranty?
Yes. The 1771-ACNR is backed by our 24-Month Replace Industrial Warranty, with no rush fees or hidden warranty charges. If a unit fails under normal use within the warranty period, we repair or replace it.
Is this 1771-ACNR a genuine Allen-Bradley part?
The 1771-ACNR is sourced and verified independently. Replace Industrial, LLC is not a Rockwell Automation Authorized Distributor, and all warranties are provided directly by Replace Industrial.
Is the Allen-Bradley 1771-ACNR new or used?
We offer the 1771-ACNR in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.
What is the Allen-Bradley 1771-ACNR?
The 1771-ACNR is an Allen-Bradley PLC-5 ControlNet Communication Interface Module.
How fast does the 1771-ACNR ship?
In-stock orders for the 1771-ACNR ship the same day when placed before our daily cutoff. Expedited and same-day air options are available if you are facing downtime, with no rush fees. Our team is based in Raleigh, North Carolina.
1771-ACNR
The Allen-Bradley 1771-ACNR is a two-port ControlNet communication interface module designed for use with the PLC-5 series and 1771 I/O systems. Supporting ControlNet versions 1.0 and 1.25, the 1771-ACNR provides redundant media support, allowing for increased network reliability in critical control applications. It enables deterministic, high-speed communication between PLC processors and remote I/O modules over ControlNet. Unlike the 1771-ACNR15, this module is not compatible with the ControlNet PLC-5 backup system (1785-CHBM). The 1771-ACNR installs in a standard 1771 I/O chassis and features dual BNC connectors for redundant media configuration.
All products are covered by our 2-Year (24-Month) Replace Industrial Warranty. If a unit is found defective under normal use within the warranty period, we repair or replace it at no additional cost, and a unit may be returned for a full refund within 30 days if returned in the same condition it was sent.
Replace Industrial is an independent distributor and does not convey the manufacturer's warranty; all warranties are provided by Replace Industrial alone. Read the full warranty policy
We repair a wide range of industrial automation equipment, including PLCs, HMIs, drives, servo motors, switches, and circuit breakers, with rush service for critical downtime. Request a quote, ship your unit, and we diagnose, repair, and return it. Request a repair quote
Our standard shipping method is UPS Ground. We can also ship on your FEDEX or DHL account.
We can ship many items our the same day via Overnight or 2 Day Shipping.
We currently only collect tax from customers in the state of North Carolina. If you are exempt on your purchase, please email your Sales Tax & Use Exemption Form to sales@replacenc.com.
If you are checking out via a quote we send you, there is an option to upload your form at the time of purchase.
If you have already placed an order, please send us your form and we can refund the charged taxes.
