| Brand | Allen-Bradley |
| Series | PLC-5 |
| Status | Discontinued by Manufacturer |
| Module Size | 1 Slot |
| Module Type | Control Coprocessor Main Module |
| Part Number | 1771-DMC |
| Manufacturer | Rockwell Automation |
| Memory Capacity | 256 KB |
| Communication Ports | 1x 9-Pin RS-232C, 1x 25-Pin RS-232C, RS-423, RS-485 |
Does the Allen-Bradley 1771-DMC come with a warranty?
Yes. The 1771-DMC 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-DMC a genuine Allen-Bradley part?
The 1771-DMC 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-DMC new or used?
We offer the 1771-DMC 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-DMC?
The 1771-DMC is an Allen-Bradley PLC-5 Control Coprocessor Main Module.
How fast does the 1771-DMC ship?
In-stock orders for the 1771-DMC 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-DMC
The Allen-Bradley 1771-DMC control coprocessor module is the main processing unit in the PLC-5 series, designed to execute complex control programs with a memory capacity of 256 KB. This versatile module features multiple serial communication ports, including a 9-pin and a 25-pin EIA RS-232C port, an RS-423 port, and an RS-485 port, enabling flexible connectivity with various industrial devices and networks. The 1771-DMC supports reliable data exchange and efficient control system operation within a single rack slot, making it a key component in PLC-5 automation applications.
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.
