1771-DRS4 | Allen-Bradley Control Coprocessor
Allen-Bradley · PLCs & Industrial Controllers
Description The Allen-Bradley 1771-DRS4 is a control coprocessor module featuring a 4 MB static RAM memory expansion, designed to enhance the processing capabilities of legacy automation systems. This module was engineered for high-performance control tasks requiring dedicated memory and auxiliary computation power. Technical Specifications Condition New/Never Used Surplus Brand Allen-Bradley Category PLCs/Machine Control Part Number 1771-DRS4 Subcatecory PC Board PLC/Add-On Board Product Type Control Coprocessor Module Memory 4 MB Static RAM System Compatibility Allen-Bradley 1771 I/O Chassis Module Function Coprocessor with memory expansion Form Factor Rack-mounted PLC module Weight 0.01 lbs Information About 1771-DRS4 The 1771-DRS4 is a discontinued control coprocessor module from Allen-Bradley, developed for use with programmable controller systems that demand extended memory for local logic execution or data processing. It comes equipped with 4 MB of static RAM, enabling high-speed memory access and reduced response times in time-sensitive industrial control applications. Key Features: Type: Control coprocessor with onboard static RAM Memory Capacity: 4 MB of static RAM for expanded local data processing Application: Used to offload control and computation tasks from the primary PLC processor System Compatibility: Designed for 1771 series I/O chassis and legacy Allen-Bradley controllers Form Factor: Slot-based module for rack-mounted PLC systems Status: Discontinued by manufacturer, but still used in legacy systems for extended functionality Industrial Use: Suitable for memory-intensive control applications requiring dedicated processing resources The 1771-DRS4 adds memory and computational support to legacy control systems, ensuring enhanced logic execution and real-time performance in demanding automation environments.
Brand: Allen-Bradley · Category: PLCs & Industrial Controllers
Key features
- Type: Control coprocessor with onboard static RAM
- Memory Capacity: 4 MB of static RAM for expanded local data processing
- Application: Used to offload control and computation tasks from the primary PLC processor
- System Compatibility: Designed for 1771 series I/O chassis and legacy Allen-Bradley controllers
- Form Factor: Slot-based module for rack-mounted PLC systems
- Status: Discontinued by manufacturer, but still used in legacy systems for extended functionality
- Industrial Use: Suitable for memory-intensive control applications requiring dedicated processing resources
Specifications
| Manufacturer part number | 1771-DRS4 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | PLCs/Machine Control |
| Part Number | 1771-DRS4 |
| Subcatecory | PC Board PLC/Add-On Board |
| Product Type | Control Coprocessor Module |
| Memory | 4 MB Static RAM |
| System Compatibility | Allen-Bradley 1771 I/O Chassis |
| Module Function | Coprocessor with memory expansion |
| Form Factor | Rack-mounted PLC module |
| Weight | 0.01 lbs |
| Product type | PC Board PLC/Add-On Board |
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