Product Overview:
The Allen Bradley 1775-ME4 is a robust and essential 4K word (4096 words) core memory module designed specifically for the legacy Allen-Bradley PLC-2 family of programmable logic controllers. This critical component provides non-volatile memory storage for PLC-2 processor programs, data tables, and configuration parameters, ensuring reliable operation of industrial automation systems without the need for battery backup. As a core memory module, the 1775-ME4 utilizes magnetic core technology, renowned for its exceptional durability and data retention capabilities even in the event of power loss, making it ideal for demanding industrial environments where system uptime and data integrity are paramount. It serves as a vital replacement or expansion module for maintaining and extending the life of existing PLC-2 installations, supporting continuous operation in various manufacturing, process control, and utility applications. Its plug-and-play design ensures seamless integration into compatible PLC-2 chassis, facilitating straightforward system upgrades or repairs.

 
Technical Specifications:

 Part Number: 1775-ME4
 Alternate Part Number: 1775ME4
 Memory Type: Core Memory (Magnetic Core)
 Memory Capacity: 4K Words (4096 16-bit words)
 Compatibility: Allen-Bradley PLC-2 Family Processors (e.g., 1772-LP, 1772-LX, 1772-LXP, 1772-LSP, 1772-LSX)
 Module Type: Memory Expansion Module
 Data Retention: Non-volatile (retains data without power)
 Operating Temperature: 0°C to 60°C (32°F to 140°F)
 Storage Temperature: -40°C to 85°C (-40°F to 185°F)
 Relative Humidity: 5% to 95% non-condensing
 Mounting: Chassis Slot Mount (PLC-2 Chassis)
 Weight: Approximately 0.5 kg (1.1 lbs)