Description

The Allen-Bradley 1785-ME32 is a non-volatile EEPROM Memory Module manufactured by Rockwell Automation for the PLC-5 programmable controller platform. This specialized expansion device acts as an independent program backup carrier, providing 32 Kilowords of dedicated memory capacity to safeguard operating logic, configuration parameters, and data table files against complete power loss or primary system failures. The module is engineered to fit into standard PLC-5 processors, enabling users to upload code images from processor RAM or restore functional application routines directly to active controller memory during diagnostic recovery procedures. Housed in a compact, slide-in form factor, the 1785-ME32 eliminates the risk of memory corruption due to dead internal chassis batteries, delivering an extra layer of structural stability for localized industrial automation environments.

Features

• Secure non-volatile program backup memory tailored for standard PLC-5 control systems.
• 32 Kilowords of high-density EEPROM storage capable of holding complete operational profiles and ladder execution code.
• Direct software-driven transmission path supporting fast image transfers between active processor memory and the storage card.
• Auxiliary retention strategy ensuring reliable system recovery independent of lithium battery conditions.

Applications

• Long-term non-volatile storage and backup for critical process control application code.
• Rapid recovery deployments inside automated manufacturing facilities experiencing sustained power outages or control faults.
• Standardized logic replication across multiple equivalent processing hardware nodes.

Technical Specifications

Installation Guidelines

• Processor Power Clearance: Prior to introducing or removing the memory card module, confirm all input electrical power feeding the local I/O chassis and processor assembly has been disconnected to isolate the internal electrical bus lines.
• Backplane Switch Configuration: Verify backplane hardware settings align with memory integration needs; if a processor expects a memory module but none is present, or if indicators are mismatched, the device logs fault code 82.
• Electrostatic Grounding Safety: Ground your workspace appropriately and wear a functional static dissipation wrist strap while picking up the unit to protect sensitive solid-state components from electrostatic damage.