The Allen-Bradley 1785-ME64, also cataloged as the 1785ME64 EEPROM Memory Cartridge, operates as a dedicated hardware component for non-volatile program storage and memory transfer functions within PLC-5 controller platforms.

Model Identification & Configuration

The 1785-ME64 is an EEPROM memory cartridge designed for Allen-Bradley PLC-5/40 and PLC-5/60 processors. The cartridge provides 64K words of non-volatile memory storage for controller program backup, transfer, and restoration operations.

Hardware Specifications

PLC-5 Memory Architecture

The 1785-ME64 provides non-volatile EEPROM storage for PLC-5 processor systems. Unlike volatile RAM memory, EEPROM technology retains stored program information without continuous power supply.

The cartridge interfaces with compatible PLC-5 processors to support application program backup, restoration, and controller maintenance operations. Memory cartridge installation requires processor compatibility verification and correct handling of the cartridge connector interface.

Firmware and Program Storage Compatibility

The Allen-Bradley PLC-5 platform uses dedicated memory cartridge interfaces for program retention and system maintenance. The 1785-ME64 is designed specifically for PLC-5/40 and PLC-5/60 processors and does not support newer ControlLogix or CompactLogix memory architectures.

Firmware compatibility, processor revision level, and application program structure should be checked before transferring stored data between PLC-5 processor units.

Ordering Information

• 1 x Allen-Bradley 1785-ME64 EEPROM Memory Cartridge
• 1 x 64K Word EEPROM memory device
• 1 x Protective cartridge housing
• 1 x Product identification label
• 1 x Technical inspection record

Field Installation Guidelines

Cartridge Installation

• Verify the PLC-5 processor model before installing the memory cartridge.
• Insert the cartridge according to the processor memory slot orientation.
• Avoid touching exposed connector contacts during installation.

Program Handling

• Confirm the existing PLC program backup status before memory transfer operations.
• Store unused cartridges in a clean and dry environment.
• Avoid mechanical shock or contamination of the EEPROM connector surface.

System Verification

• Verify processor recognition after cartridge installation.
• Confirm stored program data before returning the controller to service.
• Check processor revision compatibility before restoring application files.

Frequently Asked Questions

• What type of memory does the 1785-ME64 use?

  The 1785-ME64 uses EEPROM technology, providing non-volatile storage for PLC-5 processor program data.

• Which PLC processors support the 1785-ME64?

  The cartridge is designed for Allen-Bradley PLC-5/40 and PLC-5/60 processor systems.

• What is the memory capacity of the 1785-ME64?

  The cartridge provides 64K words of EEPROM memory capacity for PLC application storage.

• Does the 1785-ME64 require continuous power to retain data?

  No. EEPROM memory retains stored information without continuous electrical power.

• Can the 1785-ME64 be used with ControlLogix processors?

  No. The cartridge is designed for PLC-5 processor architecture and is not compatible with ControlLogix systems.

• What should be checked before installing the cartridge?

  Verify processor compatibility, cartridge orientation, and memory requirements before installation.

• Is the 1785-ME64 a communication module?

  No. The 1785-ME64 is a memory storage cartridge and does not provide network communication functions.

• Can the 1785-ME64 store PLC program backups?

  Yes. The EEPROM cartridge is used for non-volatile storage, backup, and transfer of PLC-5 application programs.