Brand:Allen Bradley PLC Item No.:1785-ME64/A Product Origin:USA Product Dimensions:110 x 20 x 80 mm Product Weight:0.09 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 1785-ME64/A is a 64K-word EEPROM memory cartridge designed for PLC-5 enhanced programmable controllers. It is used to store and preserve controller programs in a non-volatile format, ensuring that automation logic is retained even in the event of power loss or system shutdown.
Technical Specifications
Parameter
Specification
Product Type
EEPROM Memory Card
Series
PLC-5 Memory Modules
Model
1785-ME64/A
Memory Capacity
64K Words
Memory Type
Electrically Erasable Programmable ROM (EEPROM)
Function
Program backup and restoration
Compatibility
PLC-5/40, PLC-5/60 enhanced processors
Rewrite Capability
Yes (multiple cycles)
Installation
Controller memory slot
Operating Temperature
0°C to 60°C
Storage Temperature
-40°C to 85°C
Dimensions
110 × 20 × 80 mm
Weight
0.09 kg
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Applications
• Program backup storage for PLC-5 enhanced controllers
• Non-volatile memory retention for industrial automation programs
• Fast recovery of controller configuration after power loss or CPU replacement
• Standardized program deployment across multiple PLC-5 systems
• Field maintenance support for legacy Rockwell Automation installations
• Archiving and restoring controller logic in commissioning environments
Advantages
• EEPROM non-volatile architecture ensures program retention without battery dependency
• Compatible with PLC-5 enhanced processor series for flexible system integration
• Supports repeated erase and rewrite cycles for program updates in the field
• Improves system recovery time after hardware replacement or failure
• Compact cartridge design enables direct installation into controller memory slot
• Reliable long-term storage for industrial environments with electrical noise exposure
Technical FAQs
Q1: What is the main function of the 1785-ME64/A?
It is used to store PLC-5 program data as non-volatile EEPROM memory for backup and recovery.
Q2: Which PLC systems is it compatible with?
It is designed for Allen-Bradley PLC-5 enhanced controllers such as PLC-5/40 and PLC-5/60 series.
Q3: Does it require battery backup?
No, it uses EEPROM technology and does not rely on batteries for memory retention.
Q4: Can the memory be rewritten?
Yes, it is electrically erasable and can be reprogrammed multiple times.
Q5: What is the storage capacity?
It provides 64K words of program storage capacity.
Q6: What happens if the module is removed during operation?
Removal during operation is not recommended and may cause program corruption or system faults.
Q7: Is it hot-swappable?
No, it should only be installed or removed with power removed from the system.
Q8: Can it be used for data logging?
No, it is intended for program storage rather than real-time data logging.
Q9: Is it still commonly used today?
It is mainly used in legacy PLC-5 systems still operating in industrial environments.
Q10: What is the benefit over battery-backed RAM?
It provides permanent storage without battery failure risk, improving long-term reliability.
