Allen Bradley 1785-ME64-A Specification
| Manufacturer | Allen-Bradley | Product Series | PLC-5 |
| Component Type | EEPROM Memory Module | Memory Capacity | 64K Words |
| Compatibility | PLC-5/40, PLC-5/60 | Memory Type | Electrically Erasable Programmable Read-Only Memory |
| Features | Write-enable jumper, integrated expansion port | Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Country of Origin | USA | Product Number | 1785-ME64 |
Allen Bradley 1785-ME64-A Features
Non-Volatile Storage: 1785-ME64-A Allen Bradley provides secure, long-term backup of ladder logic programs and data tables without the need for battery power.
Write-Protection: 1785-ME64-A Allen Bradley includes a physical write-enable jumper to prevent accidental overwriting or unauthorized modification of stored data.
Automatic Loading: 1785-ME64-A Allen Bradley can be configured to automatically transfer the stored program to the processor's RAM upon power-up if a memory error is detected.
Expansion Port: 1785-ME64-A Allen Bradley features a built-in control coprocessor expansion port for connecting additional communication or specialized modules.
User-Removable: Compact, plug-in design for 1785-ME64-A Allen Bradley allows for easy transfer of programs between compatible PLC-5 processors.
High Reliability: Industrial-grade EEPROM technology for 1785-ME64-A Allen Bradley is designed for stable performance in harsh electrical environments.
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Allen Bradley 1785-ME64-A Application
Non-Volatile Program Backup: Allen Bradley PLC-5 EEPROM Memory Cartridge provides a permanent "master copy" of PLC-5 ladder logic and data tables to prevent loss during battery failure.
Automatic Disaster Recovery: Allen Bradley PLC-5 EEPROM Memory Cartridge enables the processor to automatically reload the control program from the module upon power-up if RAM corruption is detected.
Remote Site Reliability: Allen Bradley PLC-5 EEPROM Memory Cartridge ensures independent system recovery for unmanned locations like pumping stations, substations, or SCADA remote sites.
Program Replication: Allen Bradley PLC-5 EEPROM Memory Cartridge facilitates the rapid cloning of identical control logic across multiple machines or production lines without requiring a PC.
Data Integrity Protection: 1785-ME64-A PLC-5 EEPROM Memory Cartridge secures critical industrial processes (Automotive, Chemical, Water Treatment) against downtime caused by volatile memory errors.
Legacy Maintenance: 1785-ME64-A PLC-5 EEPROM Memory Cartridge extends the service life of existing PLC-5/40 and PLC-5/60 systems by ensuring reliable firmware and software storage.
Allen Bradley 1785-ME64-A Images
1785-ME64-A PLC-5 EEPROM Memory Cartridge
1785-ME64-A PLC-5 EEPROM Memory Cartridge
1785-ME64-A PLC-5 EEPROM Memory Cartridge
1785-ME64-A PLC-5 EEPROM Memory Cartridge
Allen Bradley 1785-ME64-A FAQ
Q: What is the primary function of the 1785-ME64-A?
A: The 1785-ME64-A is an EEPROM memory module designed to provide non-volatile storage and backup for the user program and data table of compatible PLC-5 processors.
A: The 1785-ME64-A is an EEPROM memory module designed to provide non-volatile storage and backup for the user program and data table of compatible PLC-5 processors.
Q: Which PLC-5 processors are compatible with the 1785-ME64-A?
A: The 1785-ME64-A is specifically designed for use with Enhanced and Ethernet PLC-5 controllers, such as the PLC-5/40 and PLC-5/60 models.
A: The 1785-ME64-A is specifically designed for use with Enhanced and Ethernet PLC-5 controllers, such as the PLC-5/40 and PLC-5/60 models.
Q: Does the 1785-ME64-A require a battery to retain its data?
A: No, because the 1785-ME64-A utilizes Electrically Erasable Programmable Read-Only Memory (EEPROM) technology, it retains the stored program indefinitely without the need for battery backup.
A: No, because the 1785-ME64-A utilizes Electrically Erasable Programmable Read-Only Memory (EEPROM) technology, it retains the stored program indefinitely without the need for battery backup.
Q: How do I prevent the data on the 1785-ME64-A from being accidentally overwritten?
A: The 1785-ME64-A features a physical write-enable jumper that can be set to the "protected" position to prevent any unauthorized or accidental changes to the stored logic.
A: The 1785-ME64-A features a physical write-enable jumper that can be set to the "protected" position to prevent any unauthorized or accidental changes to the stored logic.
Q: Can the 1785-ME64-A automatically load the program into the CPU?
A: Yes, when the processor's DIP switches are configured correctly, the 1785-ME64-A can automatically transfer its stored program to the processor RAM during power-up if a memory error is detected.
A: Yes, when the processor's DIP switches are configured correctly, the 1785-ME64-A can automatically transfer its stored program to the processor RAM during power-up if a memory error is detected.
Q: What is the total memory capacity of the 1785-ME64-A module?
A: The 1785-ME64-A provides a total memory capacity of 64K words, which matches the maximum memory limit for the PLC-5/40 and PLC-5/60 processors.
A: The 1785-ME64-A provides a total memory capacity of 64K words, which matches the maximum memory limit for the PLC-5/40 and PLC-5/60 processors.
Q: Does the 1785-ME64-A include an expansion port for other modules?
A: Yes, the 1785-ME64-A is equipped with a control coprocessor expansion port, allowing for additional hardware integration while the memory module is installed.
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