The Allen-Bradley 1785-ME16 is a 16K Word EEPROM memory module designed for the PLC-5 series. It provides non-volatile program backup and features a hardware write-protection jumper to ensure data integrity and automatic system recovery for enhanced and Ethernet PLC-5 processors.
The Allen-Bradley 1785-ME16 serves as a critical data backup and storage solution for the legacy PLC-5 processor family. This Electrically Erasable Programmable Read-Only Memory (EEPROM) module provides a non-volatile environment to safeguard user programs and system configurations. By storing a master copy of the controller’s logic, the module ensures that the automation system can automatically recover and resume operations following a power loss or memory corruption event.
Maintenance teams install the 1785-ME16 in PLC-5 systems to eliminate the risk of extended downtime. In facilities where battery failure might result in the loss of volatile RAM, this EEPROM module acts as the definitive secondary storage. It is particularly valuable in remote or unmanned stations, such as water pumping facilities or oil pipelines, where an automatic program reload is necessary to restore the system without manual intervention from a technician.
The Allen-Bradley 1785-V40L is a vintage, high-performance PLC-5 processor card designed for seamless slot integration directly into a VMEbus backplane architecture. Featuring 48,000 words of internal user memory and support for 64 KB VME transfer speeds, this versatile controller bridge contains 4 built-in Data Highway Plus (DH+) communication ports alongside an independent Remote I/O (RIO) scanner capable of driving up to 15 external racks. Built with discrete serial port channels (RS-232/422/423) and compliant with strict CE safety certifications, it provides a rugged, highly secure solution for maintaining legacy industrial systems, embedded test setups, and cross-platform automation architectures.
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