Supply 1764-MM1 Allen Bradley Memory Module Wholesale Factory

Product Specification

Specification		Product Image
Manufacturers	Allen-Bradley
Product No.	1764-MM1
Type	Memory Module
Memory Size	8 KB
Temperature Rating	0…55 °C (32…131 °F)
Power supply inrush	120V AC = 25 A for 8 ms
Number of I/O	12 inputs 12 outputs
Input circuit type	24V DC, sinking/sourcing
Line power	85…265V AC @ 47…63 Hz
Power supply usage	88VA

Product Feature

8 KB of non-volatile EEPROM memory for user program and data.

Program Transport: Allows easy transfer of programs between multiple MicroLogix 1500 controllers.

Data File Download Protection: Helps protect critical user data from being overwritten during program downloads.

Memory Module Write Protection: Prevents unauthorized modifications to the module's content.

Removal and Insertion Under Power (RIUP) support: Though a power cycle may be needed for the processor to recognize the module.

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Summary AB 1764-MM1

The Allen-Bradley 1764-MM1 is a crucial Memory Module designed specifically for the MicroLogix 1500 Programmable Logic Controller (PLC). Its primary function is to provide non-volatile program and data storage for the controller, acting as a robust backup and transfer mechanism for the PLC's operational logic.

This module uses EEPROM (Electrically Erasable Programmable Read-Only Memory), which means it retains its contents even when power is removed from the controller and without the need for a backup battery. This significantly enhances the reliability of the MicroLogix 1500 system by ensuring that the user program and data files are automatically loaded into the controller's active memory upon power-up, even after a complete power loss or if the internal battery-backed memory fails.