Allen Bradley 1766-MM1 MicroLogix 1400 Memory Module

Product Overview

The Allen Bradley 1766-MM1 acts as a robust external storage expansion for the MicroLogix 1400 controller platform. This module provides 384 Kbytes of non-volatile memory to store critical user programs and system data. It eliminates the risk of logic loss during extended power outages and simplifies large-scale machine deployment by enabling rapid program cloning across multiple controllers. We supply this unit as 100% Brand New and Factory Original, ensuring your code remains secure in the most demanding industrial environments.

Technical Specifications

Engineering Advantages

• Autonomous Disaster Recovery: The 1766-MM1 triggers an automatic program load following a controller fault or power cycle. This "auto-recovery" feature significantly reduces Mean Time to Repair (MTTR) by eliminating the need for a laptop or on-site engineer to reload the software.

• Enhanced Safety Compliance: This module includes specialized safety and security features tailored for press control and other high-risk applications. It permits rigorous program comparison between the internal controller RAM and the module’s flash memory to detect unauthorized code tampering.

• Rapid Field Deployment: The 1766-MM1 facilitates "sneakernet" program transport. Maintenance teams can save a gold-standard program to the module and move it to another 1766-series controller, ensuring 100% consistency across identical production lines without connecting to a network.

• Permanent Data Protection: Integrated write-protection settings prevent accidental overwriting of the data file or user program. This hardware-level lock ensures that machine parameters and critical logic remain intact despite operator errors or communication glitches.

FAQs

• Does the 1766-MM1 require a battery to retain its memory?

  No. The 1766-MM1 utilizes non-volatile flash technology. It retains your program and data indefinitely without the need for a backup battery, making it an ideal long-term storage solution for remote or infrequently powered equipment.

• How do I initiate the automatic program load from the module?

  You must configure the "Load Memory Module on Power Up" bit within the MicroLogix 1400 controller properties using RSLogix 500. Once set, the controller automatically checks the 1766-MM1 and loads the stored program every time the system restarts.

• Can I swap this module while the PLC is under power?

  We strongly recommend powering down the MicroLogix 1400 before inserting or removing the 1766-MM1. Removing the module during an active write cycle can corrupt the data and trigger a controller major fault.

• Is this a brand new Allen Bradley original?

  Yes. We guarantee this 1766-MM1 is 100% Brand New in its original factory packaging. We do not deal in refurbished, used, or third-party compatible modules, ensuring full compatibility with your Rockwell Automation hardware.