Product Summary
The 1766-MM1 memory module boosts MicroLogix 1400 controllers with an extra 384 KB of secure storage. It prevents accidental data loss from surges or human error, ensuring high machine availability and safe program transport between controllers.
Step-by-Step Installation Guide for the 1766-MM1
Insert the 1766-MM1 directly into the dedicated memory module slot on your MicroLogix 1400 controller. You can perform this operation while power is applied to the system. After insertion, cycle the controller power so it recognizes the new module.
Configure the controller using the built-in screen. Use the system prompts to command automatic loading from the module. Set control bit S:1/11 "Load Memory Module Always" for continuous backup. The module transfers its contents to the controller memory automatically.
The module supports hot insertion and removal under power. However, the controller must go through a power cycle to detect the module after any such action. This design allows quick field upgrades without shutting down critical processes.
Expert Technical Evaluation of the 1766-MM1
The 1766-MM1 provides a separately allocated memory of 384 KB for user programs and data. It does not increase the integrated memory but acts as an independent backup medium. Operating temperature range is 0–55 °C, suitable for typical industrial environments.
Key safety features include data file write protection and memory module write protection. In case of a controller fault, the module supports auto-recovery through a power cycle. This ability to automatically reload the program after a fault minimizes downtime for press control and other critical applications.
The module also allows program comparison between its stored copy and the controller. This feature helps verify that the correct program is running after a transfer. Status bits S:1/10, S:1/11, and S:1/12 provide real-time feedback on module operation.
Compatibility & Performance
This memory module works with MicroLogix 1400 controllers: 1766-L32AWA, 1766-L32AWAA, 1766-L32BWA, 1766-L32BWAA, 1766-L32BXB, and 1766-L32BXBA. Each controller ships with a memory module port and cover. Using the 1766-MM1 eliminates unplanned shutdowns caused by program corruption.
Logistics & Standard Packaging Details
Express delivery shipping is available via FedEx, UPS, and DHL. All items are securely packed to prevent damage during transit.
