Product Overview

The Allen-Bradley 1747-M11 Series B functions as a plug-in, hardware-based backup solution for the modular SLC 500 controller platform. This 32 KB Electrically Erasable Programmable Read-Only Memory (EEPROM) cartridge provides dedicated, non-volatile storage for user application programs and critical register data files. It inserts directly into the built-in memory expansion slot of SLC 5/03, SLC 5/04, and SLC 5/05 processors. By retaining data indefinitely without electrical current, this 100% brand new, factory-original module eliminates the risk of memory wipes during extended power outages or battery failures, facilitating seamless system restoration across automated production environments.

Technical Specifications

Engineering Advantages

• Eliminate Battery-Dependency Failures: The EEPROM architecture writes code directly into stable, non-volatile memory cells. This hardware layer keeps your ladder logic intact even if the primary chassis power fails and the central processing unit's lithium battery drains completely.

• Automate Field Recovery Procedures: When configured via programming software, the 1747-M11 triggers an automatic code restoration sequence immediately upon power initialization. If a processor encounters a memory fault, it automatically reloads the production code from this cartridge, bypassing manual technician updates.

• Streamline Hardware Replication: The ultra-lightweight, tool-free plug-in cartridge design allows engineers to mirror operating programs rapidly. You can program a master cartridge in the laboratory and insert it directly into field CPUs to standardize code configurations across identical production machinery.

• Withstand Extreme Factory Thermal Profiles: This add-on board meets the full industrial environmental standards of the SLC 500 platform, functioning flawlessly across a 0 to 60 degrees Celsius range. It resists the thermal cycling strains typical of unventilated distributed control cabinets.

• Protect Intellectual Code Assets: The module provides a secure, physical medium to archive validated golden-image logic files. Keeping a dedicated 1747-M11 cartridge populated on the CPU motherboard prevents unauthorized online code alterations from permanently overwriting factory-default operating parameters.

FAQs

• Does the 1747-M11 Series B module work with basic SLC 5/01 or SLC 5/02 processors?

  No. The 1747-M11 memory cartridge features physical sizing and electrical logic connections designed specifically for the advanced SLC 5/03, SLC 5/04, and SLC 5/05 central processing units. Basic SLC 5/01 and 5/02 controllers utilize a completely different physical form factor for their memory chips.

• How do I force the SLC processor to load the program from the memory module?

  To enable this behavior, you must establish specific bit configurations within the status file of your RSLogix 500 project prior to burning the code to the module. Setting the "Load Memory Module on Power-up" bit (S:1/10) instructs the CPU to overwrite its internal volatile RAM with the contents of the 1747-M11 every time the control chassis cycles power.

• What is the structural condition of this specific 1747-M11 unit?

  We supply this item as a 100% brand new, original factory-sealed item. The unit remains preserved inside its authentic Allen-Bradley protective static shielding sleeve and industrial product boxing, guaranteeing immaculate gold contact pins and zero previous installation wear.