Memory Module Adapters | Allen-Bradley 1747-M15

The 1747-M15 is an adapter socket manufactured by Allen-Bradley for the SLC 500 programmable logic controller system. It serves as an intermediate hardware interface that allows 1747-M11, 1747-M12, and 1747-M13 memory modules to be installed into the memory sockets of SLC 5/03, SLC 5/04, and SLC 5/05 processors. By ensuring proper physical fit and pin alignment, the 1747-M15 enables seamless utilization of existing EEPROM and UVPROM memory devices across modular SLC controllers.

Hardware Compatibility and Functionality

The adapter is specifically engineered to bridge memory module form-factor differences within the SLC 500 family. It accepts 32-pin linear memory devices and adapts them to the dedicated socket on SLC 5/03, 5/04, and 5/05 modular CPU boards. This socket adapter is purely a physical pass-through connection and does not contain onboard memory registers or consume processor addressing space.

System Integration and Use Cases

During processor upgrades or maintenance replacements, the 1747-M15 permits maintenance teams to reuse programmed 1747-M11 (EEPROM), 1747-M12 (EPROM), or 1747-M13 (EEPROM) modules on newer SLC 5/03 through 5/05 controllers. Once mated with a compatible memory module, the combined assembly plugs directly into the processor board socket prior to applying system power.

Frequently Asked Questions

Q: Does the 1747-M15 adapter socket contain internal program memory? A: No, the 1747-M15 is a passive adapter socket designed to accommodate 1747-M11, 1747-M12, or 1747-M13 memory modules; it holds no memory storage on its own.

Q: Which SLC 500 processors require the 1747-M15 adapter to use 1747-M11, M12, or M13 memory modules? A: The adapter is required when installing these specific memory modules into modular SLC 5/03, SLC 5/04, and SLC 5/05 processors.