Allen-Bradley 1747-M13 Memory Module

The Allen-Bradley 1747-M13, also cataloged as the 1747-M13 Memory Module, operates as a dedicated hardware component for non-volatile Flash backup of program logic and data tables within SLC 5/03, SLC 5/04, and SLC 5/05 processors.

Hardware Specifications

Deterministic Backplane & I/O Density Scaling

The module mounts directly onto the processor board to provide non-volatile storage for user logic and configuration tables, preventing program corruption in the event of main battery failure. Upon chassis power restoration, the SLC processor automatically restores binary data from the Flash array onto the internal processor bus before initiating backplane communication. This eliminates program reload latency, permitting deterministic network startup and synchronous scanning across local rack I/O modules and remote communication links without firmware flash compatibility issues.

Frequently Asked Questions

Q: Which socket adapter module is required to interface the 1747-M13 with SLC 500 processors?

A: The 1747-M13 must strictly be paired with a 1747-M15 Series B memory adapter module; using a Series A adapter can cause electrical damage to the Flash chip.

Q: How is the jumper configured on the processor PC board for the 1747-M13 module?

A: Hardware jumper setting rules require bridging pin A18 to the center pin on the target processor board to ensure proper addressing of the 64 KB Flash array.

Q: Does the 1747-M13 require battery backup to maintain user logic files during long-term storage?

A: No, the 1747-M13 utilizes non-volatile Flash technology, retaining all stored program files, register values, and I/O parameters indefinitely without consuming power.

Field Installation Guidelines

Ensure total power to the SLC 500 chassis is turned OFF before removing the processor module from its slot. Observe strict electrostatic discharge (ESD) precautions by wearing a grounded wrist strap, as electrostatic charges can corrupt or destroy the onboard Flash memory.

Align the keying pins of the 1747-M13 with the socket on the 1747-M15 Series B memory adapter module, pressing firmly until fully seated. Insert the combined adapter assembly into the processor main board header, ensuring correct orientation relative to pin A18 jumper settings. Reinsert the processor into the chassis slot, lock the retaining latches, and apply chassis power to initiate EEPROM program burning or automated boot loading via software setup.