Configured for firmware maintenance and data logging in ControlLogix and CompactLogix controller platforms, the Allen-Bradley 1784-SD1 (1784-SD1/A Memory Card) provides direct physical non-volatile storage execution.

Model Variant Overview

The 1784-SD1 serves as the standard 1 GB capacity Secure Digital card for Rockwell Automation Logix controllers. The designation 1784-SD1/A indicates the primary revision level used for firmware image storage, user program backup, and data logging functions. The hardware utilizes standard SD interface geometry, ensuring compatibility with the SD slots integrated into the CPU modules of the specified controller series.

Hardware Specifications

Firmware and Controller Interface

This module facilitates operations regarding firmware flash compatibility and deterministic backplane configuration storage. When inserted into the controller, the card interfaces directly with the backplane communication bus, allowing for the transfer of project files and the retrieval of diagnostic logs. The module ensures the integrity of firmware updates by providing a standardized, removable read/write environment that isolates program images from the controller processor's volatile memory.

Package Contents

• 1x 1784-SD1 Secure Digital Card

• 1x Anti-static protective plastic case

• Manufacturer compliance documentation

Field Installation Guidelines

When installing the 1784-SD1, verify that the controller is mounted in a stable, vibration-free enclosure. Follow ESD (Electrostatic Discharge) protocols to prevent component damage. Ensure the SD card is oriented correctly before insertion into the controller slot; the card should click into place without excessive force. For applications involving frequent data logging, verify that the controller firmware supports the active write cycle limits of the storage media. Do not remove the card while the controller is actively accessing the file system to avoid corruption of the non-volatile memory partitions.

Logistics and Transit Protocols

Delivery time is 2-7 days after payment processing. All units are shipped via DHL, FEDEX, or UPS. Each component is enclosed in anti-static industrial packaging to mitigate electromagnetic interference and physical degradation during transit. The transit container is reinforced to maintain environmental integrity until the component reaches the designated industrial site.

Operational FAQs

Q: Is the 1784-SD1 hot-swappable during controller operation?

A: No. Consult the specific controller manual, but generally, insertion or removal during active processor execution or while the file system is mounted may result in data loss or file corruption.

Q: What file system format does the controller require?

A: The card must be formatted to FAT or FAT32 to be recognized by the ControlLogix or CompactLogix controller file system.

Q: Can this card be used for long-term data logging?

A: While functional for logging, the 1 GB capacity and NAND flash endurance are optimized for project backups and firmware files. For continuous high-frequency data logging, monitor the write cycle limits.