Allen Bradley 1784-SD2 ControlLogix Secure Digital Memory Card
Allen Bradley 1784-SD2 ControlLogix Secure Digital Memory Card
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Brand:Allen Bradley PLC Item No.:1784-SD2 Product Origin:USA Product Dimensions:60 × 20 × 50 mm Product Weight:0.24 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1784-SD2 Secure Digital Memory Card is presented as an industrial automation memory accessory for compatible Allen-Bradley equipment. Removable storage media can be useful for managing files and supporting maintenance workflows, but available functions depend on the specific controller and firmware.
When sourcing this component, it is important to verify the product designation and supported host platform. Not every memory card is compatible with every ControlLogix controller, and the physical SD format alone does not guarantee functional compatibility.
For maintenance teams and spare-parts buyers, matching the complete catalog number against the original equipment documentation helps reduce the risk of purchasing an unsuitable replacement. Confirm the card's capacity and supported use before installing it in a control system.
Technical Specifications
Parameter
Specification
Brand
Allen-Bradley
Model
1784-SD2
Product Type
Secure Digital Memory Card
Product Category
Industrial Automation Memory Accessory
Memory Format
SD
Intended Platform
Confirm exact compatibility with manufacturer documentation
Storage Capacity
Verify from the product label or official specifications
Supported Functions
Dependent on the compatible host device
Dimensions
60 × 20 × 50 mm
Weight
0.24 kg / 0.53 lb
Note: The supplied dimensions and weight are reproduced as provided. Confirm the physical measurements, storage capacity, and exact product designation before ordering.
Recommended Related Models
The following Allen-Bradley memory and control products may be relevant when comparing storage requirements. They are not necessarily direct replacements for the 1784-SD2.
Allen-Bradley 1756-EN2T — ControlLogix EtherNet/IP communication module.
Allen-Bradley 1756-EN2TR — ControlLogix EtherNet/IP communication module.
Selection note: Controllers, communication modules, and memory accessories have different functions. Confirm the exact controller model and its supported memory format before purchasing a replacement card.
Applications
The Allen-Bradley 1784-SD2 Secure Digital Memory Card is a removable storage accessory associated with compatible Allen-Bradley industrial automation equipment. Memory cards used in control systems can support program storage, data transfer, and controller maintenance, depending on the host device and its supported functions.
Typical application areas include:
Controller Memory Management: Provides removable storage for compatible control hardware.
Program Transfer: Supports transferring files where the controller and engineering workflow permit memory-card operations.
Maintenance and Recovery: May be used in supported service procedures for maintaining or restoring automation equipment.
Industrial Spare-Parts Management: Provides a specific catalog number for identifying a required memory accessory.
Legacy System Support: Can be considered when maintaining existing installations that specify this memory-card model.
Before use, verify that the target controller explicitly supports the 1784-SD2. Memory-card compatibility varies across Allen-Bradley product families.
Advantages
Removable Storage Format: Uses an SD memory-card format for compatible hardware.
Convenient Maintenance: Can simplify storage-media replacement in supported systems.
Catalog-Number Identification: The 1784-SD2 designation helps distinguish the required accessory when sourcing parts.
Industrial Automation Application: Intended for use in compatible Allen-Bradley equipment.
Spare-Part Replacement: Can help maintenance teams identify the specified memory card for an existing installation.
Compact Media Design: Offers a small storage format suited to equipment designed for compatible memory cards.
Technical FAQs
1. What is the Allen-Bradley 1784-SD2?
It is identified in the supplied product description as a Secure Digital memory card for industrial automation applications. Confirm the exact supported platform and product designation against manufacturer documentation.
2. What is the storage capacity of the 1784-SD2?
The capacity should be confirmed from the product label or official technical documentation. Do not infer capacity from the catalog number alone.
3. Is the 1784-SD2 compatible with all ControlLogix controllers?
No. Memory-card support depends on the controller model, hardware revision, and firmware. Check the applicable controller manual before installation.
4. What is a Secure Digital memory card used for in automation?
Depending on the host equipment, it may support file storage, data transfer, or designated controller maintenance operations.
5. Can the card be used to back up a PLC program?
Only if the target controller supports the card and provides the required backup or storage functionality. Confirm the supported procedure in the controller documentation.
6. Is an SD card interchangeable with a CompactFlash card?
No. SD and CompactFlash use different physical formats and interfaces. Use the storage format specified by the host device.
7. Can a standard commercial SD card replace the 1784-SD2?
Not necessarily. The replacement must meet the controller's requirements for capacity, formatting, media compatibility, and supported operation.
8. Should the memory card be removed while equipment is operating?
Follow the manufacturer's instructions. Do not remove the card during a write operation or while the controller is using it unless the documentation explicitly permits removal.
9. What should be checked before ordering this memory card?
Verify the full catalog number, storage capacity, host-controller compatibility, supported firmware, and any required formatting procedure.
10. Can the 1784-SD2 be used in a modern ControlLogix system?
Compatibility should not be assumed based on the ControlLogix name alone. Check the exact controller catalog number and its approved storage-media requirements.
