Allen-Bradley 1784-CF64 Memory Module | Replacement, Equivalent & Selection Guide
The Allen-Bradley 1784-CF64 is a 64 MB CompactFlash memory card designed for use with Rockwell Automation ControlLogix and SoftLogix programming terminals. It provides reliable, non-volatile program storage for PLC ladder logic, function block diagrams, and structured text programs. This page serves as a comprehensive selection guide for engineers sourcing the 1784-CF64 or evaluating compatible replacement and equivalent options.
Technical Specifications
- Part Number: 1784-CF64
- Manufacturer: Allen-Bradley / Rockwell Automation
- Memory Capacity: 64 MB CompactFlash (CF)
- Form Factor: CompactFlash Type I
- Interface: ATA / IDE (CF-to-ATA compatible)
- Operating Temperature: 0 °C to 60 °C
- Storage Temperature: -40 °C to 85 °C
- Humidity: 5% to 95% non-condensing
- Compatibility: 1784-PCMK, 1784-U2CN, RSLinx, RSLogix 5000 / Studio 5000
- Data Retention: Non-volatile; retains data without power
- Certifications: CE, UL (as part of Rockwell system)
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the 1784-CF64. Always verify firmware and software compatibility before substitution:
- 1784-CF128 — Allen-Bradley 128 MB CF card; direct upgrade, backward compatible
- 1784-CF256 — Allen-Bradley 256 MB CF card; suitable for larger program storage needs
- 1784-CF512 — Allen-Bradley 512 MB CF card; maximum capacity in the 1784-CF series
- Generic Industrial CF 64MB (SLC/MLC) — Third-party CompactFlash cards may function for data logging but are not recommended for primary PLC program storage due to write-endurance and certification concerns
- 1784-PCMK/B — PCMCIA-based alternative for older 1784 series terminals (different form factor)
Note: Konmask.com supplies genuine Allen-Bradley / Rockwell Automation parts. Contact us to confirm cross-compatibility for your specific application.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-validated for use with Rockwell Automation ControlLogix, SoftLogix, and 1784-series programming terminals
- Industrial-Grade Reliability: Designed for extended temperature ranges and high-vibration environments typical of manufacturing floors
- Firmware Integrity: Ensures full compatibility with RSLogix 5000 / Studio 5000 project files without data corruption risk
- Regulatory Compliance: Maintains CE/UL system-level certifications when used as part of a validated Rockwell control system
- Long-Term Support: Rockwell Automation provides lifecycle documentation and firmware update paths for genuine parts
Typical Applications
- Program backup and transfer for ControlLogix PLC systems
- Firmware storage for 1784-series programming terminals
- Field-service program deployment on manufacturing lines
- Disaster recovery and rapid controller replacement in automotive, food & beverage, and oil & gas industries
- Data logging and recipe storage in process control applications
System Compatibility
- Programming Terminals: 1784-PCMK, 1784-PCMK/B, 1784-U2CN
- Software: RSLogix 5000 v16+, Studio 5000 Logix Designer v21+, RSLinx Classic, RSLinx Enterprise
- Controllers: ControlLogix 1756 series, CompactLogix 1769 series (via programming terminal)
- Operating Systems: Windows 7 / 10 / 11 (64-bit) with appropriate Rockwell software suite
Selection Guide
Use the following criteria to select the correct memory module for your application:
- Program Size: For projects under 32 MB, the 1784-CF64 is sufficient. For larger projects or future expansion, consider the 1784-CF128 or 1784-CF256.
- Terminal Type: Confirm your programming terminal accepts CompactFlash Type I cards. Older terminals may require PCMCIA adapters.
- Environment: For harsh environments (high vibration, wide temperature swings), always specify genuine Allen-Bradley CF cards over generic alternatives.
- Budget vs. Risk: Third-party CF cards may reduce upfront cost but introduce compatibility and reliability risks in safety-critical systems. Genuine parts are strongly recommended for SIL-rated or FDA-regulated applications.
- Quantity: For MRO (Maintenance, Repair & Operations) stocking, we recommend keeping at least one spare 1784-CF64 per programming terminal in service.
Quality Assurance & Sourcing
- All parts supplied by Konmask.com are sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection and, where applicable, functional verification prior to shipment
- Traceability documentation (COC, packing slips) available upon request
- Anti-static packaging and ESD-safe handling throughout the fulfillment process
- We do not supply counterfeit or remarked components — authenticity is our baseline standard
How to Order
- Online: Add to cart directly from this page
- Email: Send your BOM or part number to support@konmask.com
- Phone/WhatsApp: +0086 19859288691
- Lead Time: In-stock items ship within 1–3 business days; ex-stock orders subject to availability confirmation
- MOQ: 1 piece (bulk pricing available for orders of 5+ units)
- Payment: T/T, PayPal, credit card, and trade terms available for qualified accounts
Replacement & Compatibility FAQ
Q: Can I use a standard CompactFlash card instead of the 1784-CF64?
A: Technically possible for non-critical data storage, but not recommended for PLC program storage. Generic CF cards lack the write-endurance ratings and industrial certifications required for reliable operation in control systems.
Q: Is the 1784-CF64 compatible with Studio 5000?
A: Yes. The 1784-CF64 is compatible with Studio 5000 Logix Designer when used with a supported 1784-series programming terminal.
Q: What is the difference between 1784-CF64 and 1784-CF128?
A: The primary difference is storage capacity (64 MB vs. 128 MB). Both use the same CompactFlash Type I interface and are functionally interchangeable in supported terminals. The 1784-CF128 is the recommended upgrade path.
Q: Do you supply new or refurbished units?
A: Konmask.com supplies both new (factory-sealed) and tested-surplus units. Condition is clearly stated on each listing. Contact us if you require new-in-box only.
Q: Can Konmask.com provide a Certificate of Conformance?
A: Yes. COC documentation is available upon request for all orders.
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Contact: support@konmask.com | +0086 19859288691
